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- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
The O-Ring is a OE MATCH sealing component designed to provide a secure, leak-proof seal between connected components within drivetrain or transmission systems. Manufactured from durable, heat-resistant elastomer material, this O-ring ensures proper sealing under pressure while maintaining system integrity.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Diagram Ref No 5
What This Product Does:
- Creating a tight seal between mating components
- Preventing oil or fluid leaks within sealed assemblies
- Maintaining proper system pressure
- Protecting internal components from contamination
- Ensuring smooth and reliable operation of connected parts
Symptoms Of Wear Or Failure:
- Fluid leaks around sealed joints or housings
- Oil residue or buildup near fittings
- Reduced system pressure
- Hardened, flattened, or cracked rubber seal
- Moisture or contaminants entering sealed components
Why Replacement Matters:
- Prevent oil or transmission fluid leaks
- Maintain proper pressure within mechanical systems
- Protect internal components from contamination
- Restore proper sealing performance
- Avoid costly repairs caused by fluid loss
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
01V409133A
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
- Porsche 914 (1970-1976)
The OE Match Oil Seal for Mainshaft is a high-quality replacement sealing component designed to prevent gearbox oil from escaping around the transmission mainshaft. Manufactured to OE specifications, this precision-engineered seal provides a secure barrier between rotating transmission components and the gearbox housing, helping to maintain correct lubrication and protect against fluid loss.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356 1950-55Porsche 356A 1955-59
- Porsche 356B 1959-63Porsche 356C 1963-65
- Porsche 914 (1970-1976)
Constructed from durable oil-resistant materials, the seal is designed to withstand continuous shaft rotation, temperature fluctuations and long-term exposure to transmission oil. It is an essential service item during gearbox repairs, rebuilds and preventative maintenance.
What This Product Does:
- Prevents gearbox oil from leaking around the mainshaft.
- Maintains proper lubrication within the transmission.
- Protects gearbox components from oil loss.
- Prevents dirt, moisture and contaminants from entering the gearbox.
- Supports reliable transmission performance and longevity.
- Helps maintain correct gearbox oil levels.
Symptoms Of Wear Or Failure:
- Gearbox oil leaks beneath the vehicle.
- Oil residue around the transmission housing or shaft area.
- Gradual loss of gearbox oil.
- Difficulty maintaining correct transmission fluid levels.
- Contamination of surrounding components with oil.
- Increased transmission noise caused by reduced lubrication.
- Premature wear of gearbox bearings and internal components.
- Burning oil smells if leaking oil contacts hot surfaces.
Why Replacement Matters:
- Mainshaft oil seals are subjected to constant shaft rotation, vibration, heat and prolonged exposure to transmission oil. Over time, the sealing lip can harden, wear or lose elasticity, reducing its ability to maintain an effective seal.
- A leaking oil seal can allow gearbox lubricant to escape, potentially reducing lubrication to critical internal components. If left unresolved, low oil levels can accelerate wear of gears, bearings and synchronisers, leading to costly transmission repairs or rebuilds.
- Replacing a worn mainshaft oil seal helps preserve correct gearbox lubrication, prevents oil leaks and protects internal transmission components from premature wear. An OE Match replacement restores the integrity of the gearbox sealing system and helps ensure reliable long-term transmission performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
113311113B
The product you are viewing cross references to these numbers
- Porsche 911 1987-1989 3.2L G50
- Porsche 964 (911) C2 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
The OE Match Gearbox Gasket Set for G50 Gearbox is a comprehensive transmission sealing kit designed to restore the integrity of the Porsche G50 manual gearbox during overhaul, repair or routine maintenance. Manufactured to OE specifications for fit, material quality and durability, this gasket set contains the essential seals and gaskets required to prevent transmission oil leaks and maintain correct lubrication throughout the gearbox.
Fits:
- Porsche 911 1987-1989 3.2L G50
- Porsche 964 (911) C2 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
Produced from high-quality gasket materials resistant to gearbox oil, heat and pressure, the components are designed to provide long-lasting sealing performance under demanding operating conditions. Ideal for gearbox rebuilds and preventative maintenance, this OE Match kit helps ensure reliable operation and extends the service life of the transmission.
What This Product Does:
- Provides replacement gaskets and seals for the Porsche G50 gearbox.
- Restores leak-free sealing between gearbox components.
- Prevents transmission oil leaks.
- Maintains correct gearbox oil levels.
- Protects internal gears, bearings and synchronisers through proper lubrication.
- Supports reliable gearbox operation after servicing or rebuilding.
- Helps reduce the risk of contamination entering the transmission.
- Forms an essential part of any G50 gearbox overhaul or repair.
Symptoms Of Wear Or Failure:
- Gearbox oil leaks.
- Oil residue around gearbox mating surfaces.
- Low gearbox oil level.
- Difficulty selecting gears due to lubrication loss.
- Increased gearbox noise or whining.
- Oil contamination around the transmission housing.
- Burning oil smell after driving.
- Premature wear of gearbox components.
- Damp or stained transmission casing.
- Visible deterioration or hardening of gasket material during servicing.
Why Replacement Matters:
- Gearbox gaskets and seals are continually exposed to transmission oil, heat, pressure fluctuations and vibration. Over time, sealing materials can harden, shrink or deteriorate, allowing oil to escape and contaminants to enter the transmission.
- Loss of gearbox oil can reduce lubrication to gears, bearings and synchronisers, accelerating wear and potentially leading to expensive transmission damage. Oil leaks may also contaminate surrounding components and create maintenance issues.
- Replacing all critical gaskets and seals during gearbox servicing or rebuilding helps restore the transmission's sealing integrity and ensures long-term reliability. An OE Match Gearbox Gasket Set provides factory-style fitment, high-quality sealing materials and dependable durability, helping protect your Porsche G50 gearbox while maintaining smooth, reliable shifting performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96430091200
The product you are viewing cross references to these numbers
- 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 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 912E 4CYL 1976
Gear Selector Shaft Oil Seal
OE Match gear selector shaft oil seal for
classic Porsche 911 and 912 manual gearboxes. Designed to replace a worn or
leaking original seal, this component helps prevent transmission oil from
escaping around the gear selector shaft where it passes through the gearbox
housing.
Fits:
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 1975-1977 3.0L Turbo (930)
Porsche 911 1978-1989 3.3L Turbo (930)
Porsche 912E 4CYL 1976
Diagram ref no 8
The seal provides a barrier between the moving selector shaft and gearbox casing, helping retain the correct transmission oil level and protecting the surrounding components from oil contamination.
What Does the Gear Selector Shaft Oil Seal Do?
The gear selector shaft transfers movement from the gear lever linkage into the gearbox, allowing the driver to select different gears.
The oil seal fits around this shaft and prevents gearbox oil from escaping while allowing the shaft to move during gear changes. A properly functioning seal helps maintain the transmission oil level and keeps the gearbox exterior clean and dry.
Why Does It Fail?
Over time, the sealing material can harden, shrink or lose flexibility due to age, heat and prolonged contact with transmission oil.
Common causes of failure include:
- Age-related deterioration of the sealing lip
- Hardened or cracked rubber
- Wear from repeated selector shaft movement
- Corrosion or damage to the shaft sealing surface
- Incorrect installation or previous gearbox repairs
- Excessive shaft movement or wear
As the seal deteriorates, transmission oil may begin to seep around the selector shaft.
When Should It Be Replaced?
A replacement may be required if you notice:
- Gearbox oil leaking around the selector shaft
- Oil collecting on the underside of the transmission
- Drips beneath the gearbox
- A persistent oily residue around the selector linkage
- A damaged or hardened seal during gearbox servicing
The seal should also be inspected whenever the gearbox selector mechanism is dismantled or the transmission is removed for restoration.
Checks During Replacement
Before fitting a new oil seal, inspect the selector shaft for corrosion, scoring or excessive movement. Check the gearbox breather and surrounding seals to ensure the leak has been correctly identified.
The new seal should be installed squarely and to the correct depth, without damaging the sealing lip or shaft surface.
Porsche 911 / 912 Gearbox Oil Seals & Transmission Components
Gearbox oil seals are essential for maintaining the correct lubrication of classic Porsche manual transmissions. The gear selector shaft oil seal prevents transmission oil from leaking where the selector shaft enters the gearbox housing.
On older Porsche 911 and 912 models, ageing seals can become brittle or worn, allowing gearbox oil to escape. Replacing a leaking seal helps protect the transmission against lubricant loss and prevents oil contamination around the gear linkage and gearbox casing.
OE Match seal is a 15 × 24 × 7 mm replacement selector shaft oil seal for selected Porsche 911, 912 and 930 Turbo manual gearboxes. It is particularly suitable for maintenance and restoration of classic Porsche transmissions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911318540
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 911 1972-86
Manual transmission
Diagram ref no 51
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91530228200
The product you are viewing cross references to these numbers