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Chains & Tensioners

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DISPLAYING 17 to 20 (of 20 products)
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Special Order item
PAB109465
Product Information
Product Information
Timing chain.

Fits:
Porsche 955 Cayenne 3.2L 2004-06
Porsche 957 Cayenne 3.6L 2008-10
Porsche 958 Cayenne 3.6L 2011-18

Diagram Ref No 1

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Related, superseded, cross reference or alternative numbers for comparison.

PAB109465
95510546500
95510546501
PAB109465

The product you are viewing cross references to these numbers
Special Order item
PAB109503
Product Information
Product Information
Timing chain for camshaft.


Fits:
Porsche 955 Cayenne 3.2L 2004-06
Porsche 957 Cayenne 3.6L 2008-10
Porsche 958 Cayenne 3.6L 2011-18

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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Related, superseded, cross reference or alternative numbers for comparison.

PAB109503
95510550301
95510516900
95510550300
PAB109503

The product you are viewing cross references to these numbers
PAB109503/1
Product Information
Product Information
Timing chain for camshaft.



Fits:
Porsche 955 Cayenne 3.2L 2004-06
Porsche 957 Cayenne 3.6L 2008-10
Porsche 958 Cayenne 3.6L 2011-18

Chain Type: Simplex,
Timing Chain Size: G68V,
No. of chain links: 98,
Fitting Position: Front,
Chain Type: Closed chain,

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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Related, superseded, cross reference or alternative numbers for comparison.

PAB109503
95510550301
95510516900
95510550300
PAB109503

The product you are viewing cross references to these numbers
Special Order item
95510412201
Product Information
Product Information

Upper Timing Chain Cover.
The Porsche Upper Timing Chain Cover 95510412201 is a genuine Porsche replacement engine cover used on selected Porsche Cayenne 955 models with the 3.2-litre M02.2Y VR6 engine.

Fits:

  • Porsche 955 Cayenne 3.2L V6 2004-06


Diagram Ref No 12

The cover encloses the upper section of the engine's timing-chain and camshaft-drive area, protecting the internal timing components while helping retain engine oil within the lubricated timing assembly.

Correct sealing of the cover is important because the timing-chain system operates inside an oil-lubricated environment. A cracked, warped or damaged cover can allow engine oil to escape and contamination to enter the timing area.

What This Product Does:
The upper timing chain cover forms part of the protective enclosure surrounding the engine's timing-chain system.

Its main functions include:

  • Enclosing the upper timing-chain mechanism
  • Helping retain lubricating engine oil
  • Protecting timing components from dirt and contamination
  • Providing a secure sealing surface against the engine
  • Maintaining the original timing-chain housing structure
  • Supporting correct installation of associated engine components
  • Preventing uncontrolled oil leakage from the timing area

The cover itself does not tension or guide the timing chain, but it provides the sealed housing required for the timing system to operate correctly.

Symptoms Of Wear Or Failure:
The timing chain cover is a rigid component and does not normally wear in the same way as a chain, bearing or seal.

However, it can become damaged through age, overheating, impact, previous repair work or incorrect installation.

Possible symptoms include:

  • Engine oil leaking around the timing cover
  • Oil staining on the front or upper engine area
  • Wetness along the cover sealing joint
  • Burning-oil smell
  • Oil reaching nearby hot engine components
  • Gradually falling engine oil leve
  • Cracks in the cover
  • Damaged mounting points
  • Distorted or warped sealing surfaces
  • Broken mounting bosses
  • Repeated leakage after resealing
  • Visible damage following previous engine repairs

Oil leakage around the timing-cover area should be diagnosed carefully, as nearby gaskets and seals can produce similar symptoms.

Why Replacement Matters:
A cracked or badly distorted timing cover can result in continued engine-oil leakage even if fresh sealing material is applied.

Continued operation with a leaking cover may contribute to:

  • Falling engine oil level
  • Oil contamination of surrounding components
  • Burning-oil smell
  • Oil reaching belts or electrical components
  • Increased dirt accumulation around the engine
  • Reduced protection of the timing-chain mechanism
  • Greater risk of insufficient lubrication if oil loss becomes severe

Replacing a damaged cover restores the physical enclosure and sealing surface required by the timing assembly.



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

95510412201
95510412201
95510412200

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

Precision Timing Chains & Tensioners – Engine Synchronisation and Reliability for Porsche Models

The timing chain system is one of the most critical components of a Porsche engine, ensuring perfect synchronisation between the crankshaft and camshafts. This precise coordination allows valves to open and close at the right moment, maintaining smooth power delivery, fuel efficiency, and long-term engine health.

At Design911, we supply a comprehensive range of precision-engineered timing chains, guides, and hydraulic tensioners designed to meet or exceed manufacturer performance standards. Each component is manufactured from high-strength materials for exceptional wear resistance and durability — vital for high-revving, performance-oriented Porsche engines.

What Do Timing Chains and Tensioners Do?

A timing chain connects the crankshaft to the camshafts, ensuring accurate valve timing. The tensioner keeps the chain taut to prevent slack, vibration, or noise, maintaining precise timing under all load conditions.

Core Functions:

  • Synchronise engine timing between the camshaft and crankshaft.
  • Maintain valve timing accuracy for optimal combustion and power.
  • Prevent chain slack and noise through hydraulic or spring-loaded tensioning.
  • Ensure long-term reliability in both performance and everyday driving.

Together, these components preserve the exacting standards of Porsche engine operation — vital for both power and longevity.

Why Do Timing Chains and Tensioners Fail?

Over time, wear, oil degradation, and heat cycles can cause timing components to deteriorate. When neglected, they may stretch, seize, or lose tension — leading to severe engine damage.

Common Causes of Failure Include:

  • Chain stretch or elongation, resulting in timing misalignment.
  • Worn or leaking hydraulic tensioners, causing chain rattle on start-up.
  • Contaminated or degraded engine oil, accelerating wear.
  • Broken chain guides from heat stress or material fatigue.
  • Insufficient oil pressure, reducing hydraulic tensioner performance.

A failing timing chain system can lead to poor performance, rough idling, check-engine lights, or — in extreme cases — catastrophic valve-to-piston contact.

Why Replace with Performance-Grade Timing Components?

Replacing aging timing components with manufacturer-quality parts ensures reliable valve timing, smoother operation, and peace of mind.

Key Benefits:

  • Restores precise valve timing for peak performance and efficiency.
  • Prevents engine noise and vibration caused by chain slack.
  • Protects against catastrophic engine damage due to chain failure.
  • Constructed from heat-treated, high-grade steel for long service life.
  • Engineered to match original timing profiles for Porsche engines.
  • Perfect fitment for classic air-cooled and modern water-cooled models.

Whether performing preventive maintenance or a complete rebuild, these timing chains and tensioners deliver race-ready reliability with road-tested durability.

Highlights:

  • Precision-engineered timing chains, guides, and tensioners for Porsche engines.
  • Restores timing accuracy and eliminates start-up rattle or misfire issues.
  • Built from heat-treated alloy steel for maximum longevity.
  • Hydraulic and mechanical tensioners available for various Porsche models.
  • Ideal for performance rebuilds and preventative maintenance.
  • Compatible with air-cooled and water-cooled Porsche engines.

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