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Porsche // 996 (911) (1997-2005) // 996 C4 3.4L 1997-08/01
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Water radiator top hose intake top, LEFT. Porsche 996 Tiptronic / 986 Tiptronic / 986 S 3.2L - 99610666558
99610666558/1
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 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
Information
Water radiator top hose, Intake (Upper Left).
OE Match upper-left radiator coolant hose (intake/top hose) designed to replicate the factory hose routing and connections on Tiptronic-equipped 996 and 986 models.
Fits:
Porsche 996 C2 / C4 1998 - 2005 TIPTRONIC
Porsche 986 Boxster 2.5L / 2.7L 1997 - 2004 TIPTRONIC
Porsche 986 Boxster S 3.2L 2000 – 2004
This product supersedes Porsche's old part numbers:
- 99610666555
- 99610666557
Diagram Ref No 8.
This hose transports coolant through the upper (intake) side of the left radiator circuit, supporting efficient heat rejection and stable engine operating temperature.
Function: This hose links the radiator coolant plumbing on the upper-left side and is shaped to maintain correct flow while clearing bodywork, brackets, and neighbouring hoses. Correct fitment is important to prevent restriction, rubbing, and leak paths at the hose ends as the system expands and contracts with temperature.
Cooling hoses are wear items. A weakened upper hose can split or leak under pressure, leading to coolant loss and overheating risk. Replacing with an OE Match hose restores secure sealing and correct routing, helping protect the engine and keep the cooling system operating as intended.
When to replace:
• Visible coolant seepage at hose ends or along the hose body
• Hose feels overly soft, swollen, brittle, or cracked
• Coolant smell/steam from the front of the car
• Cooling system refresh (radiators/thermostat/water pump service)
• Preventatively on higher-mileage 996/986 models
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610666558
The product you are viewing cross references to these numbers
OE Match upper-left radiator coolant hose (intake/top hose) designed to replicate the factory hose routing and connections on Tiptronic-equipped 996 and 986 models.
Fits:
Porsche 996 C2 / C4 1998 - 2005 TIPTRONIC
Porsche 986 Boxster 2.5L / 2.7L 1997 - 2004 TIPTRONIC
Porsche 986 Boxster S 3.2L 2000 – 2004
This product supersedes Porsche's old part numbers:
- 99610666555
- 99610666557
Diagram Ref No 8.
This hose transports coolant through the upper (intake) side of the left radiator circuit, supporting efficient heat rejection and stable engine operating temperature.
Function: This hose links the radiator coolant plumbing on the upper-left side and is shaped to maintain correct flow while clearing bodywork, brackets, and neighbouring hoses. Correct fitment is important to prevent restriction, rubbing, and leak paths at the hose ends as the system expands and contracts with temperature.
Cooling hoses are wear items. A weakened upper hose can split or leak under pressure, leading to coolant loss and overheating risk. Replacing with an OE Match hose restores secure sealing and correct routing, helping protect the engine and keep the cooling system operating as intended.
When to replace:
• Visible coolant seepage at hose ends or along the hose body
• Hose feels overly soft, swollen, brittle, or cracked
• Coolant smell/steam from the front of the car
• Cooling system refresh (radiators/thermostat/water pump service)
• Preventatively on higher-mileage 996/986 models
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610666558
99610666557
99610666558
99610666555
The product you are viewing cross references to these numbers
Price: £29.00
In stock
Also found on these pages
Related products
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 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
Information
Water Radiator Top Hose Intake Top LEFT.
Fits:
Porsche 996 C2 / C4 1998-05 TIPTRONIC
Porsche 986 Boxster 2.5L / 2.7L 1997-04 TIPTRONIC
Porsche 986 Boxster S 3.2L
This product supersedes Porsche's old part numbers:
- 99610666555
- 99610666557
Click picture for large parts diagram.
Diagram Ref No 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610666558
The product you are viewing cross references to these numbers
Fits:
Porsche 996 C2 / C4 1998-05 TIPTRONIC
Porsche 986 Boxster 2.5L / 2.7L 1997-04 TIPTRONIC
Porsche 986 Boxster S 3.2L
This product supersedes Porsche's old part numbers:
- 99610666555
- 99610666557
Click picture for large parts diagram.
Diagram Ref No 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610666558
99610666557
99610666558
99610666555
The product you are viewing cross references to these numbers
Price: £63.71
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 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
Information
Water radiator top hose LEFT.
Fits:
Porsche 996 C2 / C4 1998-05 MANUAL (NOT C4S)
This product supersedes Porsche's old part numbers:
- 99610662157
Click 'Zoom in' for large parts diagram.
Diagram ref no 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610662158
The product you are viewing cross references to these numbers
Fits:
Porsche 996 C2 / C4 1998-05 MANUAL (NOT C4S)
This product supersedes Porsche's old part numbers:
- 99610662157
Click 'Zoom in' for large parts diagram.
Diagram ref no 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610662158
99610662158
99610662157
The product you are viewing cross references to these numbers
Price: £54.96
Orderable
Vehicle Group
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Information
Water radiator top hose RIGHT.
Fits:
Porsche 996 C2 / C4 1998-05
Porsche 996 C4S 1998-05
Porsche 986 Boxster S 3.2L 1997-04
This product supersedes Porsche's old part numbers:
- 99610662252
- 99610662254
Click pictrue for large parts diagram.
Diagram Ref No 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610662255
The product you are viewing cross references to these numbers
Fits:
Porsche 996 C2 / C4 1998-05
Porsche 996 C4S 1998-05
Porsche 986 Boxster S 3.2L 1997-04
This product supersedes Porsche's old part numbers:
- 99610662252
- 99610662254
Click pictrue for large parts diagram.
Diagram Ref No 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610662255
99610662255
99610662252
99610662254
The product you are viewing cross references to these numbers
Price: £35.58
Orderable
Vehicle Group
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
Information
Water radiator bottom hose return, LEFT.
Fits:
Porsche 996 C2 / C4 1998 - 2005
Porsche 986 Boxster S 3.2L 1997 - 2004
This product supersedes Porsche's old part numbers: 99610662554, 99610662557
Diagram ref no 9.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610662558
The product you are viewing cross references to these numbers
Fits:
Porsche 996 C2 / C4 1998 - 2005
Porsche 986 Boxster S 3.2L 1997 - 2004
This product supersedes Porsche's old part numbers: 99610662554, 99610662557
Diagram ref no 9.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610662558
99610662558
99610662557
99610662554
The product you are viewing cross references to these numbers
Price: £42.68
Orderable