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Oil pump seal ring. Porsche 911 / 964 / 993 / 996 / 997 / 914 - 99970417350
99970417350/1
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- 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 2007-09
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 914 (1970-1976)
Information
Oil pump seal ring. 19.5 x 26
Large oil pump seal ( 19.5 x 26 mm) designed to exact Porsche specifications, this seal ensures a perfect fit between the oil pump and the engine block.
Sold each.
Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo / GT2 2001-05
Porsche 996 GT3 3.6L 1999-05
Porsche 997.1 Turbo 3.6L 2007-10
Porsche 997.2 Turbo 3.6L 2011-13
Porsche 997 GT3 3.6L / 3.8L / 4.0L 2007-13
Diagram ref no 3
This component is an oil seal, often referred to as the “large oil pump / oil cooler seal.” Its job is to prevent oil from leaking at the joint between the oil pump (or oil cooler housing) and the engine block or other mating surface. It maintains pressure integrity within the oil circuit, preventing external leakage and loss of oil. A proper oil seal helps protect surrounding engine components (gaskets, housings) from oil contamination and keeps the lubrication system efficient.
Location: Mounted at the interface of the oil pump or oil cooler to the engine block — typically around a rotating shaft or coupling.
Function: Provides a leak-proof seal for high-pressure oil flow between engine and pump housing
Installation: Direct-fit OE replacement — replace whenever the pump or cooler is removed
Maintenance Tip: Always replace during engine rebuilds or if any oil seepage is detected near the cooler or pump area
Why replacement matters:
• Over time, the original seal can harden, crack, shrink, or wear due to heat, pressure cycles, vibration, and exposure to oil and contaminants.
• A compromised seal allows oil to leak, reducing oil level, lowering system pressure, and potentially causing damage to engine internals.
• Even small oil leaks can lead to oil contamination of belts, hoses, or nearby components, making clean-up costly and potentially damaging.
• Replacing with a high-quality replacement seal restores full sealing integrity, ensuring proper oil circuit function, preventing leaks, and protecting the engine’s internals.
When to replace:
• Whenever the oil pump or oil cooler is removed for maintenance, repair, or rebuild — always replace the seal rather than reuse an old one.
• If you detect oil seepage or external leaks near the pump / cooler area, or during engine inspections.
• During major engine overhauls, rebuilds, or upgrades, especially in older or high-mileage engines.
• As preventive maintenance in high-stress or high-boost applications, where oil pressure and temperature are elevated.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970417350
The product you are viewing cross references to these numbers
Large oil pump seal ( 19.5 x 26 mm) designed to exact Porsche specifications, this seal ensures a perfect fit between the oil pump and the engine block.
Sold each.
Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo / GT2 2001-05
Porsche 996 GT3 3.6L 1999-05
Porsche 997.1 Turbo 3.6L 2007-10
Porsche 997.2 Turbo 3.6L 2011-13
Porsche 997 GT3 3.6L / 3.8L / 4.0L 2007-13
Diagram ref no 3
This component is an oil seal, often referred to as the “large oil pump / oil cooler seal.” Its job is to prevent oil from leaking at the joint between the oil pump (or oil cooler housing) and the engine block or other mating surface. It maintains pressure integrity within the oil circuit, preventing external leakage and loss of oil. A proper oil seal helps protect surrounding engine components (gaskets, housings) from oil contamination and keeps the lubrication system efficient.
Location: Mounted at the interface of the oil pump or oil cooler to the engine block — typically around a rotating shaft or coupling.
Function: Provides a leak-proof seal for high-pressure oil flow between engine and pump housing
Installation: Direct-fit OE replacement — replace whenever the pump or cooler is removed
Maintenance Tip: Always replace during engine rebuilds or if any oil seepage is detected near the cooler or pump area
Why replacement matters:
• Over time, the original seal can harden, crack, shrink, or wear due to heat, pressure cycles, vibration, and exposure to oil and contaminants.
• A compromised seal allows oil to leak, reducing oil level, lowering system pressure, and potentially causing damage to engine internals.
• Even small oil leaks can lead to oil contamination of belts, hoses, or nearby components, making clean-up costly and potentially damaging.
• Replacing with a high-quality replacement seal restores full sealing integrity, ensuring proper oil circuit function, preventing leaks, and protecting the engine’s internals.
When to replace:
• Whenever the oil pump or oil cooler is removed for maintenance, repair, or rebuild — always replace the seal rather than reuse an old one.
• If you detect oil seepage or external leaks near the pump / cooler area, or during engine inspections.
• During major engine overhauls, rebuilds, or upgrades, especially in older or high-mileage engines.
• As preventive maintenance in high-stress or high-boost applications, where oil pressure and temperature are elevated.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970417350
99970417350
The product you are viewing cross references to these numbers
£3.43
Now £3.09
In stock
Related products
Vehicle Group
- Porsche 356 1950-55
- Porsche 356A 1955-59
Information
Oil pump housing.
This is a brand new CNC machined from high quality alloy. Oil pump housing is for the 3 piece engine with the separate oil pump. This oil pump is also usable in the 356 Pre-A 2 piece engine.
Fits:
Porsche 356 Pre-A / 356 A
Click 'Zoom in' for large parts diagram.
Diagram ref no 34
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
53907110
The product you are viewing cross references to these numbers
This is a brand new CNC machined from high quality alloy. Oil pump housing is for the 3 piece engine with the separate oil pump. This oil pump is also usable in the 356 Pre-A 2 piece engine.
Fits:
Porsche 356 Pre-A / 356 A
Click 'Zoom in' for large parts diagram.
Diagram ref no 34
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
53907110
53907110
The product you are viewing cross references to these numbers
Price: £395.56
Orderable
Vehicle Group
- Porsche 356 1950-55
- Porsche 356A 1955-59
Information
Oil pump complete.
Oil pump complete 356 A-T1. This is a brand new Part CNC machined from high quality alloy. Oil pump is for the 3 piece engine with the separate oil pump. This oil pump is also usable in the 356 Pre-A 2 piece engine.
Drive shaft and gears are new produced parts.
Fits:
Porsche 356 A T1 / 356 Pre-A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
53907120
The product you are viewing cross references to these numbers
Oil pump complete 356 A-T1. This is a brand new Part CNC machined from high quality alloy. Oil pump is for the 3 piece engine with the separate oil pump. This oil pump is also usable in the 356 Pre-A 2 piece engine.
Drive shaft and gears are new produced parts.
Fits:
Porsche 356 A T1 / 356 Pre-A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
53907120
53907120
53907012
The product you are viewing cross references to these numbers
Price: £658.41
Orderable
Vehicle Group
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
Information
Oil pump pinion pressure screw.
This screw is for the oil pump with de 24 mm (the small Pump) gear wheels. The tip of this screw is 3.4 mm long. CNC machined and zinc plated.
Fits:
Porsche 356 Pre-A
Porsche 356 A
Porsche 356 B-T5
Click 'Zoom in' for large parts diagram.
Diagram ref no 53
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
36905703
The product you are viewing cross references to these numbers
This screw is for the oil pump with de 24 mm (the small Pump) gear wheels. The tip of this screw is 3.4 mm long. CNC machined and zinc plated.
Fits:
Porsche 356 Pre-A
Porsche 356 A
Porsche 356 B-T5
Click 'Zoom in' for large parts diagram.
Diagram ref no 53
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
36905703
36905703
The product you are viewing cross references to these numbers
Price: £47.53
Orderable