Gaskets & Sets

Engine cylinder cover base gasket. Sold each.
110.72 x 3.53



Fits:
Porsche 993 Carrera RS 3.7L 1995-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

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99970502341

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Engine cylinder cover base gasket, 110.72 x 3.53.
Often referred to as a rubber seal ring or O-ring, it is designed to fit precisely in its designated groove where the rotating or stationary component meets a housing, providing a durable and leak-resistant interface.
Sold each.

Fits:
Porsche 993 Carrera RS 3.7L 1995 - 1998

Diagram ref no 4

The sealing ring helps prevent oil, coolant or other fluids from leaking between closely fitted engine/transmission surfaces. It forms a compression seal around shafts or bores where fluid containment is critical. A properly functioning seal keeps fluids contained, minimizes the risk of contamination, and preserves lubrication where it’s needed most - such as around pistons, cylinders, or fluid passages.

• Application: Engine or drivetrain sealing ring used in cylinder base or other fluid interface points where a precise rubber seal is required to maintain fluid containment and mechanical integrity.

Replace this sealing ring if you notice:
•  Visible fluid leaks around engine or transmission joint areas
•  Low oil or fluid levels without external explanation
•  During engine or transmission removal and service
•   When original seals show visible wear, cracking, or hardening

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99970502341

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Engine cylinder cover base gasket. 110.00 x 2.50.
Sold each.



Fits:
Porsche 996 Turbo 2001-05
Porsche 997.1 Turbo 2007-09
Porsche 997.2 Turbo 2010-13
Porsche 996 GT3 2000-05
Porsche 997 GT3 2007-11

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Diagram ref no 7

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99970739440

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Engine cylinder cover base gasket. Sold each.

Inner Diameter: 110 mm,
Outer diameter: 115 mm,
Thickness: 3 mm,



Fits:
Porsche 996 Turbo 2001-05
Porsche 997.1 Turbo 2007-09
Porsche 997.2 Turbo 2010-13
Porsche 996 GT3 2000-05
Porsche 997 GT3 2007-11

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

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99970739440

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Engine cylinder head gasket full set to fit cylinders 1-3 and 4-6.



Fits:
Porsche 911 (996) 3.6L S / Turbo / GT2 2001-2005

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99610119373

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Engine cylinder head gasket to fit cylinders 1-3 and 4-6.



Fits:
Porsche 911 (996) Turbo & GT2 2001-2005
Porsche 911 (996) GT3 1999-2005

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99610119373

The product you are viewing cross references to these numbers

Engine cylinder head gasket to fit cylinders 1-3 and 4-6.



Fits:
Porsche 911 (996) Turbo & GT2 2001-2005
Porsche 911 (996) GT3 1999-2005

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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99610119373

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Engine Gasket Set.
Engine re-build complete gasket set, INCLUDING head gaskets.
This kit is made with very high quality gaskets, and are complete gasket sets to complete the job.

The OE Match Engine Gasket Set is a premium-quality replacement sealing kit designed to restore the integrity of compatible Porsche engines during repairs, rebuilds or major servicing. Manufactured to OE specifications for fit, material quality and durability, this comprehensive gasket set provides the essential seals required to prevent oil, coolant and compression leaks while maintaining optimum engine performance and reliability.

Fits:

• Porsche 996 C2 3.4L 1997-08/01
• Porsche 996 C4 3.4L 1997-08/01 

Manufactured using premium-quality gasket materials selected for their resistance to heat, pressure, engine oil, coolant and fuel, the components are engineered to withstand the demanding operating conditions of modern and classic Porsche engines. Precision-cut for accurate OE-style fitment, the gasket set helps ensure reliable sealing across multiple engine assemblies, making it ideal for professional engine rebuilds, overhauls and preventative maintenance.

What This Product Does:

• Provides reliable sealing between critical engine components.
• Prevents oil, coolant and compression leaks.
• Maintains correct engine compression and efficiency.
• Supports proper lubrication and cooling system operation.
• Protects the engine from contamination and fluid loss.
• Restores factory sealing performance during engine repairs.
• Includes essential gaskets for comprehensive engine servicing.
• Forms an integral part of the engine sealing system.

Symptoms Of Wear Or Failure:

• Engine oil leaks.
• Coolant leaks.
• Overheating caused by coolant loss.
• White exhaust smoke indicating coolant entering the combustion chamber.
• Low engine compression.
• Mixing of oil and coolant.
• Visible gasket deterioration during servicing.
• Loss of engine performance.
• Increased oil consumption.
• Persistent fluid leaks after component removal or rebuilds.

Why Replacement Matters:

• Engine gaskets operate under extreme temperatures, high pressures and continual thermal expansion and contraction. Over time, gasket materials can harden, compress or deteriorate, reducing their ability to maintain an effective seal between engine components.
• Failing gaskets can allow oil, coolant or combustion gases to escape, resulting in reduced engine performance, overheating, fluid contamination and accelerated internal engine wear. During any engine rebuild or major repair, replacing all relevant gaskets is essential to ensure long-term reliability and avoid repeat labour.
• Replacing worn gaskets with the OE Match Engine Gasket Set restores the engine's sealing integrity and helps ensure reliable operation throughout the entire engine assembly. Manufactured to OE standards using premium sealing materials, this complete gasket set provides factory-style fitment, long-lasting durability and dependable performance, making it the ideal solution for Porsche engine rebuilds, servicing and restoration projects.

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999100M9601

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Engine Gasket Set.
Engine re-build complete gasket set, INCLUDING head gaskets This kit is made with very high-quality gaskets, and are complete gasket sets to complete the job.

The OE Match Engine Gasket Set is a premium-quality replacement sealing kit designed to restore the sealing integrity of compatible Porsche engines during repairs, rebuilds and major servicing. Manufactured to OE specifications for fit, material quality and durability, this comprehensive gasket set contains the essential gaskets and seals required to prevent oil, coolant and compression leaks while maintaining optimum engine performance and long-term reliability.

Fits:

• Porsche 996 C2 3.6L 09/01-2005
• Porsche 996 C4 3.6L 09/01-2005
• Porsche 996 C4S 3.6L 09/01-2005  

Manufactured from premium-quality composite gasket materials, high-temperature elastomers and precision-engineered sealing components, the kit is designed to withstand extreme engine temperatures, high combustion pressures and continual exposure to engine oil and coolant. Precision-cut for direct OE-style installation, each gasket provides an accurate fit to ensure dependable sealing across critical engine assemblies, making the kit ideal for professional engine rebuilds and preventative maintenance.  

What This Product Does:

• Provides reliable sealing between critical engine components.
• Prevents oil, coolant and combustion gas leaks.
• Maintains correct engine compression and efficiency.
• Supports proper lubrication and cooling system operation.
• Protects the engine from contamination and fluid loss.
• Restores factory sealing performance during engine repairs.
• Supplies essential gaskets for comprehensive engine servicing.
• Forms an integral part of the engine sealing system.

Symptoms Of Wear Or Failure:

• Engine oil leaks.Coolant leaks.
• Loss of engine compression.
• Engine overheating caused by coolant loss.
• White exhaust smoke indicating coolant entering the combustion chamber.
• Oil and coolant contamination.
• Reduced engine performance.
• Increased engine oil consumption.
• Visible gasket deterioration during engine servicing.
• Persistent fluid leaks following engine disassembly.

Why Replacement Matters:

• Engine gaskets are subjected to constant thermal cycling, high internal pressures and prolonged exposure to oil, coolant and combustion gases. Over time, gasket materials naturally compress, harden or deteriorate, reducing their ability to maintain an effective seal between engine components.
• Failing gaskets can lead to fluid leaks, loss of compression, overheating and contamination of vital engine systems. Continued operation with damaged gaskets can accelerate engine wear and result in expensive repairs. During any major engine repair or rebuild, replacing all sealing components is essential to ensure reliable long-term performance and avoid repeat labour.
• Replacing worn gaskets with the OE Match Engine Gasket Set restores the engine's sealing integrity and helps maintain reliable operation throughout the entire engine assembly. Manufactured to OE standards using premium sealing materials, the 999100M9603 kit provides factory-style fitment, long-lasting durability and dependable performance, making it the ideal solution for Porsche engine rebuilds, servicing and restoration projects.

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999100M9603

The product you are viewing cross references to these numbers

Engine gasket set



Fits:
Porsche Porsche 996 Carrera 3.4L

Please note this kit does not include Engine Gasket - Cylinder 1-3 or 4-6. these must be purchased separately.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99610090500

The product you are viewing cross references to these numbers

Engine gasket set



Fits:
Porsche Porsche 996 Carrera 3.4L

Please note this kit does not include Engine Gasket - Cylinder 1-3 or 4-6. these must be purchased separately.

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99610090500

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Engine Gasket Set. Porsche Boxster 986 Upto 2002 / 996 3.4L



Fits:
Porsche 986 Boxster 2.5L 1997-2004
Porsche 996 3.4L

Please note this kit does not include Engine Gasket - Cylinder 1-3 or 4-6. these must be purchased separately.

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98610090500

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Engine head gasket. Cylinder 1-3 or 4-6.
1 per engine.



Fits:
Porsche 996 C2 / C4 3.4L 1998-01 (M96.01/02/04)

This product supersedes Porsche's old part numbers:
- 99610427005 (1-3 Cyl.) / 99610426900 (4-6 Cyl.)

Click 'Zoom in' for large parts diagram.
Diagram ref no 24.

Related reference numbers
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9961042

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Engine head gasket. Cylinder 1-3 or 4-6.
1 per engine.



Fits:
Porsche 996 C2 / C4 3.4L 1998-01 (M96.01/02/04)

This product supersedes Porsche's old part numbers:
- 99610427005 (1-3 Cyl.) / 99610426900 (4-6 Cyl.)

Click 'Zoom in' for large parts diagram.
Diagram ref no 24.

Related reference numbers
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9961042

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Engine Head Gasket for Cylinder 1-3 or 4-6.
2 per engine.



Fits:
Porsche 996 Turbo / GT2 2005-08
Porsche 996 GT3 2000-05
Porsche 997 MKI Turbo / GT2 2007-09 (M97.70)
Porsche 997 MKII Turbo 2010-12 (M97.70)
Porsche 997 MKII GT2
Porsche 997 MKII GT2RS
Porsche 997 GT3 2007-11 (M97.76)

This product supersedes Porsche's old part numbers:
- 99610417071

Click 'Zoom in' for large parts diagram.
Diagram ref no 17

Engine Head Gasket for Cylinder 1-3 or 4-6.
2 per engine.



Fits:
Porsche 996 Turbo / GT2 2005-08
Porsche 996 GT3 2000-05
Porsche 997 MKI Turbo / GT2 2007-09 (M97.70)
Porsche 997 MKII Turbo 2010-12 (M97.70)
Porsche 997 MKII GT2
Porsche 997 MKII GT2RS
Porsche 997 GT3 2007-11 (M97.76)

This product supersedes Porsche's old part numbers:
- 99610417071

Click 'Zoom in' for large parts diagram.
Diagram ref no 17