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Rear main oil seal - crank rear. Porsche 911 78-89 / 930 - 99911342641
99911342641/1::1
Vehicle Group
- 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)
Information
Rear main oil seal - crank rear.
Fitting Position: Transmission End
Inner Diameter: 90 mm, Outer diameter: 110 mm, Width: 12 mm
Radial Shaft Seal Design.
Fits:
Porsche 911 3.0L 1978 - 1983
Porsche 911 3.2L 1984 - 1989
Porsche 930 Turbo 1975 - 1989
Diagram Ref No 33
The rear main oil seal fits at the rear of the crankshaft where it passes through the engine case. It helps retain engine oil inside the crankcase and prevents oil from leaking into the flywheel, clutch, or transmission bellhousing area.
Functions
• Replaces the rear crankshaft oil seal
• Helps seal the rear of the engine crankshaft
• Helps prevent engine oil leaks from the bellhousing area
• Protects the clutch and flywheel area from oil contamination
• Supports correct crankcase oil retention
• Replaces hardened, worn, split, leaking, or damaged original seals
• OE Match replacement for Porsche 911 and 930 engine service.
Why Replace This Part?
Rear main oil seals are exposed to heat, crankshaft rotation, oil, pressure changes, and age-related wear. Over time, the seal can harden, shrink, crack, wear, or lose sealing ability. A failed rear main seal may cause oil leaks between the engine and gearbox, oil contamination on the clutch, burning oil smells, or visible oil dripping from the bellhousing area. Replacing the seal helps restore a clean, reliable crankshaft seal.
When to Replace This Part
• Oil is leaking from between the engine and gearbox
• Oil drips are visible from the bellhousing area
• The clutch or flywheel is contaminated with oil
• The engine or gearbox has been removed
• The flywheel is being removed or replaced
• The original seal is hardened, worn, split, or leaking
• Preventative replacement is being carried out during clutch or engine service.
Where it fits on the car
This oil seal fits at the rear crankshaft position on Porsche 911 and 930 engines. It sits between the crankshaft and engine case, behind the flywheel area.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911342641
The product you are viewing cross references to these numbers
Fitting Position: Transmission End
Inner Diameter: 90 mm, Outer diameter: 110 mm, Width: 12 mm
Radial Shaft Seal Design.
Fits:
Porsche 911 3.0L 1978 - 1983
Porsche 911 3.2L 1984 - 1989
Porsche 930 Turbo 1975 - 1989
Diagram Ref No 33
The rear main oil seal fits at the rear of the crankshaft where it passes through the engine case. It helps retain engine oil inside the crankcase and prevents oil from leaking into the flywheel, clutch, or transmission bellhousing area.
Functions
• Replaces the rear crankshaft oil seal
• Helps seal the rear of the engine crankshaft
• Helps prevent engine oil leaks from the bellhousing area
• Protects the clutch and flywheel area from oil contamination
• Supports correct crankcase oil retention
• Replaces hardened, worn, split, leaking, or damaged original seals
• OE Match replacement for Porsche 911 and 930 engine service.
Why Replace This Part?
Rear main oil seals are exposed to heat, crankshaft rotation, oil, pressure changes, and age-related wear. Over time, the seal can harden, shrink, crack, wear, or lose sealing ability. A failed rear main seal may cause oil leaks between the engine and gearbox, oil contamination on the clutch, burning oil smells, or visible oil dripping from the bellhousing area. Replacing the seal helps restore a clean, reliable crankshaft seal.
When to Replace This Part
• Oil is leaking from between the engine and gearbox
• Oil drips are visible from the bellhousing area
• The clutch or flywheel is contaminated with oil
• The engine or gearbox has been removed
• The flywheel is being removed or replaced
• The original seal is hardened, worn, split, or leaking
• Preventative replacement is being carried out during clutch or engine service.
Where it fits on the car
This oil seal fits at the rear crankshaft position on Porsche 911 and 930 engines. It sits between the crankshaft and engine case, behind the flywheel area.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911342641
99911342641
99911326440
99911346140
99911342640
The product you are viewing cross references to these numbers
Price: €14.28
Orderable
Related products
Vehicle Group
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
Information
Clutch kit contains:
Clutch plate, Pressure Plate and Release bearing.
Fits:
Porsche 944 / 944 S 2.5L 1981-88
Engine codes: M44.01 / M44.02 / M44.03 / M44.04 / M44.05 / M44.10
Porsche 944 2.7L 1988-89
Engine codes: M44.11 / M44.12
Porsche 944 S2 3.0L 1989-91
Engine codes: M44.41
Porsche 924 TURBO 06.1980 - 10.1986*
Engine codes: M31.03 177Bhp
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411691100
The product you are viewing cross references to these numbers
Clutch plate, Pressure Plate and Release bearing.
Fits:
Porsche 944 / 944 S 2.5L 1981-88
Engine codes: M44.01 / M44.02 / M44.03 / M44.04 / M44.05 / M44.10
Porsche 944 2.7L 1988-89
Engine codes: M44.11 / M44.12
Porsche 944 S2 3.0L 1989-91
Engine codes: M44.41
Porsche 924 TURBO 06.1980 - 10.1986*
Engine codes: M31.03 177Bhp
Porsche 924 S 2.5L 1985-88
Engine codes: M44.07 / M44.08 / M44.09 / M44.10
*NOTE: This kit is not compatible with 924 Turbo models equipped with flywheel part number 93110220601. Some M31.03-code engines were fitted with this shallower flywheel, which can cause fitment issues with this kit.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411691100
3000950057
94411691100
The product you are viewing cross references to these numbers
Price: €643.72
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 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 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 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 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Information
Clutch alignment tool.
This tool is necessary for a professional assemblage of the clutch.
Fits:
For Vehicles with manual transmission
Porsche 911 G (1 of 3 possible variants, this one has 23 teeth)
Porsche 924 S / 924 Turbo
Porsche 944 / 944 Turbo
Porsche 928
Porsche 968
Porsche 964
Porsche 993
Porsche 996
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1086
The product you are viewing cross references to these numbers
This tool is necessary for a professional assemblage of the clutch.
Fits:
For Vehicles with manual transmission
Porsche 911 G (1 of 3 possible variants, this one has 23 teeth)
Porsche 924 S / 924 Turbo
Porsche 944 / 944 Turbo
Porsche 928
Porsche 968
Porsche 964
Porsche 993
Porsche 996
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1086
1086
The product you are viewing cross references to these numbers
Price: €26.18
In stock