Crankshaft seal. Porsche 928 - 99911326340
99911326340/1
Vehicle Group
- 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
Crankshaft seal. 60 X 85 X 10 mm.
Front crankshaft seal also known as a shaft sealing ring. It sits at the front of the engine, sealing the point where the crankshaft passes through the engine block - typically behind the vibration damper or timing gear. Its purpose is to keep engine oil contained while allowing the crankshaft to spin freely.
Fits:
Porsche 928 1978 - 1995
Diagram ref no 3
Over time, the crankshaft seal can wear down from constant heat, oil exposure, and friction. The rubber lip may harden, crack, or become damaged, losing its ability to seal properly. When this happens, oil begins to leak, which can create a mess, damage engine components, or cause belts and pulleys to slip if oil spreads across them.
How to Know If It’s Failing:
You might suspect the seal is failing if you notice:
• Oil dripping or forming a puddle under the front section of the engine.
• Visible oil seepage around the crankshaft front seal area.
• Smoke or burning smell under the hood (oil hitting a hot surface). Low oil levels without visible external damage.
• After so many miles or long periods without seal maintenance, even if there’s not a massive leak yet.
If a worn front crankshaft seal isn’t replaced, the oil leak will usually worsen over time. This can lead to significant oil loss and starve the engine of proper lubrication, causing serious internal damage. Leaking oil may also spread onto belts and pulleys, leading to slippage, premature wear, or even belt failure. In addition to making a mess and degrading nearby components, oil on hot surfaces can pose a fire hazard. Left unchecked, the problem often becomes more expensive to fix, especially if the leak reaches sensors, wiring, or other critical parts.
Related reference numbers
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99911326340
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Front crankshaft seal also known as a shaft sealing ring. It sits at the front of the engine, sealing the point where the crankshaft passes through the engine block - typically behind the vibration damper or timing gear. Its purpose is to keep engine oil contained while allowing the crankshaft to spin freely.
Fits:
Porsche 928 1978 - 1995
Diagram ref no 3
Over time, the crankshaft seal can wear down from constant heat, oil exposure, and friction. The rubber lip may harden, crack, or become damaged, losing its ability to seal properly. When this happens, oil begins to leak, which can create a mess, damage engine components, or cause belts and pulleys to slip if oil spreads across them.
How to Know If It’s Failing:
You might suspect the seal is failing if you notice:
• Oil dripping or forming a puddle under the front section of the engine.
• Visible oil seepage around the crankshaft front seal area.
• Smoke or burning smell under the hood (oil hitting a hot surface). Low oil levels without visible external damage.
• After so many miles or long periods without seal maintenance, even if there’s not a massive leak yet.
If a worn front crankshaft seal isn’t replaced, the oil leak will usually worsen over time. This can lead to significant oil loss and starve the engine of proper lubrication, causing serious internal damage. Leaking oil may also spread onto belts and pulleys, leading to slippage, premature wear, or even belt failure. In addition to making a mess and degrading nearby components, oil on hot surfaces can pose a fire hazard. Left unchecked, the problem often becomes more expensive to fix, especially if the leak reaches sensors, wiring, or other critical parts.
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Vehicle Group
- 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 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
Rear Main Oil Seal. 90 x 110 x 12.
Fitting Position: Transmission End, Inner Diameter: 90 mm, Outer diameter: 110 mm, Width: 12 mm, Radial Shaft Seal Design.
Fits:
Porsche 964 1989-94
Porsche 993 1994-98
Porsche 996 Turbo / GT2 / GT3 MKI
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99911342641
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Fitting Position: Transmission End, Inner Diameter: 90 mm, Outer diameter: 110 mm, Width: 12 mm, Radial Shaft Seal Design.
Fits:
Porsche 964 1989-94
Porsche 993 1994-98
Porsche 996 Turbo / GT2 / GT3 MKI
Porsche 944 - All models including 944S, 944 Turbo &
944 S2 built 1982-1991
Porsche 924S - All models built 1986-1988
Porsche 928 - All models built 1986-1995
Porsche 968 - All models built 1992-1995
Diagram Ref No. 21
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Vehicle Group
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- 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
Information
Oil Level Sender Gasket.
Fits:
Porsche 924S 1986-88
Porsche 944 1987-91
Porsche 968 1992-95
Click "Zoom in" for the large parts diagram.
Diagram ref no 44.
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94410123302
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Fits:
Porsche 924S 1986-88
Porsche 944 1987-91
Porsche 968 1992-95
Click "Zoom in" for the large parts diagram.
Diagram ref no 44.
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Vehicle Group
- 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
Information
Oil sump gasket
Fits:
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 968 1992-95
Diagram ref no 28.
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Fits:
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 968 1992-95
Diagram ref no 28.
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