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- 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 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- 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
- 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 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 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- 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 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 (300Bhp)
- Porsche Cayman 718 2.0L PDK (300Bhp)
- Porsche Cayman S 718 2.5L Manual (350Bhp)
- Porsche Cayman S 718 2.5L PDK (350Bhp)
This small but critical component creates a secure, leak-proof seal between the oil drain plug and the engine’s oil pan to prevent engine oil seepage. It is sized and manufactured to match the original Porsche specification for a reliable fit and sealing performance.
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Fits:
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 981 Boxster
Porsche 982 (718) Boxster
Porsche 987C Cayman
Porsche 981C Cayman
Porsche 982 (718) Cayman
Porsche 996
Porsche 997
Porsche 991
Diagram ref no 24
This premium OE Match seal ring (also referred to as a crush washer or gasket) is engineered to the correct inner/outer diameters and material thickness used by Porsche on multiple model platforms.
The seal ring is ideal for use during every oil change where the drain plug has been removed and reinstalled, and whenever the original ring shows signs of compression set, distortion, corrosion, or damage. This OE Match version delivers a direct fit and consistent sealing performance comparable to the factory-specified part.
The oil drain plug seal ring sits between the oil drain plug head and the engine oil pan surface. When the drain plug is torqued to specification, the seal ring compresses slightly to form a fluid-tight barrier, preventing engine oil from escaping the sump under pressure or vibration. A proper seal helps maintain correct oil levels and prevents messy leaks on the road or in the garage.
Function: Installed each time the engine oil drain plug is removed, the seal ring is “crushed” into place during installation, creating an even seal around the drain hole. Its function is critical because even small oil leaks can lead to reduced oil levels, potential engine damage, and contamination of suspension or exhaust components. The OE Match ring reproduces the original’s sealing surface characteristics so that torque and compression behavior remain within factory-designed tolerances.
Oil drain plug seal rings are single-use sealing components that deform each time the plug is installed. Reusing an old or compressed ring can lead to oil drips or leaks, especially under heat cycling and vibration. A proper OE Match seal ring ensures a dependable oil-tight seal, helping to preserve engine lubrication integrity, avoid oil loss, and protect against environmental contamination.
When to replace:
• Every time the **oil drain plug is removed”
• If existing seal ring shows cracks, flattening, or corrosion
• When performing routine oil and filter service
• After discovering minor oil seepage at the drain plug
• During engine maintenance or oil pan removal
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90012310630
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