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Chains & Tensioners

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958109465D
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Product Information
Timing chain, Right upper.

Fits:
Porsche 970 Panamera 3.0L HYBRID 2011-16
Porsche 958 Cayenne 3.0L HYBRID 2010-18

Diagram ref no 34

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Related, superseded, cross reference or alternative numbers for comparison.

958109465D
958109465D
95810546520

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958109465D/1
Product Information
Product Information
Timing Chain, Right Upper.
The IWIS Timing Chain, Right Upper is a replacement internal engine timing component for compatible Porsche applications. Positioned within the right upper section of the engine timing system, it forms part of the mechanical chain drive responsible for maintaining accurate synchronisation between associated engine timing components.

Fits:
  • Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
  • Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
  • Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16  

Diagram Ref No 34

The timing chain operates continuously whenever the engine is running. Although manufactured for long service life, gradual wear can develop at the chain links, pins and contact surfaces, as well as in associated guides, tensioners and sprockets.

A worn, elongated or damaged timing chain can develop excessive slack, create abnormal mechanical noise and affect timing accuracy. If deterioration becomes severe enough for the chain to jump, derail or fail, significant internal engine damage may result.

What This Product Does:
The right upper timing chain forms part of the engine's mechanical timing drive.

Its role is to transfer rotational movement between associated timing components while maintaining their required mechanical relationship.

This helps support:

  • Accurate engine timing
  • Correct synchronisation of associated components
  • Reliable transfer of rotational drive
  • Accurate camshaft drive where applicable
  • Correct valve timingSmooth engine operation
  • Stable combustionConsistent engine performance

The chain must remain correctly tensioned, lubricated and properly engaged with its associated sprockets for dependable operation.

Symptoms Of Wear Or Failure:
Possible signs of timing-chain or associated timing-system deterioration include:

  • Metallic rattling from the timing area
  • Clattering or chain noise
  • Rattle during cold starts
  • Excessive chain slack
  • Timing-chain elongation
  • Mechanical noise at idle
  • Noise that changes with engine speed
  • Rough or irregular engine operation
  • Unstable idleDifficult starting
  • Reduced engine performance
  • Engine warning light
  • Timing-related diagnostic fault codes
  • Crankshaft/camshaft correlation faults where applicable
  • Misfires or irregular combustion
  • Visible chain wear during inspection
  • Worn or damaged chain guides
  • Abnormal sprocket wear
  • Metal or plastic debris in the engine oil or oil filter

These symptoms can also be produced by other timing-system or internal engine faults, so accurate diagnosis is important before replacing individual components.

Why Replacement Matters:
The right upper timing chain is an important part of the engine's mechanical timing system.

Replacing a confirmed worn, elongated or damaged IWIS Timing Chain, Right Upper can help:

  • Restore dependable timing-chain operation
  • Maintain accurate mechanical synchronisation
  • Restore correct camshaft drive where applicable
  • Reduce excessive chain slack
  • Reduce abnormal timing-chain noise
  • Protect associated guides and sprockets
  • Reduce the risk of timing deviation
  • Reduce the risk of chain derailment
  • Reduce the risk of the chain jumping
  • Support smooth engine operation
  • Protect expensive internal engine components

Continued operation with a confirmed timing-chain problem can allow deterioration to progress and increase the risk of a considerably more expensive engine repair.



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

958109465D
958109465D
95810546520

The product you are viewing cross references to these numbers
DISPLAYING 17 to 18 (of 18 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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