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Gaskets & Sets

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C14077-040
Product Information
Product Information
Cylinder head gasket - 104mm Bore size / .040 inch thick
MLS (Multi Layer Steel) version

Price is for each, 2 required per car

cometic

Fits
Porsche 996 Turbo
Porsche 996 GT3
Porsche 996 GT2

Engine Codes
M96.70 - Turbo 3.6ltr /309 KW
M96.70S - GT2 3.6ltr /340 KW
M96.70SL - GT2 3.6ltr /340 KW
M96.76 - GT3 3.6 /265 KW
M96.79 - GT3 and GT3 RS 3.6ltr /280 KW

Please check Bore Size and Thickness before ordering

Material: MLS (Multi Layer Steel)
Compressed Thickness: .040 inch
Bore Shape: Round
Bore Size (MM): 104
Number of layers: 3
Orientation: None (fits both banks)

Gaskets are produced to order
Estimated Delivery Time: 5-6 Weeks


MLS Gaskets
The embossed outer layers of our head gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface
finishes. The MLS Gasket (Multi-Layer Steel) features an active combustion seal on multiple layers.

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Related, superseded, cross reference or alternative numbers for comparison.

C14077-040
99710417072
99710417071
99610417072

The product you are viewing cross references to these numbers
Special Order item
99610519271
Product Information
Product Information
Timing chain case gasket. Sold each.

porsche

Fits:
Porsche 996 Turbo 2001-05
Porsche 996 GT3 2000-05
Porsche 997 Turbo 2007-09
Porsche 997 GT2 RS 2011
Porsche 997 GT3 / GT3 RS 2007-11

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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Related, superseded, cross reference or alternative numbers for comparison.

99610519271
99610519271
235.660

The product you are viewing cross references to these numbers
99610519271/1
Product Information
Product Information
Timing chain case gasket. Sold each.

elring

Fits:
Porsche 996 Turbo 2001-05
Porsche 996 GT3 2000-05
Porsche 997 Turbo 2007-09
Porsche 997 GT2 RS 2011
Porsche 997 GT3 / GT3 RS 2007-11

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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Related, superseded, cross reference or alternative numbers for comparison.

99610519271
99610519271
235.660

The product you are viewing cross references to these numbers
703141410
Product Information
Product Information
Victor-Reinz Reinzosil gasket maker valve cover oil sump sealant 300°C 70ml

victorreinz

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Related, superseded, cross reference or alternative numbers for comparison.

703141410
703141410
PCG04330087
70-31414-10

The product you are viewing cross references to these numbers
DISPLAYING 17 to 20 (of 20 products)
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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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