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Porsche > Cayman 987C / 981C (2005-2016) > Cayman GT4 3.8L 2015-16 > Engine Rebuild Parts > Camshaft covers / Gaskets >

Valve cover retaining spring clamp. Porsche 356 / 912  ❭  36904240

Valve cover retaining spring clamp. Porsche 356 / 912 - 36904240, NLA-04-240
2
Check vehicle fitment
36904240/1
Product Information
Product Information
Valve Cover Retaining Spring (Bail).
Secure your Porsche valve cover correctly with this OE Match Valve Cover Retaining Spring (Bail), manufactured as a direct replacement. Produced to OE-style specifications, this retaining spring is engineered to apply the correct clamping force to the valve cover, ensuring the gasket remains evenly compressed against the cylinder head to maintain a reliable oil-tight seal. Manufactured from durable spring steel for long service life, it is an ideal replacement during routine servicing, engine repairs, or restoration work.
Sold Each.
x2 Required Per Car.

Fits:
  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 356C 1963-65  

Diagram Ref No 3

Over time, the original retaining spring can lose tension through repeated heat cycles, corrosion, fatigue, or incorrect removal and installation. A weakened or distorted spring may allow the valve cover to move, reducing gasket compression and increasing the likelihood of oil leaks. Replacing the retaining spring restores the correct clamping pressure, helping to maintain effective sealing and reliable engine operation. This OE Match component is ideal for Porsche maintenance, repairs, and restoration projects.  

What This Product Does:
  • Secures the valve cover firmly to the cylinder head.
  • Applies consistent clamping pressure to the valve cover gasket.
  • Helps maintain an oil-tight seal around the valve train.
  • Prevents movement of the valve cover during engine operation.
  • Replaces weakened, corroded, or distorted retaining springs.
  • Supports reliable engine sealing and leak prevention.
  • Provides an OE-style fit for straightforward installation.

Symptoms Of Wear Or Failure:
  • Oil leaks around the valve cover.
  • Loose or poorly secured valve cover.
  • Reduced tension in the retaining spring.
  • Corrosion, cracking, or distortion of the spring.
  • Uneven gasket compression.
  • Oil residue on the cylinder head or heat exchangers.
  • Damage identified during engine servicing or valve adjustment.

Why Replacement Matters:

  • The valve cover retaining spring is a simple but essential component that provides the clamping force required to keep the valve cover securely in place and maintain consistent compression of the gasket. If the spring loses its tension or becomes damaged, the valve cover can shift slightly during engine operation, allowing oil to escape and reducing the effectiveness of the gasket seal.
  • Replacing a worn retaining spring restores the correct clamping pressure, helping to prevent oil leaks, maintain a clean engine, and ensure long-term sealing performance. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Valve Cover Retaining Spring delivers reliable fit, durability, and performance for Porsche maintenance, repairs, and restoration projects.



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

36904240
36904240
NLA-04-240

The product you are viewing cross references to these numbers
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Engine cam cover gasket. Porsche 997.2 / 981 Boxster / 981 Cayman / 991.1 - 9A110573103, 9A110573102, 283.850, 283.840, 9A110573203, 9A110573202
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Engine cam cover gasket. Porsche 997.2 / 981 Boxster / 981 Cayman / 991.1
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Product Information
Product Information
Engine valve cover gasket.

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2013-16
Porsche 981 Boxster Spyder 2016
Porsche 987C.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981C Cayman GT4
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 991.1 Carrera / Turbo 2012-16

Diagram ref no 9

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

9A110573
9A110573103
9A110573102
283.850
283.840
9A110573203
9A110573202

The product you are viewing cross references to these numbers
Engine Cam Cover Gasket. Porsche 997.2 / 981 Boxster / 981 Cayman / 991.1 - 9A110573103, 9A110573102, 9A110573203, 9A110573202
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Engine Cam Cover Gasket. Porsche 997.2 / 981 Boxster / 981 Cayman / 991.1
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Product Information
Product Information
Engine Cam Cover Gasket.
The OE Match Engine Cam Cover Gasket is a high-quality replacement engine sealing component designed to provide a secure, leak-free seal between the camshaft cover and cylinder head. Manufactured to OE specifications for fit, durability and sealing performance, these gaskets help prevent engine oil leaks while protecting critical valvetrain and camshaft components from contamination.

Fits:

  • Porsche Boxster 987 MKII 2.9L 2009-12
  • Porsche Boxster S 987 MKII 3.4L 2009-12
  • Porsche Boxster 981 2.7L 2012-16
  • Porsche Boxster 981 S / GTS 3.4L 2012-16
  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
  • Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
  • Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12
  • Porsche Cayman 2.7L 981 2013-16
  • Porsche Cayman S / GTS 3.4L 981 2013-16
  • Porsche Cayman GT4 3.8L 2015-16  

Diagram Ref No 9

Constructed from premium heat-resistant gasket materials, the cam cover gaskets are engineered to withstand continuous exposure to engine oil, high operating temperatures, pressure fluctuations and vibration. They play a vital role in maintaining engine cleanliness, preserving lubrication efficiency and ensuring long-term engine reliability.

What This Product Does:
  • Creates a secure seal between the cam cover and cylinder head.
  • Prevents engine oil leaks from the valvetrain area.
  • Helps maintain correct engine oil levels and lubrication.
  • Protects camshaft and valvetrain components from contamination.
  • Supports efficient engine operation and reliability.
  • Helps maintain engine cleanliness.
  • Contributes to long-term engine protection and performance.

Symptoms Of Wear Or Failure:
  • Visible oil leaks around the cam cover.
  • Oil residue on the cylinder head or surrounding engine components.
  • Burning oil smell from oil contacting hot engine parts.
  • Oil drips beneath the vehicle.
  • Low engine oil levels between services.
  • Smoke from the engine bay caused by oil leakage.
  • Dirt accumulation around leaking gasket areas.
  • Oil contamination of ignition components in certain applications.
  • Increased engine bay contamination from leaking oil.

Why Replacement Matters:
  • Cam cover gaskets operate in demanding conditions and are constantly exposed to engine heat, oil, vibration and thermal cycling. Over time, gasket materials can harden, shrink, crack or lose elasticity, reducing their ability to maintain an effective seal.
  • A failing cam cover gasket can allow engine oil to escape from the cylinder head area, resulting in oil loss, contamination of surrounding components and reduced engine cleanliness. If left unresolved, ongoing oil leaks can contribute to reduced lubrication efficiency, increased engine wear and potential damage to nearby electrical or ignition system components.
  • Replacing a worn cam cover gasket restores proper sealing, prevents oil leaks and helps maintain the integrity of the engine lubrication system. An OE Match replacement provides factory-style fitment, dependable sealing performance and long-term durability, ensuring reliable protection for your Porsche engine and valvetrain assembly.



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

9A110573
9A110573103
9A110573102
9A110573203
9A110573202

The product you are viewing cross references to these numbers