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Gasket Sets / Gaskets / Seals / Lock Nuts
By OE Match
- Porsche 911 1987-1989 3.2L G50
- 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 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Its function is to act as a primary seal to retain oil around the input (main) shaft of a manual transmission, preventing fluid leaks and protecting driveline components.
Fits:
Porsche 911 Carrera / Turbo 1987 - 1989
Porsche 964 Carrera / Turbo 1989 - 1994
Porsche 993 Carrera / Turbo 1995 - 1998
Porsche 996 Turbo / GT2 / GT3 2001 - 2005
Porsche 997.1 Turbo / GT2 2007 - 2009
Porsche 997.2 Turbo / GT2 2010 - 2013
Porsche 996 GT3 1999 - 2005
Porsche 997 GT3 2007 - 2011
Diagram ref no 12
Application:
• Manual transmission input shaft oil seal
• Cross-referenced with superseded part number: 99911332640
The input shaft seal sits around the input/main shaft where it enters the transmission case. Its job is to keep transmission fluid from leaking out and to prevent contamination from entering the gearbox. By maintaining a secure seal around the rotating shaft, this component helps preserve optimal lubrication, reduce wear, and support smooth gear operation.
In a manual transmission, the input shaft takes power from the clutch and delivers it into the gearbox. The seal must endure rotation, pressure changes, heat, and exposure to transmission fluid, forming a durable barrier that keeps oil inside while preventing dirt and debris from entering. A properly functioning input shaft seal is crucial for transmission longevity and performance.
Over time and mileage, seals can harden, crack, or lose elasticity due to heat, oil exposure, and mechanical wear. A failed input shaft seal can lead to:
• Transmission fluid leaks
• Low fluid levels
• Increased gearbox noise
• Premature wear on gears and bearings
• Potential drivetrain damage
Replacing worn or leaking seals restores proper fluid containment and protects the integrity of the transmission system, preserving performance and reducing the risk of costly repairs.
Replace the input shaft seal if you notice:
• Visible transmission fluid leaks at the bellhousing area
• Low transmission fluid levels
• Gearbox whine or unusual noises
• Transmission slipping or crunching in gear shifts
• After transmission removal or overhaul
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99911332641
The product you are viewing cross references to these numbers
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Manual Transmission Input Shaft Seal is a genuine Porsche OEM part, engineered and approved by Porsche to meet the exact specifications used in factory assemblies. It is a precision-manufactured seal that prevents transmission fluid from leaking at the point where the manual transmission’s input (main) shaft passes through the gearbox housing.
Fits:
For cars with MANUAL gearbox
Porsche 997.1 Carrera 2 / Carrera 4 - 2005 to 2008
Porsche 997.1 Carrera 2S / Carrera 4S - 2005 to 2008
Porsche 997.2 Carrera 2 / Carrera 4 - 2009 to 2012
Porsche 997.2 Carrera 2S / Carrera 4S - 2009 to 2012
Diagram ref no 1
This seal creates a hydrostatic barrier between the rotating transmission input shaft and the stationary gearbox housing, preventing transmission oil from escaping while allowing the shaft to spin freely. Proper sealing helps maintain correct fluid levels and protects internal gears and bearings from premature wear.
Function:
• Seals manual transmission fluid at the input/main shaft interface
• Prevents leaks and loss of lubrication
• Maintains consistent gearbox oil levels
• Supports smooth rotation and drivetrain reliability
A compromised input shaft seal can lead to transmission oil leaks, low lubricant levels, and increased friction inside the gearbox, all of which can accelerate wear on gears, bearings, and synchros. Replacing a leaking or worn seal ensures proper sealing, preserves gearbox health, and helps avoid expensive drivetrain repairs down the road.
When to replace:
• Visible manual transmission oil leaks at front of gearbox
• Low gearbox oil level without other external leaks
• During transmission removal or servicing
• When replacing other drivetrain seals to prevent future leaks
• As preventative maintenance with clutch or drivetrain overhaul
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99730280700
The product you are viewing cross references to these numbers
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Manual Transmission Input Shaft Seal is an OE Match replacement shaft seal designed to fit precisely in the transmission case and maintain a reliable seal around the input shaft under rotational load, temperature variations, and fluid pressure. It prevents transmission fluid leakage at the interface where the input (main) shaft exits the transmission housing - ideal for Porsche 911 (997) manual transmissions.
Fits:
For cars with MANUAL gearbox
Porsche 997.1 Carrera 2 / Carrera 4 - 2005 to 2008
Porsche 997.1 Carrera 2S / Carrera 4S - 2005 to 2008
Porsche 997.2 Carrera 2 / Carrera 4 - 2009 to 2012
Porsche 997.2 Carrera 2S / Carrera 4S - 2009 to 2012
Diagram ref no 1
The input shaft seal creates a tight barrier between the manual transmission housing and the rotating input (main) shaft, preventing transmission oil from leaking out while allowing smooth shaft rotation.
Function:
• Prevents manual transmission fluid from leaking at the input shaft
• Ensures correct retention of lubrication within the gearbox
• Supports smooth, vibration-free shaft rotation
A worn or leaking input shaft seal allows transmission lubricant to escape, lowering oil levels and leading to increased friction, heat, and accelerated gearbox wear. Replacing it with an OE Match seal restores proper lubrication containment, helps protect internal gears and bearings, and reduces risk of costly transmission damage.
When to replace:
• Visible transmission oil leaks at front of gearbox
• Transmission oil level drops without external cause
• After manual gearbox removal/servicing
• When rebuilding or refreshing the transmission
• Preventative maintenance during clutch or drivetrain work
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99730280700
The product you are viewing cross references to these numbers
- 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 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
(does not include transfer casing gaskets)
Fits:
Porsche 996 Tiptronic - 2001 to 2005
Porsche 997.1 Tiptronic - 2005 to 2008
For Transmission type
A96.10
A96.35
A97.01
A97.31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1402706500
The product you are viewing cross references to these numbers
-
manual transmission, single parts, transmission case, vorne for 997.1 CARRERA C2 G97.01 2005-08 and 997.1 CARRERA C4 G97.31 2006-08 302-04
-
tiptronic: oil filter and oil pan for 997.1 CARRERA C2 A97.01 TIPTRONIC 2005-08 and 997.1 CARRERA C4 A97.31 TIPTRONIC 2006-08 340-00
-
transmission case for 997.1 TURBO G97.50 2007-09 302-01
-
transmission case for 997.1 TURBO GT2 G97.88 2008-09 and 997.1 GT2 RS G97.88 2011 302-02
-
tiptronic: oil filter, oil pan for 997.1 TURBO G97.50 2007-09 340-01
-
transmission case front 997 GT3 G97.90 UPTO 2009 302-05
-
transmission case front 997 GT3 / GT RS G97.90/92 2010 ONWARDS 302-07
OEMatch Gasket Sets / Gaskets / Seals / Lock Nuts — Fit, Function, Confidence
For Porsche models, OEMatch supplies gasket sets, seals and lock nuts intended to protect gearboxes and differentials from lubricant loss and contamination while preserving correct internal clearances and pressure. These items are useful for routine service, gearbox rebuilds and resolving persistent transmission leaks.
Available Types
- Complete gearbox and differential gasket sets for rebuilds
- Individual shaft seals, O-rings and grommets
- Lock nuts and transmission fastener kits
Understanding OEMatch Gasket Sets / Gaskets / Seals / Lock Nuts
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original gasket sets, gaskets, seals and lock nuts.
OE (Original Equipment) refers to parts matching original specifications for the gasket sets, gaskets, seals and lock nuts and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM gasket sets, gaskets, seals and lock nuts engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Gaskets and seals create pressure-tight joints between mating gearbox surfaces and around rotating shafts; lock nuts and fastening kits secure components subject to high torque and vibration. Correct material selection and surface condition are essential to maintain sealing performance, particularly where high temperature and exposure to transmission fluids can accelerate degradation. OEMatch integrates a broad catalogue of Porsche part references to help match application requirements.
Benefits Include
- Restores reliable oil containment to prevent leaks
- Preserves gearbox pressure and lubrication pathways
- Reduces the risk of internal wear and noise from fluid loss
Why Gasket Sets / Gaskets / Seals / Lock Nuts Wear and Fail
- Thermal cycling causing shrinkage, cracking or compression set of gasket materials
- Chemical attack or hardening of seals from aged or contaminated fluids
- Damaged or corroded mating surfaces created during service or by debris
- Incorrect installation or re-use of old sealing materials and fasteners
The Importance of Replacing with OEMatch Gasket Sets / Gaskets / Seals / Lock Nuts
Replacing worn or damaged sealing components prevents lubricant loss, contamination and consequential gearbox damage. Renewing gaskets, seals and lock nuts during a rebuild or major service restores designed sealing points and fastener security, helping to maintain smooth, reliable transmission operation and reducing the likelihood of repeat repairs.
Advantages
- Materials chosen for compatibility with transmission fluids and operating temperatures
- Restores intended sealing clearances and assembly torque behaviour
- Facilitates thorough gearbox servicing and long-term reliability when fitted correctly
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Clutch Kits
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Clutch Friction Plate
-
Clutch Guide Tube
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Clutch Ring Gear
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Clutch Forks & Levers
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Clutch Bolts
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Gearbox Parts
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Driveshafts & Parts
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Gearbox Mounts
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Gearshift Control Parts
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Flywheel / Torque
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CV Joints Kits
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CV Boots and Kits
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Cardan Shaft / Prop Shaft
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Gearbox Sump / Oil Pan
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Rear Differential
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Transmission Cooling
