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Porsche > 911 & 912 (1965-1989) > 911 1975-1977 3.0L Turbo (930) > Engine Rebuild Parts > Oil System Parts >

Oil Pressure Relief Valve

Oil Pressure Relief Valve

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DISPLAYING 1 to 6 (of 6 products)
Oil pressure relief valve kit. Porsche 911 / 964 / 993 - 93010753301, 99906402601, 90012310630, 93010753101, 90110753101, 91110751200, 99906402602, 90012307130, 90110753100
1
Oil pressure relief valve kit. Porsche 911 / 964 / 993
91110751200KIT
Product Information
Product Information
Oil pressure relief valve kit. 

Kit Includes
Piston x 2
Spring - long x 1

Spring - short x 1
Guide sleeve x 1
Sealing washer x 2
Screw plug x 2

Fits:
Porsche 911 - 1970 to 1978 - When oil pressure bypass mod carried out
Porsche 911 / 930 - 1978 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91110751200KIT
93010753301
99906402601
90012310630
93010753101
90110753101
91110751200
99906402602
90012307130
90110753100

The product you are viewing cross references to these numbers
Oil pressure relief piston. Porsche 911 / 964 / 993 / 996 / 997 - 91110751200
4
Oil pressure relief piston. Porsche 911 / 964 / 993 / 996 / 997
Special Order item
91110751200
Product Information
Product 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Related, superseded, cross reference or alternative numbers for comparison.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
91110751200

The product you are viewing cross references to these numbers
Oil pressure relief plug extractor Porsche 911 / 964 / 993 / 996 / 997 - SR108
3
Oil pressure relief plug extractor Porsche 911 / 964 / 993 / 996 / 997
SR108
Product Information
Product Information
Oil pressure relief plug extractor Porsche 911 / 964 / 993 / 996 / 997

Tolerance between the pressure relief plug and its galley are very close, and the slightest bit of gunk, corrosion, or bur will cause the plug to freeze up in the oil passage. A magnet is rarely powerful enough to overcome the seized plug, and leaving it in place is never an option.
Using STOMSKI RACING's Oil Pressure Relief Plug Extractor makes the task of removing the stuck plug a breeze, and allows you to ensure clean oil passages, and a properly operating bypass system.

The collet-based tool slides easily into the open end of the seized plug and a simple turn or two of the internal socket head cap screw expands the tool, grasping the plug to ensure easy removal.

Anodized Aluminum.
Oil pressure relief plug. Porsche 356 / 912 / 911 / 914 - 9400038, 99906401002
3
Oil pressure relief plug. Porsche 356 / 912 / 911 / 914
99906401002/1
Product Information
Product Information
Oil pressure relief plug.

Fits:
Porsche 356B / 356C
Porsche 912
Porsche 911 65-77
Porsche 914

Diagram ref no 54

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99906401002
9400038
99906401002

The product you are viewing cross references to these numbers
Oil Pressure Relief Screw Plug. Porsche 911 / 964 / 993 / 996T / 997T - 99906402601
4
Oil Pressure Relief Screw Plug. Porsche 911 / 964 / 993 / 996T / 997T
Special Order item
99906402601
Product Information
Product 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
99906402601

The product you are viewing cross references to these numbers
Oil pressure relief screw plug. Porsche 911 / 964 / 993 / 996T / 997T - 99906402601, 31309765
4
Oil pressure relief screw plug. Porsche 911 / 964 / 993 / 996T / 997T
99906402601/1
Product Information
Product 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
99906402601
31309765

The product you are viewing cross references to these numbers
DISPLAYING 1 to 6 (of 6 products)
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About Oil Pressure Relief Valve

An oil pressure relief valve is a critical engine component designed to regulate and maintain optimal oil pressure within your vehicle’s lubrication system. By controlling excess oil pressure and redirecting flow when necessary, this valve helps prevent engine damage, reduces wear on internal components, and ensures consistent lubrication under all driving conditions.

At Design911, we supply a comprehensive range of high-quality oil pressure relief valves engineered for performance, durability, and precise pressure control. Suitable for a wide range of vehicles, including performance and Porsche applications, these valves are essential for maintaining engine reliability, especially under high load, high RPM, or track driving conditions.

Whether you're replacing a worn valve, upgrading for improved oil system efficiency, or maintaining your engine for long-term reliability, our range includes OEM and performance-grade oil pressure relief valves designed to meet or exceed manufacturer specifications.

 

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