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.
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
The Genuine Porsche Oil Filter Housing O-Ring 99970110050 is a replacement sealing ring designed to provide a secure, oil-tight seal at the oil filter housing on compatible Porsche applications.
Fits:
- Porsche 911 1965-1968 2.0L
- Porsche 911 1970-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Diagram Ref No 9
Although it is a small component, the O-ring plays an important role in the engine lubrication system. It prevents engine oil from escaping at the sealed connection and helps the lubrication system maintain its integrity during operation.
Repeated exposure to hot engine oil, pressure and temperature cycles can eventually cause the original O-ring to harden, flatten, crack or lose elasticity. Once this happens, oil can begin to seep or leak from the oil filter housing area.
What This Product Does:
The O-ring creates a seal between mating surfaces within the oil filter housing assembly.
When installed correctly, the O-ring is compressed to close the small clearance between components through which pressurised engine oil could otherwise escape.
A correctly functioning oil filter housing O-ring helps:
- Prevent engine oil leakage
- Maintain a secure oil filter housing seal
- Keep oil contained within the lubrication system
- Prevent oil contamination of surrounding engine components
- Support correct lubrication-system operation
- Maintain a clean and dry oil filter housing area
The correct dimensions and sealing specification are important because an incorrectly sized O-ring may leak even if it appears similar to the original component.
Symptoms Of Wear Or Failure:
O-rings gradually deteriorate through age, heat and repeated compression.
Common symptoms of a worn oil filter housing O-ring include:
- Engine oil leaking around the oil filter housing
- Oil seepage around the sealed joint
- Damp or oily residue on surrounding components
- Oil collecting beneath the engine
- Gradual reduction in engine oil level
- Burning-oil smell if leaked oil reaches hot components
- O-ring becoming hard or brittle
- Cracking or splitting
- Flattened sealing surface
- Cuts, nicks or deformation
- Leakage appearing after oil filter servicing
A minor seep can gradually develop into a more significant leak as the seal continues to deteriorate.
Why Replacement Matters:
Engine oil is essential for lubricating and protecting internal engine components.
A leaking oil filter housing seal can result in gradual oil loss and contamination of surrounding components. If a significant leak is ignored and the engine oil level becomes too low, lubrication can be compromised.
Replacing a worn O-ring helps restore:
- A secure oil-tight connection
- Proper oil filter housing sealing
- Engine oil retention
- A cleaner engine compartment
- Correct lubrication-system integrity
- Protection against progressive oil loss
Addressing an oil leak promptly can also make it easier to identify any additional leaks elsewhere on the engine.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970110050
The product you are viewing cross references to these numbers
- 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 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
- 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 R 4.0L (500 Bhp) 2016
- 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 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- 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
Sits on oil filter housing.
Fits:
Porsche 981 Boxster
Porsche 981C Cayman
Porsche 987.2 Boxster 2010-2012 (10bar)
Porsche 987C.2 Cayman 2010-2012 (10bar)
Porsche 997.2 Carrera
Porsche 997TT.2 Turbo
Porsche 991.1 Carrera
Porsche 991.2 Carrera
Porsche 991 R / GT3 / GT3 RS (on crankcase)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94860621300
The product you are viewing cross references to these numbers
- 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 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 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 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
Fits:
Porsche 987.2 Boxster / Boxster S 2009-12
Porsche 987C.2 Cayman / Cayman S 2009-12
Porsche 981 Boxster / Boxster S / Boxster Spyder 2014-16
Porsche 981C Cayman / Cayman S / Cayman GT4 2014-16
Porsche 982 Boxster GTS 2017-2021
Porsche 982SP Boxster Spyder 2019-2021
Porsche 982C Cayman GTS 2017-2021
Porsche 982C Cayman GT4 2019-2021
Click 'Zoom in' for large parts diagram.
Diagram ref no 28
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB115475
The product you are viewing cross references to these numbers
- 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 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
- 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 R 4.0L (500 Bhp) 2016
- 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 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- 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
Sits on oil filter housing.
Fits:
Porsche 981 Boxster
Porsche 981C Cayman
Porsche 987.2 Boxster 2010-2012 (10bar)
Porsche 987C.2 Cayman 2010-2012 (10bar)
Porsche 997.2 Carrera
Porsche 997TT.2 Turbo
Porsche 991.1 Carrera
Porsche 991.2 Carrera
Porsche 991 R / GT3 / GT3 RS (on crankcase)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94860621300
The product you are viewing cross references to these numbers