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Porsche // 993 (911) (1994-1998) // 993 (911) GT2 1994-97
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Oil pressure relief screw plug. Porsche 911 / 964 / 993 / 996T / 997T - 99906402601
99906402601/1
Vehicle Group
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- 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 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Oil pressure relief screw plug. M 18 x 1.5
This OE Match oil pressure relief screw plug is a replacement sealing plug for the engine oil pressure relief system on selected Porsche 911, 964, 993, 996 Turbo, and 997 Turbo models. It is designed to match the original-style fitment and function, helping seal the oil pressure relief bore securely.
Sold individually
Fits:
Porsche 911 / 930 1971 - 1989
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Porsche 996 Turbo/GT2 2001 - 2005
Porsche 997 Turbo/GT2/GT2 RS 2005 - 2012
Porsche 996 GT3 / 997 GT3 1999>>
Diagram ref no 12
The oil pressure relief screw plug closes and seals the access point for the oil pressure relief valve assembly. The pressure relief system helps regulate engine oil pressure by allowing excess pressure to bypass when required. A correctly sealing screw plug is important for maintaining oil system integrity and preventing oil leaks.
Functions
• Seals the oil pressure relief valve access bore
• Helps maintain correct engine oil system sealing
• Supports proper oil pressure relief valve operation
• Helps prevent engine oil leaks from the plug area
• Replaces damaged, worn, rounded, corroded, or leaking original plugs
• Suitable for engine oil system repair, rebuild, or maintenance
• OE Match replacement for Porsche lubrication system service.
Why Replace This Part?
Oil pressure relief screw plugs can become damaged, rounded, corroded, worn, or difficult to seal after repeated removal. The sealing face or threads may also become compromised during engine repairs or oil pressure relief valve service. A faulty plug can cause oil seepage, poor sealing, or service difficulty. Replacing the plug helps restore a secure seal and supports reliable oil pressure relief system function.
When to Replace This Part
• The original screw plug is damaged, rounded, corroded, or worn
• Oil is leaking or seeping from the pressure relief plug area
• The oil pressure relief valve is being serviced or replaced
• The engine case or oil system is being rebuilt
• The plug threads or sealing face are no longer in good condition
• The plug has been removed multiple times and should not be reused
• Preventative replacement is being carried out during engine maintenance
Where it fits on the car
This screw plug fits in the engine oil pressure relief valve area. It seals the access point for the oil pressure relief system and forms part of the engine lubrication circuit.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906402601
The product you are viewing cross references to these numbers
This OE Match oil pressure relief screw plug is a replacement sealing plug for the engine oil pressure relief system on selected Porsche 911, 964, 993, 996 Turbo, and 997 Turbo models. It is designed to match the original-style fitment and function, helping seal the oil pressure relief bore securely.
Sold individually
Fits:
Porsche 911 / 930 1971 - 1989
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Porsche 996 Turbo/GT2 2001 - 2005
Porsche 997 Turbo/GT2/GT2 RS 2005 - 2012
Porsche 996 GT3 / 997 GT3 1999>>
Diagram ref no 12
The oil pressure relief screw plug closes and seals the access point for the oil pressure relief valve assembly. The pressure relief system helps regulate engine oil pressure by allowing excess pressure to bypass when required. A correctly sealing screw plug is important for maintaining oil system integrity and preventing oil leaks.
Functions
• Seals the oil pressure relief valve access bore
• Helps maintain correct engine oil system sealing
• Supports proper oil pressure relief valve operation
• Helps prevent engine oil leaks from the plug area
• Replaces damaged, worn, rounded, corroded, or leaking original plugs
• Suitable for engine oil system repair, rebuild, or maintenance
• OE Match replacement for Porsche lubrication system service.
Why Replace This Part?
Oil pressure relief screw plugs can become damaged, rounded, corroded, worn, or difficult to seal after repeated removal. The sealing face or threads may also become compromised during engine repairs or oil pressure relief valve service. A faulty plug can cause oil seepage, poor sealing, or service difficulty. Replacing the plug helps restore a secure seal and supports reliable oil pressure relief system function.
When to Replace This Part
• The original screw plug is damaged, rounded, corroded, or worn
• Oil is leaking or seeping from the pressure relief plug area
• The oil pressure relief valve is being serviced or replaced
• The engine case or oil system is being rebuilt
• The plug threads or sealing face are no longer in good condition
• The plug has been removed multiple times and should not be reused
• Preventative replacement is being carried out during engine maintenance
Where it fits on the car
This screw plug fits in the engine oil pressure relief valve area. It seals the access point for the oil pressure relief system and forms part of the engine lubrication circuit.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906402601
99906402601
31309765
99906402602
99611302154
99611302254
99906401602
The product you are viewing cross references to these numbers
Price: £7.25
In stock
Related products
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- 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 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Oil pressure relief piston.
Fits:
Porsche 911/930 1974-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo/GT2 2001-05
Porsche 997 Turbo/GT2 2005 >>
Porsche 996 GT3 / 997 GT3
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110751200
The product you are viewing cross references to these numbers
Fits:
Porsche 911/930 1974-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo/GT2 2001-05
Porsche 997 Turbo/GT2 2005 >>
Porsche 996 GT3 / 997 GT3
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110751200
91110751200
The product you are viewing cross references to these numbers
Price: £21.13
In stock
Vehicle Group
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- 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 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Oil Pressure Relief Screw Plug. M 18 x 1.5
Fits:
Porsche 911 / 930 1971-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo/GT2 2001-05
Porsche 997 Turbo/GT2/GT2 RS 2005-12
Porsche 996 GT3 / 997 GT3 1999>>
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906402601
The product you are viewing cross references to these numbers
Fits:
Porsche 911 / 930 1971-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo/GT2 2001-05
Porsche 997 Turbo/GT2/GT2 RS 2005-12
Porsche 996 GT3 / 997 GT3 1999>>
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906402601
99906402601
99611302154
99611302254
99906401602
99906402602
The product you are viewing cross references to these numbers
Price: £13.35
In stock
Vehicle Group
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- 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 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Crankcase Piston Pressure Spring.
Fits:
Porsche 993 1989-94
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Porsche 997 Turbo/GT2 2007-09
Porsche 997 Turbo/GT2 RS 2010-13
Porsche 997 GT3 2007-11
This product supersedes Porsche's old part numbers:
- 90110753100
Diagram ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110753101
The product you are viewing cross references to these numbers
Fits:
Porsche 993 1989-94
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Porsche 997 Turbo/GT2 2007-09
Porsche 997 Turbo/GT2 RS 2010-13
Porsche 997 GT3 2007-11
This product supersedes Porsche's old part numbers:
- 90110753100
Diagram ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110753101
90110753101
The product you are viewing cross references to these numbers
Price: £7.55
In stock
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Guide Sleeve For Oil Pressure Relief Valve.
Fits:
Porsche 911 1978 - 1989
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Porsche 996 Turbo/GT2 2001 - 2005
Porsche 997 Turbo/GT2 2007 - 2009
Porsche 997 Turbo/GT2 RS 2010 - 2013
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010753302
The product you are viewing cross references to these numbers
Fits:
Porsche 911 1978 - 1989
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Porsche 996 Turbo/GT2 2001 - 2005
Porsche 997 Turbo/GT2 2007 - 2009
Porsche 997 Turbo/GT2 RS 2010 - 2013
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010753302
93010753301
93010753300
93010753302
The product you are viewing cross references to these numbers
Price: £14.24
In stock