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Gaskets & Sets

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DISPLAYING 1 to 16 (of 20 products)
1 2
99610418059/3.2KIT
Product Information
Product Information
Cylinder head bolt long & head gaskets Porsche 996 3.6L / Cayman 3.4L

Engine Cylinder Head Gasket Kit
The cylinder head gasket is a critical component that seals the cylinder head to the engine block. It serves several key functions, It seals the combustion chamber, ensuring proper compression for efficient engine performance. It prevents coolant and engine oil from mixing by sealing the fluid passages between the cylinder head and engine block.

Signs of Cylinder Head Gasket Failure
A failing head gasket can lead to serious engine problems. Common symptoms include:

  • Engine overheating
  • Low cylinder compression
  • External coolant or oil leaks
  • White smoke from the exhaust
  • Bubbles in the radiator or coolant reservoir
  • Milky or white-colored engine oil


oematch

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
  • Porsche Cayman S 3.4L 987C 2005-08  
  • Porsche Boxster 987 S 3.4L 2005-08/08
  • Porsche Boxster S 987 MKII 3.4L 2009-2012
  • Porsche Boxster 981 S / GTS 3.4L 2012-16  


Click 'Zoom in' for large parts diagram
Diagram ref no 19 & 20.



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Related, superseded, cross reference or alternative numbers for comparison.

99610418059
99610420104
99610420102
99610418058
99610418059
99610418053
99610418055
99610418056
99610418054
99610418057

The product you are viewing cross references to these numbers
999100M9603/KIT
Product Information
Product Information
Engine gasket set with 24 head bolts Porsche 996 3.6L 235KW / 320HP M96.03

Engine re-build complete gasket set, INCLUDING head gaskets & 24 head bolts This kit is made with very high-quality gaskets, and are complete gasket sets to complete the job.

Fits:

Porsche 996 3.6L 235KW / 320HP
Engine Type M96.03

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Related, superseded, cross reference or alternative numbers for comparison.

999100M9603
99610124151
99610124251
99610733750
99970755440
99610722151
99610634051
99610634054
99610632650
99610632651
99610420102
99610420104

The product you are viewing cross references to these numbers
99711024700/2KIT
Product Information
Product Information
Intake manifold gasket set 

Sold as a set of 6

Fits:
Porsche 996 Carrera 2 / Carrera 4 3.4ltr - 1999 to 2001
Porsche 996 Carrera 2 / Carrera 4 / 4S 3.6ltr - 2002 to 2005

Diagram ref no 2



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99711024700
99611024750
99711024700

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Special Order item
90012314730
Product Information
Product Information
Chain adjuster sealing ring. 27 x 32
3 per engine. Price is for each.

porsche

Fits:
Porsche 996
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997.1 Gen

Click 'Zoom in' for large parts diagram.
Diagram ref no 37

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

90012314730
90012314730

The product you are viewing cross references to these numbers
90012314730/1
Product Information
Product Information
Chain adjuster sealing ring. 27 x 32
3 per engine. Price is for each.

Fits:
Porsche 996
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997.1 Gen

Click 'Zoom in' for large parts diagram.
Diagram ref no 37

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90012314730
90012314730

The product you are viewing cross references to these numbers
Special Order item
99610124151
Product Information
Product Information
Crankcase oil separator gasket, 1-3 cyl.

porsche

Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2005-08
Porsche 996 Carrera 3.4L / 3.6L 1998-05
Porsche 997.1 Carrera 3.6L / 3.8L 2005-08

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

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

99610124151
99610124251
99610124151
280.300

The product you are viewing cross references to these numbers
99610124151/1
Product Information
Product Information
Crankcase oil separator gasket, 1-3 cyl.

elring

Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2005-08
Porsche 996 Carrera 3.4L / 3.6L 1998-05
Porsche 997.1 Carrera 3.6L / 3.8L 2005-08

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

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

99610124151
99610124151
280.300
99610124251

The product you are viewing cross references to these numbers
Special Order item
99610124251
Product Information
Product Information
Crankcase oil separator gasket, 4-6 cyl.
porsche

Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2005-08
Porsche 996 Carrera 3.4L / 3.6L 1998-05
Porsche 997.1 Carrera 3.6L / 3.8L 2005-08

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

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

99610124251
99610101000
99610101650
99610124251
274.670

The product you are viewing cross references to these numbers
99610124251/1
Product Information
Product Information
Crankcase oil separator gasket, 4-6 cyl.

elring

Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2005-08
Porsche 996 Carrera 3.4L / 3.6L 1998-05
Porsche 997.1 Carrera 3.6L / 3.8L 2005-08

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

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

99610124251
99610101000
99610101650
99610124251
274.670

The product you are viewing cross references to these numbers
999100M9603
Product Information
Product Information
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.



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

999100M9603
99610124151
99610124251
99610733750
99970755440
99610722151
99610634051
99610634054
99610632650
99610632651
99610420102
99610420104

The product you are viewing cross references to these numbers
Special Order item
99610420104
Product Information
Product Information
Engine head gasket. Fits: cylinder 1-3 or 4-6.
2 per engine.

porsche

Fits:
Porsche 987 Boxster S 3.4L 2006-08 (M97.21)
Porsche 987 Boxster S 3.4L RS SPYDER 2008 (M97.22)
Porsche 987C Cayman S 3.4L 2006-08 (M97.21)
Porsche 996 3.6L C2 / C4 / C4S 2002-05 (M96.03)
Porsche 997 C2 / C4 3.6L Coupe/Cabrio 2005-08 (M96.05)

This product supersedes Porsche's old part numbers:
- 99610420102

Click 'Zoom in' for large parts diagram.
Diagram ref no 19

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

99610420104
99610420104
99610420102
808.293

The product you are viewing cross references to these numbers
99610420104/1
Product Information
Product Information
Engine head gasket. Fits: cylinder 1-3 or 4-6.
2 per engine.

elring

Fits:
Porsche 987 Boxster S 3.4L 2006-08 (M97.21)
Porsche 987 Boxster S 3.4L RS SPYDER 2008 (M97.22)
Porsche 987C Cayman S 3.4L 2006-08 (M97.21)
Porsche 996 3.6L C2 / C4 / C4S 2002-05 (M96.03)
Porsche 997 C2 / C4 3.6L Coupe/Cabrio 2005-08 (M96.05)

This product supersedes Porsche's old part numbers:
- 99610420102

Click 'Zoom in' for large parts diagram.
Diagram ref no 19

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

99610420104
99610420104
99610420102
808.293

The product you are viewing cross references to these numbers
F/HG3400H/300M
Product Information
Product Information
Hylomar Gasket 3400 is a modified anaerobic curing, flexible sealant designed to become a Formed in Place (FIP) Gasket when cured. The cured compound has good temperature resistance and high resistance to fretting. The cure is initiated when the compound is in contact with metal ions and in anaerobic conditions. The cure rate and final strength is dependent on the metals being joined and the temperature at which the component is used. The heat generated by a running engine will accelerate the cure.

Typical Applications
Hylomar Gasket 3400 can be used as a gasketing compound between machined surfaces. It is ideal for sealing between mating faces on engines and transmission components where resistance to temperature and vibration are essential.

INSTRUCTIONS FOR USE
Hylomar Gasket 3400 should be applied to clean and dry surfaces, free of contamination such as oil or grease. The compound may be dispensed by hand from cartridge, concertina pack, or via a screen printing system. Once applied the joint should be assembled as soon as practical. Any excess compound can be easily wiped off external surfaces with a clean cloth soaked in Acetone or other suitable solvents.

Typical Physical Properties:

UNCURED PRODUCT
Composition: Methyl-Methacrylate
Colour: Yellow
Viscosity @ 25°C / Brookfield Spindle 6 @ 2.5rpm: 100,000cps
Specific Gravity @ 25°C: 1.10 g/ml
Solvent Content:  None

Specific Gravity g/ml @ 25°C: 1.04
Flash Point: >100°C
Shelf Life: 1 Year @ 4° to 25°C

CURED PRODUCT
Handling Time: 40 minutes
Functional Cure Time: 4 – 6 hours
Full Cure Time : 24 – 72 hours

Shear Strength :  1.5 N/mm²
Mild Steel/Mild Steel BS 5350 Part C5
Aluminium/Aluminium BS 5350 Part C5

Temperature Range: -40° to 150°C

99711024700/2
Product Information
Product Information
Intake manifold gasket.
Sold each - 6 required per car

Fits:
Porsche 996 Carrera 2 / Carrera 4 3.4ltr - 1999 to 2001
Porsche 996 Carrera 2 / Carrera 4 / 4S 3.6ltr - 2002 to 2005

Diagram ref no 2

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

99711024700
99611024750
99711024700

The product you are viewing cross references to these numbers
Special Order item
99970734440
Product Information
Product Information
Chain adjuster sealing o-ring. 18,77 x 1,78
3 per engine. Price is for each.

porsche

Fits:
Porsche 996
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997.1 Gen

Click 'Zoom in' for large parts diagram.
Diagram ref no 25

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

99970734440
99970734440

The product you are viewing cross references to these numbers
99970734440/1
Product Information
Product Information
O-ring - 18.77 x 1.78 - for timing chain adjuster or tensioner. 

Fits:

Porsche 986 Boxster / S 1997-04 - x3 required
Porsche 987 Boxster / S 2005-08 - x3 required
Porsche 987 Cayman / S 2006-08 - x4 required

Porsche 996 Carrera 1998-05 - x3 required
Porsche 997-1 Carrera 2005-08 - x4 required

Diagram ref. 25.



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

99970734440
99970734440

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 20 products)
1 2
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About Gaskets & Sets

Engine Gaskets & Gasket Sets – Precision Sealing for Porsche Engines

Engine gaskets are vital components that ensure your Porsche’s engine operates efficiently and leak-free. Positioned between key engine surfaces such as the cylinder head, intake manifold, and oil pan, gaskets maintain a perfect seal against high temperatures, pressures, and fluids.

At Design911, we offer a comprehensive range of engine gaskets, seals, and complete gasket kits for Porsche models of every generation. Each gasket is crafted from high-quality composite, metal, or elastomer materials to withstand the extreme conditions of high-performance engines — ensuring optimal sealing, reduced oil and coolant leaks, and consistent compression.

Whether you’re rebuilding a classic 911 flat-six or servicing a modern turbocharged Porsche engine, our manufacturer-quality gaskets and complete kits guarantee reliability, performance, and peace of mind.

What Do Engine Gaskets and Gasket Sets Do?

Gaskets play a critical role in ensuring that various engine systems — combustion, lubrication, and cooling — remain properly sealed.

Core Functions:

  • Prevent leaks of oil, coolant, air, and combustion gases.
  • Maintain compression between the engine block and cylinder head.
  • Ensure efficient combustion and proper engine pressure balance.
  • Protect internal components from cross-contamination of fluids.

A properly sealed engine not only improves performance and efficiency but also prevents costly long-term damage.

Why Do Gaskets Fail?

Despite their durability, gaskets naturally degrade over time due to extreme heat cycles, pressure variations, and material fatigue.

Common Causes of Gasket Failure Include:

  • Overheating, causing warping or breakdown of the gasket material.
  • Improper installation or torqueing during assembly.
  • Aging materials that harden or crack with use.
  • Chemical degradation from oil or coolant exposure.
  • Uneven pressure or engine vibration, leading to micro-leaks.

Typical symptoms of gasket failure include oil or coolant leaks, reduced compression, overheating, or visible residue at gasket joints.

Why Replace with Precision-Engineered Gaskets and Kits?

Replacing worn or leaking gaskets is essential to maintain proper engine compression, prevent contamination, and restore overall reliability. Our direct-fit gasket sets and kits are designed to meet or exceed Porsche engineering standards, providing complete sealing solutions for rebuilds and maintenance.

Key Benefits:

  • Restores proper sealing and compression integrity.
  • Prevents oil and coolant leaks for cleaner performance.
  • Enhances efficiency and reliability under load.
  • Manufactured from high-grade, heat- and pressure-resistant materials.
  • Available as individual gaskets or complete kits for full rebuilds.
  • Direct-fit compatibility for a wide range of Porsche models.

Our gasket sets are ideal for engine rebuilds, overhauls, and preventive maintenance, ensuring long-term dependability and peak performance.

Highlights:

  • Complete Porsche engine gasket kits and individual components.
  • Precision-engineered for exact sealing performance.
  • Constructed from advanced composite, metal, and elastomer materials.
  • Resistant to heat, pressure, and chemical exposure.
  • Suitable for classic air-cooled and modern water-cooled engines.
  • Ensures leak-free operation and lasting reliability.

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