Please wait… 
Please wait while we process your order,
do not press the back button…
do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Category Filter
Price Match Guarantee
Worldwide Delivery
12 Month Warranty
Coolant Hoses - Centre Section
Filter by brand
Vehicle Group
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Information
Front engine coolant intake pipe / line hose
This original Porsche coolant pipe forms part of the front radiator feed and return system, helping carry coolant through the front cooling circuit to maintain correct engine temperature.
Fits:
Porsche 997.1 Carrera 3.6L 2005 - 2008 (Engine code: 9605)
Porsche 997.1 Carrera 3.8L 2005 - 2008 (Engine code: 9701)
Porsche 997.1 Turbo 3.6L 2007 - 2009 (Engine code: 9770)
Porsche 997.2 Carrera 3.6L 2009 - 2012 (Engine code: A102)
Porsche 997.2 Carrera 3.8L 2009 - 2012 (Engine code: A101)
Porsche 997.2 Turbo 3.8L 2010 - 2013 (Engine code: A170)
Porsche 997 GT3 3.6L 2007 - 2010 (Engine code: 9776)
Diagram ref no 15
This part supersedes / cross-references the earlier Porsche numbers: 99710665102, 99710665103
What This Part Does / Functions
• Carries coolant within the front radiator cooling circuit
• Connects into the front coolant pipework and radiator feed system
• Helps maintain correct coolant flow between the engine and front radiators
• Supports stable engine operating temperature
• Helps prevent coolant restriction caused by aged, damaged or blocked pipework
• Provides correct OE Porsche shape, connection points and fitment
• Replaces a leaking, cracked, corroded or damaged original coolant pipe
• Supports reliable cooling system performance on high-performance 997 models.
Why Replace This Part?
The coolant pipe is exposed to heat cycles, pressure, coolant additives, road debris and age-related wear. Over time, the pipe or its connections can become brittle, corroded, cracked or start leaking. A failing coolant pipe may cause coolant loss, low coolant warnings, overheating or visible leaks around the front cooling system. Replacing it with a Genuine Porsche OE coolant intake pipe helps restore correct coolant flow and factory fitment. This is especially important on performance models such as the 997 Turbo and 997 GT3, where efficient cooling is essential for engine reliability.
When to Replace This Part
• If coolant is leaking from the front radiator pipework area
• If the pipe is cracked, damaged, corroded or distorted.
• If coolant loss or low coolant warnings are present
• During front radiator or cooling hose replacement
• During front-end cooling system overhaul
• If the pipe connection points are damaged or no longer seal correctly
• After accident damage or impact to the front cooling circuit
• When restoring the cooling system with correct OE Porsche parts.
Where It Fits on the Car
This part fits in the front coolant system / front radiator circuit. It is part of the coolant feed/intake pipework that connects the vehicle’s front cooling components and helps route coolant through the radiator system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710665104
The product you are viewing cross references to these numbers
This original Porsche coolant pipe forms part of the front radiator feed and return system, helping carry coolant through the front cooling circuit to maintain correct engine temperature.
Fits:
Porsche 997.1 Carrera 3.6L 2005 - 2008 (Engine code: 9605)
Porsche 997.1 Carrera 3.8L 2005 - 2008 (Engine code: 9701)
Porsche 997.1 Turbo 3.6L 2007 - 2009 (Engine code: 9770)
Porsche 997.2 Carrera 3.6L 2009 - 2012 (Engine code: A102)
Porsche 997.2 Carrera 3.8L 2009 - 2012 (Engine code: A101)
Porsche 997.2 Turbo 3.8L 2010 - 2013 (Engine code: A170)
Porsche 997 GT3 3.6L 2007 - 2010 (Engine code: 9776)
Diagram ref no 15
This part supersedes / cross-references the earlier Porsche numbers: 99710665102, 99710665103
What This Part Does / Functions
• Carries coolant within the front radiator cooling circuit
• Connects into the front coolant pipework and radiator feed system
• Helps maintain correct coolant flow between the engine and front radiators
• Supports stable engine operating temperature
• Helps prevent coolant restriction caused by aged, damaged or blocked pipework
• Provides correct OE Porsche shape, connection points and fitment
• Replaces a leaking, cracked, corroded or damaged original coolant pipe
• Supports reliable cooling system performance on high-performance 997 models.
Why Replace This Part?
The coolant pipe is exposed to heat cycles, pressure, coolant additives, road debris and age-related wear. Over time, the pipe or its connections can become brittle, corroded, cracked or start leaking. A failing coolant pipe may cause coolant loss, low coolant warnings, overheating or visible leaks around the front cooling system. Replacing it with a Genuine Porsche OE coolant intake pipe helps restore correct coolant flow and factory fitment. This is especially important on performance models such as the 997 Turbo and 997 GT3, where efficient cooling is essential for engine reliability.
When to Replace This Part
• If coolant is leaking from the front radiator pipework area
• If the pipe is cracked, damaged, corroded or distorted.
• If coolant loss or low coolant warnings are present
• During front radiator or cooling hose replacement
• During front-end cooling system overhaul
• If the pipe connection points are damaged or no longer seal correctly
• After accident damage or impact to the front cooling circuit
• When restoring the cooling system with correct OE Porsche parts.
Where It Fits on the Car
This part fits in the front coolant system / front radiator circuit. It is part of the coolant feed/intake pipework that connects the vehicle’s front cooling components and helps route coolant through the radiator system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710665104
99710665102
99710665103
99710665104
The product you are viewing cross references to these numbers
Price: £120.20
In stock
Vehicle Group
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Information
Front engine coolant return pipe / line hose
This original Porsche coolant return pipe forms part of the front radiator cooling circuit, helping return coolant through the vehicle’s cooling system to maintain correct engine temperature and system pressure.
Fits:
Porsche 997.1 Carrera 3.6L 2005 - 2008 (Engine code: 9605)
Porsche 997.1 Carrera 3.8L 2005 - 2008 (Engine code: 9701)
Porsche 997.1 Turbo 3.6L 2007 - 2009 (Engine code: 9770)
Porsche 997.2 Carrera 3.6L 2009 - 2012 (Engine code: A102)
Porsche 997.2 Carrera 3.8L 2009 - 2012 (Engine code: A101)
Porsche 997.2 Turbo 3.8L 2010 - 2013 (Engine code: A170)
Porsche 997 GT3 3.6L 2007 - 2010 (Engine code: 9776)
Diagram ref no 16
This part supersedes / cross-references the earlier Porsche numbers: 99710665202, 99710665203
What This Part Does / Functions
• Returns coolant within the front radiator cooling circuit
• Connects into the front coolant pipework and radiator return system
• Helps maintain correct coolant circulation between the engine and front radiators
• Supports stable engine operating temperature
• Helps maintain cooling system pressure and flow
• Replaces a leaking, cracked, corroded or damaged original return pipe
• Provides correct OE Porsche shape, routing and connection points
• Supports reliable cooling system performance on high-performance 997 models.
Why Replace This Part?
The coolant return pipe is exposed to heat cycles, coolant pressure, road debris, vibration and age-related deterioration. Over time, the pipe or its connections can become brittle, corroded, cracked or begin to leak. A failing coolant return pipe may cause coolant loss, low coolant warnings, overheating, pressure loss or visible leaks around the front radiator pipework. Replacing it with a Genuine Porsche OE coolant return pipe helps restore correct coolant flow and factory fitment. This is especially important on performance models such as the 997 Turbo, 997 GT2 and 997 GT3, where efficient cooling is essential for engine reliability.
When to Replace This Part
• If coolant is leaking from the front radiator return pipework area
• If the pipe is cracked, corroded, damaged or distorted
• If coolant loss or low coolant warnings are present
• If the cooling system is not holding pressure correctly
• During front radiator or coolant hose replacement
• During front-end cooling system overhaul
• After accident damage or impact to the front cooling circuit
• When restoring the cooling system with correct OE Porsche parts.
Where It Fits on the Car
This part fits in the front coolant system / front radiator circuit. It is part of the coolant return pipework that routes coolant from the front radiator area back through the vehicle’s cooling system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710665204
The product you are viewing cross references to these numbers
This original Porsche coolant return pipe forms part of the front radiator cooling circuit, helping return coolant through the vehicle’s cooling system to maintain correct engine temperature and system pressure.
Fits:
Porsche 997.1 Carrera 3.6L 2005 - 2008 (Engine code: 9605)
Porsche 997.1 Carrera 3.8L 2005 - 2008 (Engine code: 9701)
Porsche 997.1 Turbo 3.6L 2007 - 2009 (Engine code: 9770)
Porsche 997.2 Carrera 3.6L 2009 - 2012 (Engine code: A102)
Porsche 997.2 Carrera 3.8L 2009 - 2012 (Engine code: A101)
Porsche 997.2 Turbo 3.8L 2010 - 2013 (Engine code: A170)
Porsche 997 GT3 3.6L 2007 - 2010 (Engine code: 9776)
Diagram ref no 16
This part supersedes / cross-references the earlier Porsche numbers: 99710665202, 99710665203
What This Part Does / Functions
• Returns coolant within the front radiator cooling circuit
• Connects into the front coolant pipework and radiator return system
• Helps maintain correct coolant circulation between the engine and front radiators
• Supports stable engine operating temperature
• Helps maintain cooling system pressure and flow
• Replaces a leaking, cracked, corroded or damaged original return pipe
• Provides correct OE Porsche shape, routing and connection points
• Supports reliable cooling system performance on high-performance 997 models.
Why Replace This Part?
The coolant return pipe is exposed to heat cycles, coolant pressure, road debris, vibration and age-related deterioration. Over time, the pipe or its connections can become brittle, corroded, cracked or begin to leak. A failing coolant return pipe may cause coolant loss, low coolant warnings, overheating, pressure loss or visible leaks around the front radiator pipework. Replacing it with a Genuine Porsche OE coolant return pipe helps restore correct coolant flow and factory fitment. This is especially important on performance models such as the 997 Turbo, 997 GT2 and 997 GT3, where efficient cooling is essential for engine reliability.
When to Replace This Part
• If coolant is leaking from the front radiator return pipework area
• If the pipe is cracked, corroded, damaged or distorted
• If coolant loss or low coolant warnings are present
• If the cooling system is not holding pressure correctly
• During front radiator or coolant hose replacement
• During front-end cooling system overhaul
• After accident damage or impact to the front cooling circuit
• When restoring the cooling system with correct OE Porsche parts.
Where It Fits on the Car
This part fits in the front coolant system / front radiator circuit. It is part of the coolant return pipework that routes coolant from the front radiator area back through the vehicle’s cooling system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710665204
99710665202
99710665203
99710665204
The product you are viewing cross references to these numbers
Price: £120.20
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Information
O-ring – 46.7 x 3.53 – used in various applications within the car's cooling system.
Fits:
Porsche 987 Boxster 2005-12
Porsche 987 Cayman 2006-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 718 (982) Boxster 2017>>
Porsche 718 (982) Boxster Spyder 2019>>
Porsche 718 (982) Cayman 2017>>
Porsche 718 (982) Cayman GT4 2019>>
Porsche 996 GT3 / RS 1999-05
Porsche 996 Turbo / GT2 2001-05
Porsche 997 Carrera 2005-12
Porsche 997 Turbo / GT2 RS 2007-13
Porsche 997 GT3 / RS 2007-11
Porsche 991 Carrera 2012-19
Porsche 991 Turbo / GT2 RS 2014-20
Porsche 991 GT3 / RS 2014-21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610680103
The product you are viewing cross references to these numbers
Fits:
Porsche 987 Boxster 2005-12
Porsche 987 Cayman 2006-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 718 (982) Boxster 2017>>
Porsche 718 (982) Boxster Spyder 2019>>
Porsche 718 (982) Cayman 2017>>
Porsche 718 (982) Cayman GT4 2019>>
Porsche 996 GT3 / RS 1999-05
Porsche 996 Turbo / GT2 2001-05
Porsche 997 Carrera 2005-12
Porsche 997 Turbo / GT2 RS 2007-13
Porsche 997 GT3 / RS 2007-11
Porsche 991 Carrera 2012-19
Porsche 991 Turbo / GT2 RS 2014-20
Porsche 991 GT3 / RS 2014-21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610680103
99610680103
The product you are viewing cross references to these numbers
Price: £4.96
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Information
O-ring – 46.7 x 3.53 – used in various applications within the car's cooling system.
Fits:
Porsche 987 Boxster 2005-12
Porsche 987 Cayman 2006-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 718 (982) Boxster 2017>>
Porsche 718 (982) Boxster Spyder 2019>>
Porsche 718 (982) Cayman 2017>>
Porsche 718 (982) Cayman GT4 2019>>
Porsche 996 GT3 / RS 1999-05
Porsche 996 Turbo / GT2 2001-05
Porsche 997 Carrera 2005-12
Porsche 997 Turbo / GT2 RS 2007-13
Porsche 997 GT3 / RS 2007-11
Porsche 991 Carrera 2012-19
Porsche 991 Turbo / GT2 RS 2014-20
Porsche 991 GT3 / RS 2014-21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610680103
The product you are viewing cross references to these numbers
Fits:
Porsche 987 Boxster 2005-12
Porsche 987 Cayman 2006-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 718 (982) Boxster 2017>>
Porsche 718 (982) Boxster Spyder 2019>>
Porsche 718 (982) Cayman 2017>>
Porsche 718 (982) Cayman GT4 2019>>
Porsche 996 GT3 / RS 1999-05
Porsche 996 Turbo / GT2 2001-05
Porsche 997 Carrera 2005-12
Porsche 997 Turbo / GT2 RS 2007-13
Porsche 997 GT3 / RS 2007-11
Porsche 991 Carrera 2012-19
Porsche 991 Turbo / GT2 RS 2014-20
Porsche 991 GT3 / RS 2014-21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610680103
99610680103
The product you are viewing cross references to these numbers
Price: £3.85
In stock
Vehicle Group
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Transverse Coolant Breather Line.
Diagram Ref No 13
Manufactured to Porsche's original equipment specifications, this transverse breather line forms part of the vehicle's coolant ventilation circuit, providing a dedicated passage for air and coolant to move between the relevant cooling system components.
Symptoms Of Wear Or Failure:
Cooling system breather lines are exposed to coolant, temperature changes, vibration and environmental conditions throughout their service life.
Why Replacement Matters:
Replacing a cracked, leaking or damaged transverse coolant breather line is important for maintaining reliable cooling system operation and protecting the engine against excessive temperature.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710676702
The product you are viewing cross references to these numbers
The Genuine Porsche Transverse Coolant Breather Line (Part Number 99710676702) is an important engine cooling system component designed to help maintain effective coolant circulation, air removal and reliable cooling system operation on compatible Porsche models.
Fits:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Diagram Ref No 13
Manufactured to Porsche's original equipment specifications, this transverse breather line forms part of the vehicle's coolant ventilation circuit, providing a dedicated passage for air and coolant to move between the relevant cooling system components.
The engine cooling system relies on an effective network of coolant pipes, hoses and ventilation lines to maintain consistent operating temperatures. Air trapped within the cooling circuit can interfere with coolant circulation, reduce heat transfer efficiency and contribute to localised hot spots.
The transverse coolant breather line helps provide the intended ventilation path within the cooling system, supporting the removal of trapped air and the correct distribution of coolant throughout the circuit.
Positioned within the vehicle's cooling system pipework, the line is designed to withstand normal coolant system pressure, temperature fluctuations and vibration.
Over time, the original breather line may become damaged, cracked, corroded or weakened due to ageing, exposure to heat, repeated temperature changes or mechanical stress. A leaking or restricted breather line may contribute to coolant loss, ineffective air removal and cooling system performance problems.
Replacing a damaged or deteriorated transverse coolant breather line with a Genuine Porsche component helps restore the original ventilation arrangement, maintain cooling circuit integrity and support reliable engine temperature regulation.
Ideal for cooling system repairs, coolant leak diagnosis, radiator pipework maintenance, engine servicing and preventative maintenance.
What This Product Does:
The transverse coolant breather line forms part of the engine's cooling system ventilation circuit and performs several important functions.
- Supports Cooling System Ventilation: Provides a passage for air and coolant within the designated cooling system vent circuit.
- Helps Remove Trapped Air: Allows air to migrate through the designed ventilation path, reducing the likelihood of air pockets forming within the cooling system.
- Supports Coolant Circulation: Helps maintain the conditions required for consistent coolant movement throughout the engine cooling circuit.
- Maintains Cooling System Integrity: Provides a sealed connection between the relevant cooling system components.
- Supports Engine Temperature Regulation: Helps the cooling system operate efficiently by maintaining its intended coolant ventilation arrangement.
- Reduces Airlock Risk: Supports the removal of trapped air that could interfere with coolant circulation after servicing or coolant replacement.
- Accommodates Normal System Pressure: Designed to operate under the normal temperature and pressure conditions of the vehicle's cooling system.
- Supports Cooling System Bleeding: Provides part of the intended air removal pathway when the cooling system is filled and bled according to Porsche procedures.
- Helps Protect Engine Components: Supports reliable cooling system operation, reducing the risk of problems associated with insufficient coolant circulation.
- Maintains Original Equipment Fitment: Replaces the original transverse breather line using the specified factory routing and connections.
Symptoms Of Wear Or Failure:
Cooling system breather lines are exposed to coolant, temperature changes, vibration and environmental conditions throughout their service life.
Over time, material deterioration, physical damage or corrosion may compromise the line or its connections.
Common symptoms of a worn or failing transverse coolant breather line include:
- Coolant Leakage: Visible coolant dripping or seeping from the breather line, its fittings or connection points.
- Low Coolant Level: Repeated coolant top-ups may indicate a leak within the breather line or another part of the cooling circuit.
- Visible Cracks or Splits: Damage to the pipe or its connecting sections may allow coolant to escape.
- Corrosion or Surface Deterioration: Ageing and environmental exposure may weaken the line or its fittings.
- Damaged or Loose Connections: Worn connectors, retaining clips or seals may prevent the line from remaining securely attached.
- Dried Coolant Deposits: White, pink or coloured residue around the line may indicate previous coolant seepage.
- Coolant Warning Messages: Significant coolant loss may activate the vehicle's low coolant warning.
- Engine Overheating: Coolant loss or ineffective removal of trapped air may contribute to higher-than-normal engine temperatures.
- Air Trapped in the Cooling System: A restricted or incorrectly connected vent line may contribute to persistent air pockets.
- Unusual Cooling System Noises: Gurgling or bubbling noises may occur when air remains trapped within the coolant circuit.
- Coolant Smell: Escaping antifreeze may produce a noticeable sweet smell around the vehicle.
- Physical Damage Following Repairs: Incorrect handling, accidental impact or improper installation may damage the breather line.
- Blocked or Restricted Vent Passage: Debris or internal deterioration may obstruct the intended air and coolant ventilation path.
Why Replacement Matters:
Replacing a cracked, leaking or damaged transverse coolant breather line is important for maintaining reliable cooling system operation and protecting the engine against excessive temperature.
Key Benefits of Replacement:
- Restores Cooling System Ventilation: Helps maintain the original air removal pathway within the coolant circuit.
- Reduces the Risk of Airlocks: Supports effective removal of trapped air that can interfere with coolant circulation.
- Helps Prevent Coolant Leaks: Replaces damaged lines or connections that allow coolant to escape.
- Supports Efficient Engine Cooling: Helps maintain the conditions required for effective coolant circulation and heat transfer.
- Reduces Overheating Risk: Restoring a leaking or restricted line can help address cooling system problems that may contribute to elevated engine temperatures.
- Maintains Cooling System Pressure Integrity: Provides the specified sealed connection within the cooling circuit.
- Supports Reliable Coolant Bleeding: Helps maintain the intended ventilation route during coolant refilling and servicing.
- Protects Engine Components: Reduces the risk of overheating-related damage caused by unresolved cooling system faults.
- Genuine Porsche Quality: Manufactured to the original equipment specification for compatible vehicles.
- Correct Factory Routing: Designed to match the intended transverse breather line position and connection arrangement.
- Supports Long-Term Cooling System Reliability: Helps prevent recurring problems caused by damaged or deteriorated ventilation pipework.
- Ideal During Cooling System Repairs: Suitable for replacement when surrounding coolant pipes or hoses are being serviced.
- Supports Preventative Maintenance: Allows ageing or damaged cooling system components to be replaced before more significant failures develop.
Although the transverse coolant breather line is a relatively small part of the complete cooling system, it performs an important function in maintaining the intended ventilation arrangement.
A damaged or leaking breather line can allow coolant to escape and may interfere with the cooling system's ability to remove trapped air effectively.
Persistent coolant loss or air pockets can reduce heat transfer efficiency and contribute to overheating, potentially placing additional thermal stress on the engine.
Replacing the defective line with a Genuine Porsche component helps restore the factory cooling system configuration and support dependable engine operation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710676702
99710676702
The product you are viewing cross references to these numbers
Price: £40.47
Arriving soon
Vehicle Group
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Water Coolant Distributor Tube. SUPPLY
Fits:
Porsche 987 Boxster MKI & MKII 2005>>
Porsche 987C Cayman MKI & MKII 2005>>
Porsche 997 Carrera 3.6L / 3.8L 2005-12
Porsche 997 Turbo MKI & MKII 2007>>
Porsche 997 GT3 2007-11
This product supersedes Porsche's old part numbers:
- 99710615203
Click 'Zoom in' for large parts diagram.
Diagram ref no 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710675204
The product you are viewing cross references to these numbers
Fits:
Porsche 987 Boxster MKI & MKII 2005>>
Porsche 987C Cayman MKI & MKII 2005>>
Porsche 997 Carrera 3.6L / 3.8L 2005-12
Porsche 997 Turbo MKI & MKII 2007>>
Porsche 997 GT3 2007-11
This product supersedes Porsche's old part numbers:
- 99710615203
Click 'Zoom in' for large parts diagram.
Diagram ref no 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710675204
99710615204
99710615203
The product you are viewing cross references to these numbers
Price: £174.64
In stock
Vehicle Group
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Water Coolant Distributor Tube. SUPPLY
Fits:
Porsche 987 Boxster MKI & MKII 2005>>
Porsche 987C Cayman MKI & MKII 2005>>
Porsche 997 Carrera 3.6L / 3.8L 2005-12
Porsche 997 Turbo MKI & MKII 2007>>
Porsche 997 GT3 2007-11
This product supersedes Porsche's old part numbers:
- 99710615203
Click 'Zoom in' for large parts diagram.
Diagram ref no 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710675204
The product you are viewing cross references to these numbers
Fits:
Porsche 987 Boxster MKI & MKII 2005>>
Porsche 987C Cayman MKI & MKII 2005>>
Porsche 997 Carrera 3.6L / 3.8L 2005-12
Porsche 997 Turbo MKI & MKII 2007>>
Porsche 997 GT3 2007-11
This product supersedes Porsche's old part numbers:
- 99710615203
Click 'Zoom in' for large parts diagram.
Diagram ref no 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710675204
99710615204
99710615203
The product you are viewing cross references to these numbers
Price: £80.68
In stock
Vehicle Group
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Water coolant hose, supply
OE Match coolant supply hose for selected Porsche 997.1 and 997.2 models. This replacement carries coolant along the supply circuit and provides an alternative to the original Porsche component.
Fits:
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Diagram ref no 17
What This Product Does
The hose joins designated connections within the water-cooling supply circuit. Its role is to carry coolant between those connections, supporting circulation and temperature management. OE Match develops replacement components around Porsche applications, with specification review and sample evaluation forming part of its approval process.
Functions
- Carries coolant along the designated supply route.
- Links the relevant cooling-circuit connections.
- Supports a sealed fluid path when properly fitted.
Technical Details
- Brand: OE Match
- Component: coolant supply hose.
- Supplied part reference: 99710674006
- Additional catalogue references: 99710674004 and 99710674005.
Symptoms of Fault
- Wetness or seepage at either connection.
- A falling coolant level or dashboard level alert.
- A sweet smell or deposits near the hose.
- Temperature readings higher than usual.
- Bulging, splits, hardened areas or unusually soft sections.
- Gurgling associated with low coolant or trapped air.
Why Replacement Matters
Repeated heating and cooling, pressure, vibration and contamination can weaken a hose over time. Renew it when inspection confirms deterioration or identifies it as the leak source. A small seep can develop into substantial fluid loss, so investigate recurring level drops rather than relying on repeated top-ups.
During related cooling repairs, inspect adjoining pipes, fittings, retainers and seals. Check the hose routing and connection security, then refill and bleed according to the vehicle-specific procedure.
FAQs
How should a suspected leak be confirmed?
A cooling-system pressure test and inspection of the hose connections can help distinguish hose leakage from nearby component faults.
Can coolant collect without leaving a puddle?
Yes. Fluid may collect on an undertray or evaporate, leaving deposits rather than obvious drips.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710674006
99710674006
99710674004
99710674005
The product you are viewing cross references to these numbers
Price: £48.50
In stock
Vehicle Group
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Water pipe. RETURN LINE.
Fits:
Porsche 987 Boxster MKI 2005-08
Porsche 987 Boxster MKII 2009-12
Porsche 987C Cayman MKI 2006-08
Porsche 987C Cayman MKII 2009-12
Porsche 997 Carrera 3.6L / 3.8L MKI 2005-08 COUPE / CABRIO
Porsche 997 Carrera 3.6L / 3.8L MKII 2009-12 COUPE / CABRIO / TARGA
Porsche 997 TURBO / TURBO S / GT2 / GT2 RS 2007>>
Porsche 997 GT3 2007-11
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710672003
The product you are viewing cross references to these numbers
Fits:
Porsche 987 Boxster MKI 2005-08
Porsche 987 Boxster MKII 2009-12
Porsche 987C Cayman MKI 2006-08
Porsche 987C Cayman MKII 2009-12
Porsche 997 Carrera 3.6L / 3.8L MKI 2005-08 COUPE / CABRIO
Porsche 997 Carrera 3.6L / 3.8L MKII 2009-12 COUPE / CABRIO / TARGA
Porsche 997 TURBO / TURBO S / GT2 / GT2 RS 2007>>
Porsche 997 GT3 2007-11
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710672003
99710672003
99710672001
99710672002
The product you are viewing cross references to these numbers
Price: £77.89
In stock
Vehicle Group
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Water pipe. RETURN LINE.
Fits:
Porsche 987 Boxster MKI 2005-08
Porsche 987 Boxster MKII 2009-12
Porsche 987C Cayman MKI 2006-08
Porsche 987C Cayman MKII 2009-12
Porsche 997 Carrera 3.6L / 3.8L MKI 2005-08 COUPE / CABRIO
Porsche 997 Carrera 3.6L / 3.8L MKII 2009-12 COUPE / CABRIO / TARGA
Porsche 997 TURBO / TURBO S / GT2 / GT2 RS 2007>>
Porsche 997 GT3 2007-11
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710672003
The product you are viewing cross references to these numbers
Fits:
Porsche 987 Boxster MKI 2005-08
Porsche 987 Boxster MKII 2009-12
Porsche 987C Cayman MKI 2006-08
Porsche 987C Cayman MKII 2009-12
Porsche 997 Carrera 3.6L / 3.8L MKI 2005-08 COUPE / CABRIO
Porsche 997 Carrera 3.6L / 3.8L MKII 2009-12 COUPE / CABRIO / TARGA
Porsche 997 TURBO / TURBO S / GT2 / GT2 RS 2007>>
Porsche 997 GT3 2007-11
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710672003
99710672003
99710672001
99710672002
The product you are viewing cross references to these numbers
Price: £42.50
Arriving soon
Also found on these pages
About Coolant Hoses - Centre Section
Coolant Hoses – Centre Section | Reliable Cooling for Porsche Performance
The centre section coolant hoses are vital components of your Porsche’s engine cooling system, responsible for circulating coolant between the front and rear of the vehicle. These hoses maintain consistent coolant flow through the radiator and engine, ensuring optimal temperature regulation and preventing overheating — essential for both performance and longevity.
At Design911, we supply a full range of genuine and high-quality coolant hoses in the centre section for Porsche models including 911, Boxster, Cayman. Each hose is engineered to deliver factory-accurate fitment, high heat resistance, and long-lasting durability under the extreme pressures of Porsche’s high-performance cooling systems.
What Do Centre Section Coolant Hoses Do?
Coolant hoses act as the lifelines of your Porsche’s cooling
system. The centre section hoses connect key parts of the cooling
circuit, helping to:
- Transfer
coolant between the engine, radiator, and water pump.
- Regulate
engine temperature during all driving conditions.
- Maintain
system pressure for consistent cooling performance.
- Prevent overheating and protect the engine from thermal stress.
Their design ensures smooth, efficient coolant flow — especially important in Porsche models with long mid- or rear-engine coolant routing systems.
Why Do Coolant Hoses Fail?
Over time, coolant hoses are exposed to constant pressure,
high temperatures, and fluid corrosion. This can lead to:
- Rubber degradation or cracking from heat cycling.
- Coolant leaks due to worn hose ends or clamps.
- Swelling or soft spots caused by chemical breakdown.
- Abrasion damage from contact with nearby components.
- Age-related hardening, reducing flexibility and sealing strength.
Common signs of hose failure include visible cracks, coolant puddles under the car, engine temperature fluctuations, or low coolant levels.
Why Replace Faulty Coolant Hoses?
A weakened or leaking coolant hose can quickly lead to overheating, engine damage, or complete coolant loss. Replacing worn hoses ensures your Porsche’s cooling system operates safely and efficiently.
Benefits of replacement include:
- Restored, leak-free coolant circulation.
- Improved temperature control and engine protection.
- Prevention of overheating and costly repairs.
- Manufacturer-quality construction and precision fit.
All hoses in this range are made from high-performance rubber compounds and reinforced materials, designed to meet exacting standards for flexibility, strength, and heat resistance.
You may also like
Popular Models
