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Gaskets & Sets

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DISPLAYING 17 to 26 (of 26 products)
1 2
9A21055
Product Information
Product Information
Valve cover gasket.

Fits:
Porsche 991.2 Carrera 2017 - 2018

Diagram ref no 9

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Related, superseded, cross reference or alternative numbers for comparison.

9A21055
887.110
887.120
9A210557100
9A210557101
9A210558100
9A210558101

The product you are viewing cross references to these numbers
Special Order item
9A21055
Product Information
Product Information
Valve cover gasket
Genuine Porsche OE valve cover gaskets for Porsche 991.2 Carrera models. These original Porsche gaskets seal the valve cover to the cylinder head, helping prevent engine oil leaks and maintain correct sealing of the upper engine assembly. They are sold separately and correspond to different cylinder banks: 9A21055710  for cylinders 1–3  and 9A210558101 for cylinders 4–6.  These gaskets are used between the valve cover and cylinder head to create an oil-tight seal.

Fits:
Porsche 991.2 Carrera 2017 - 2018

Diagram ref no 9

Functions
•  Seals the valve cover to the cylinder head
•  Helps prevent engine oil leaks from the upper engine area
•  Helps contain oil mist and vapour within the valve cover assembly
•  Maintains correct sealing around the camshaft/valvetrain area
•  Protects surrounding engine components from oil seepage
•  Supports clean and reliable engine operation
•  Provides OE Porsche fitment, material quality and sealing performance
•  Suitable for valve cover removal, resealing or engine repair work.

Why Replace This Part?
Valve cover gaskets are exposed to heat, oil, pressure changes and repeated engine heat cycles. Over time, the gasket can harden, flatten, crack or lose elasticity, allowing oil to seep from the valve cover area. Replacing the gasket with a Genuine Porsche OE valve cover gasket helps restore the correct factory seal and reduces the risk of oil leaks, burning oil smell, smoke from oil contacting hot components or contamination around the engine bay.

When to Replace This Part
•   If there is oil leaking from the valve cover area
•   If oil is visible around the cylinder head or upper engine casing
•   If there is a burning oil smell from oil contacting hot engine or exhaust components
•   During valve cover removal or refitting
•   During cylinder head, camshaft or upper engine service work
•   If the original gasket is hardened, flattened, cracked or damaged
•   When resealing the engine as part of preventative maintenance.

Where It Fits on the Car
These gaskets fit in the engine cylinder head / valve cover area. They are installed between the valve cover and cylinder head on the relevant cylinder bank. The gaskets are bank-specific, so the correct part number must be matched to the correct side/cylinder bank before installation.

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

9A21055
9A210557100
9A210557101
9A210558100
9A210558101

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



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

703141410
703141410
PCG04330087
70-31414-10

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Special Order item
0PB121139
Product Information
Product Information
Water pump tube gasket.

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 987.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 991.1 Carrera / Turbo 2013-16
Porsche 991.2 Carrera / Turbo 2017>>
Porsche 991 GT3 / GT3 RS / R 2014-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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

0PB121139
9A110632500
0PB121139

The product you are viewing cross references to these numbers
0PB121139/1
Product Information
Product Information
Water pump tube gasket.

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 987.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 991.1 Carrera / Turbo 2013-16
Porsche 991.2 Carrera / Turbo 2017>>
Porsche 991 GT3 / GT3 RS / R 2014-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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

0PB121139
9A110632500
0PB121139
273.730

The product you are viewing cross references to these numbers
Special Order item
0PB121149
Product Information
Product Information
Water pump tube gasket.

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 987.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 991.1 Carrera / Turbo 2013-16
Porsche 991.2 Carrera / Turbo 2017>>
Porsche 991 GT3 / GT3 RS / R 2014-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 14

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

0PB121149
9A110632600
0PB121149
273.750

The product you are viewing cross references to these numbers
0PB121149/1
Product Information
Product Information
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 987.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 991.1 Carrera / Turbo 2013-16
Porsche 991.2 Carrera / Turbo 2017>>
Porsche 991 GT3 / GT3 RS / R 2014-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 14

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

0PB121149
9A110632600
0PB121149
273.750

The product you are viewing cross references to these numbers
0PB121228B/1
Product Information
Product Information
Water tube gasket, cyl 1-3.

Fits:
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981C Cayman 2014-16
Porsche 981C Cayman GT4 2016
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017-18
Porsche 991 Turbo 2014-18

Diagram ref no 13

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0PB121228B
0PB121228B
0PB121228
9A110231240
273.800
9A110231200

The product you are viewing cross references to these numbers
Special Order item
0PB121327D
Product Information
Product Information
Water tube gasket. Cylinders 4-6

Fits:
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017-18
Porsche 991 Turbo 2014-18

Diagram ref no 3

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

0PB121327D
0PB121327A
9A110232220
0PB121327B
0PB121327D

The product you are viewing cross references to these numbers
0PB121327D/1
Product Information
Product Information
Water tube gasket. Cylinders 4-6

Fits:
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017-18
Porsche 991 Turbo 2014-18

Diagram ref no 3

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

0PB121327D
0PB121327A
9A110232220
0PB121327B
0PB121327D

The product you are viewing cross references to these numbers
DISPLAYING 17 to 26 (of 26 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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