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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

Chains & Tensioners

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DISPLAYING 17 to 26 (of 26 products)
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Special Order item
99310708800
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Oil bridge for chain tensioner.
Price is EACH.

porsche

Fits:
Porsche 993 1995-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 21

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99310708800

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99310708800/1
Product Information
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Oil bridge for chain tensioner.
Price is EACH.

oematch

Fits:
Porsche 993 1995-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 21

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99310708800
99310708800

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96410502900
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Slide rail for timing chain. LEFT

porsche

Fits:
Porsche 964 1989-94
Porsche 993 1995-98

Click 'Zoom in' for large parts diagram.
Diagram Ref No 16.

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96410502900
96410502900

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96410502900/1
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Product Information
Slide rail for timing chain. LEFT

oematch

Fits:
Porsche 964 1989-94
Porsche 993 1995-98

Click 'Zoom in' for large parts diagram.
Diagram Ref No 16.

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96410502900
18105
96410502900

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96410503000
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Slide rail for timing chain.
RIGHT

porsche

Fits:
Porsche 964 1989-94
Porsche 993 1995-98

Click 'Zoom in' for large parts diagram.
Diagram Ref No 16.

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96410503000
18106
96410503000

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96410503000/1
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Product Information
Slide rail for timing chain, RIGHT.
This timing chain guide rail is a direct-fit replacement for Porsche 964 and 993 engines. It ensures the timing chain runs smoothly and stays properly aligned. Built to factory standards, it restores reliability and protects against wear or damage.

Fits:
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998

Diagram Ref No 16.

Position: Mounted along the timing chain assembly inside the crankcase, alongside the chain tensioner and sprockets.
• Function: The guide rail runs parallel to the timing chain, keeping it on its correct path between the crankshaft sprocket and camshaft sprockets, while working in conjunction with the chain tensioner to maintain stability.

Over time, guide rails can degrade, crack, or lose their smooth surface due to constant chain contact and engine heat. A compromised rail risks chain misalignment, noisy operation, or even serious engine damage. Replacing restores factory accuracy and reliability, protecting your Porsche’s performance and longevity.

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96410503000
96410503000

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99310502201
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Timing chain adjuster cover. Fits: Left or right. Sold each.

porsche

Fits:
Porsche 993 1994-98

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Diagram ref no 11

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SR222
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Timing chain strap / support for Porsche 911

stomski

When assembling the case halves on the 911 engine STOMSKI RACING's SR222 Timing Chain Strap will prove instrumental in supporting the chain to allow easier mating of the halves. Proper length, radius bend, tension, and quality steel insure that this tool will provide reliable and consistent support for all your engine builds.

Fits
• SR222 for all 911 engines
Special Order item
96410517703
Product Information
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Timing chain tensioner gasket. Sold each.

porsche

Fits:
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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96410517703
96410517703
577.960

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96410517703/1
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Timing chain tensioner gasket. Sold each.

elring

Fits:
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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96410517703
96410517703
577.960

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DISPLAYING 17 to 26 (of 26 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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