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Standard Replacement Parts
By OE Match
Filter by brand
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 3.6L 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
Information
Cylinder head gasket set.
This cylinder head gasket set (6-piece) is an OE Match replacement kit designed for air-cooled Porsche 964 and 993 flat-six engines. This set includes the full quantity of head sealing rings required for a complete engine top-end service or rebuild.
SET OF 6
Fits:
Porsche 964 C2 / C4 / Carrera RS 1991-94
M 62M 06837 >>
M 62M 52758 >>
Porsche 964 Turbo 3.6L 1993 - 1994
Porsche 993 1995 - 1998
Diagram ref no 8
Cylinder head gaskets (sealing rings) play a critical role in containing combustion pressure and heat. They ensure a gas-tight seal between the cylinder and head, supporting stable compression, efficient combustion, and consistent engine performance across all six cylinders.
Replacing all six gaskets at once ensures uniform sealing and balanced compression throughout the engine.
Function:
• Seals the cylinder-to-head interface under extreme heat and pressure
• Maintains compression integrity for efficient combustion
• Prevents blow-by and gas leakage at the head joint
• Protects cylinder heads and barrels during long-term operation
Correct sealing is essential on air-cooled engines, where thermal expansion and operating temperatures place high stress on the head-to-cylinder joint.
Cylinder head gaskets are exposed to extreme thermal and mechanical stress. Over time, sealing rings can lose effectiveness, leading to:
• Compression loss
• Combustion gas leakage
• Reduced engine efficiency
• Risk of head or cylinder damage.
Replacing all six gaskets during a rebuild or top-end refresh ensures consistent sealing, protects machined surfaces, and supports long-term engine reliability.
When to replace. Replace cylinder head gaskets when:
• Performing a top-end rebuild or engine overhaul
• Cylinder heads are removed
• Leak-down or compression tests show sealing issues
• Evidence of combustion leakage is found
• As preventative maintenance during engine restoration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410411520
The product you are viewing cross references to these numbers
This cylinder head gasket set (6-piece) is an OE Match replacement kit designed for air-cooled Porsche 964 and 993 flat-six engines. This set includes the full quantity of head sealing rings required for a complete engine top-end service or rebuild.
SET OF 6
Fits:
Porsche 964 C2 / C4 / Carrera RS 1991-94
M 62M 06837 >>
M 62M 52758 >>
Porsche 964 Turbo 3.6L 1993 - 1994
Porsche 993 1995 - 1998
Diagram ref no 8
Cylinder head gaskets (sealing rings) play a critical role in containing combustion pressure and heat. They ensure a gas-tight seal between the cylinder and head, supporting stable compression, efficient combustion, and consistent engine performance across all six cylinders.
Replacing all six gaskets at once ensures uniform sealing and balanced compression throughout the engine.
Function:
• Seals the cylinder-to-head interface under extreme heat and pressure
• Maintains compression integrity for efficient combustion
• Prevents blow-by and gas leakage at the head joint
• Protects cylinder heads and barrels during long-term operation
Correct sealing is essential on air-cooled engines, where thermal expansion and operating temperatures place high stress on the head-to-cylinder joint.
Cylinder head gaskets are exposed to extreme thermal and mechanical stress. Over time, sealing rings can lose effectiveness, leading to:
• Compression loss
• Combustion gas leakage
• Reduced engine efficiency
• Risk of head or cylinder damage.
Replacing all six gaskets during a rebuild or top-end refresh ensures consistent sealing, protects machined surfaces, and supports long-term engine reliability.
When to replace. Replace cylinder head gaskets when:
• Performing a top-end rebuild or engine overhaul
• Cylinder heads are removed
• Leak-down or compression tests show sealing issues
• Evidence of combustion leakage is found
• As preventative maintenance during engine restoration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410411520
96410411520
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
6 x Cylinder head gasket. Porsche 964 / 993 (96410411520/2
Price: €63.18
In stock
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 3.6L 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
Information
Cylinder head gasket.
OE Match cylinder head gasket (sealing ring) designed to seal the joint between the cylinder and cylinder head on air-cooled Porsche 964 and 993 engines, helping maintain proper compression and preventing leakage at the head-to-cylinder interface.
Sold each, 6 required per vehicle.
Fits:
Porsche 964 C2 / C4 / Carrera RS 1991-94
M 62M 06837 >>
M 62M 52758 >>
Porsche 964 Turbo 3.6L 1993 - 1994
Porsche 993 1995 - 1998
Diagram ref no 8
The gasket forms a critical seal at the combustion boundary where extreme heat and pressure are present. It helps keep combustion gases contained, supports stable compression, and prevents leakage that can lead to poor running, overheating, or costly engine damage.
Function:
• Seals the cylinder-to-head interface under high temperature and pressure
• Helps maintain compression and consistent combustion efficiency
• Reduces risk of blow-by and hot gas leakage at the sealing surface
• Supports long-term reliability during rebuilds or top-end refreshes
A compromised head gasket/sealing ring can cause compression loss and leakage at the head-to-cylinder joint, often showing up as poor performance, combustion leakage symptoms, and increased thermal stress. Replacing these gaskets during top-end work ensures correct sealing and protects freshly machined sealing surfaces.
When to replace:
• During top-end rebuild, head removal, or cylinder service
• Compression/leak-down results indicate sealing issues
• Evidence of leakage at head-to-cylinder interface
• Engine is apart and gaskets show wear, heat marking, or deformation
• Preventative replacement when refreshing 964/993 top end
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410411520
The product you are viewing cross references to these numbers
OE Match cylinder head gasket (sealing ring) designed to seal the joint between the cylinder and cylinder head on air-cooled Porsche 964 and 993 engines, helping maintain proper compression and preventing leakage at the head-to-cylinder interface.
Sold each, 6 required per vehicle.
Fits:
Porsche 964 C2 / C4 / Carrera RS 1991-94
M 62M 06837 >>
M 62M 52758 >>
Porsche 964 Turbo 3.6L 1993 - 1994
Porsche 993 1995 - 1998
Diagram ref no 8
The gasket forms a critical seal at the combustion boundary where extreme heat and pressure are present. It helps keep combustion gases contained, supports stable compression, and prevents leakage that can lead to poor running, overheating, or costly engine damage.
Function:
• Seals the cylinder-to-head interface under high temperature and pressure
• Helps maintain compression and consistent combustion efficiency
• Reduces risk of blow-by and hot gas leakage at the sealing surface
• Supports long-term reliability during rebuilds or top-end refreshes
A compromised head gasket/sealing ring can cause compression loss and leakage at the head-to-cylinder joint, often showing up as poor performance, combustion leakage symptoms, and increased thermal stress. Replacing these gaskets during top-end work ensures correct sealing and protects freshly machined sealing surfaces.
When to replace:
• During top-end rebuild, head removal, or cylinder service
• Compression/leak-down results indicate sealing issues
• Evidence of leakage at head-to-cylinder interface
• Engine is apart and gaskets show wear, heat marking, or deformation
• Preventative replacement when refreshing 964/993 top end
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410411520
96410411520
The product you are viewing cross references to these numbers
Price: €10.53
In stock
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) 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
Information
O-ring cylinder base 102 x 2.
Fitted into the cylinder base sealing groove, the O-ring compresses between the cylinder and crankcase to form an oil-tight barrier that withstands temperature changes and engine vibration.
Sold each, 6 required per car.
Fits:
Porsche 964 Carrera 2 / Carrera 4 / RS / turbo 1989 - 1994
Porsche 993 Carrera 2 / Carrera 4 / Carrera S / Carrera 4S / turbo 1994 - 1997
Diagram ref no 2
This OE Match O-ring is manufactured to OE-equivalent dimensions and material properties to provide a reliable seal at the cylinder-to-case interface. Correct sealing here is essential to prevent oil seepage during heat cycles and maintain a clean, properly sealed engine during rebuild or maintenance work. Ideal for engine overhauls, reseals, or any time cylinders are removed, this direct-fit O-ring restores the original sealing function without modification.
Old O-rings can harden, flatten, or crack with age and heat, increasing the likelihood of oil seepage at the cylinder base. Replacing them during engine work helps ensure a proper reseal, reducing leaks and protecting surrounding components from oil contamination.
When to replace:
• During engine rebuilds or top-end work (cylinders removed)
• Any time cylinder bases are resealed
• Visible oil seepage at cylinder-to-case area
• High-mileage preventative reseal
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970715240
The product you are viewing cross references to these numbers
Fitted into the cylinder base sealing groove, the O-ring compresses between the cylinder and crankcase to form an oil-tight barrier that withstands temperature changes and engine vibration.
Sold each, 6 required per car.
Fits:
Porsche 964 Carrera 2 / Carrera 4 / RS / turbo 1989 - 1994
Porsche 993 Carrera 2 / Carrera 4 / Carrera S / Carrera 4S / turbo 1994 - 1997
Diagram ref no 2
This OE Match O-ring is manufactured to OE-equivalent dimensions and material properties to provide a reliable seal at the cylinder-to-case interface. Correct sealing here is essential to prevent oil seepage during heat cycles and maintain a clean, properly sealed engine during rebuild or maintenance work. Ideal for engine overhauls, reseals, or any time cylinders are removed, this direct-fit O-ring restores the original sealing function without modification.
Old O-rings can harden, flatten, or crack with age and heat, increasing the likelihood of oil seepage at the cylinder base. Replacing them during engine work helps ensure a proper reseal, reducing leaks and protecting surrounding components from oil contamination.
When to replace:
• During engine rebuilds or top-end work (cylinders removed)
• Any time cylinder bases are resealed
• Visible oil seepage at cylinder-to-case area
• High-mileage preventative reseal
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970715240
99970715240
The product you are viewing cross references to these numbers
Price: €4.39
In stock
DISPLAYING 1 to 3 (of 3 products)
Also found on these pages
About Standard Replacement Parts
OEMatch Standard Replacement Parts — Durability, Sealing, Performance
OEMatch supplies standard replacement parts that support Porsche engines and systems. This page focuses on engine pistons and related items used in rebuilds and maintenance. Information covers function, common wear modes and typical replacement types, helping owners and technicians identify appropriate parts for Porsche model applications. OEMatch catalogs thousands of references for Porsche applications.
Available Types- Standard pistons for classic air-cooled engines
- Replacement pistons for modern water-cooled and turbocharged models
- Oversize and undersize pistons with matched rings
Understanding OEMatch Standard Replacement Parts
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original standard replacement parts.
OE (Original Equipment) refers to parts matching original specifications for the standard replacement parts and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM standard replacement parts engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
OE (Original Equipment) refers to parts matching original specifications for the standard replacement parts and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM standard replacement parts engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Engine pistons convert combustion energy into motion and maintain compression between the combustion chamber and crankcase. Proper piston selection and correct clearances are essential for reliable operation across Porsche engine types, from classic air-cooled flat-sixes to modern turbocharged units.
- Restores compression and torque delivery
- Reduces oil consumption and exhaust smoke
- Improves sealing and thermal stability
- Wear and scoring from contaminated oil or inadequate lubrication
- Thermal fatigue, cracking or crown distortion from overheating
- Detonation or pre-ignition damaging crowns and ring lands
- Excessive carbon build-up affecting ring sealing
The Importance of Replacing with OEMatch Standard Replacement Parts
Replacing worn pistons restores compression, reduces the risk of further engine damage and helps recover fuel efficiency and drivability in Porsche engines. Selecting components made to original-spec dimensions supports correct ring seating, clearance and balancing during rebuilds and maintenance, aiding long-term reliability.Advantages
- Options matched to original bore dimensions and tolerances
- Heat-treated aluminium alloys for strength and reduced reciprocating mass
- Balanced and finished surfaces to support smooth rotation
Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified. Recheck fasteners after initial running and follow any model-specific instructions for ring break-in and clearances.
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