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Chains & Tensioners

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DISPLAYING 1 to 16 (of 27 products)
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99310552900/1KIT
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Product Information
Camshaft timing chains. Fits left & right CLOSED TYPE.

oematch

TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two

Fits:
Porsche 911 1965-89
Porsche 964 1991-93
Porsche 993 1994-97

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99310552900
99310552900
90110552900
91110552900

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91110522206/1KIT
Product Information
Product Information
Chain guide rail set. Black.
1x Guides, timing chain Piece - 91110522205
5x Guides, timing chain Piece - 91110522206

oematch

Fits:
Porsche 911 1966-89

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91110522206
91110522206
91110522205
13384

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Special Order item
91110552951
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Product Information
Camshaft Timing Chain With Master Link.

Fits:
Porsche 911 1965>>1989
Porsche 964 1991>>1993

Diagram Ref No 1

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91110552951
91110552950
90110552950
91110552951

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Special Order item
99310552900
Product Information
Product Information
Camshaft timing chain. Fits left or right CLOSED TYPE.

porsche

TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two

Fits:
Porsche 911 1965-89
Porsche 964 1991-93
Porsche 993 1994-97

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Related, superseded, cross reference or alternative numbers for comparison.

99310552900
99310552900
90110552900
91110552900
09425

The product you are viewing cross references to these numbers
99310552900/1
Product Information
Product Information
Camshaft Timing Chain. Fits left or right CLOSED TYPE.

oematch

TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two

Fits:
Porsche 911 1965-89
Porsche 964 1991-93
Porsche 993 1994-97

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Related, superseded, cross reference or alternative numbers for comparison.

99310552900
99310552900
90110552900
91110552900
09425
50031696
50032491

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90110552902/1
Product Information
Product Information
Camshaft Timing Chain. Fits left or right CLOSED TYPE.  Reinforced for Motorsport

oematch

TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two

Fits:
Porsche 911 1965-89
Porsche 964 1991-93
Porsche 993 1994-97

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

90110552902
99310552900
90110552900
91110552900
90110552902

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91110552951/1
Product Information
Product Information
Camshaft timing chain. SPLIT TYPE.

oematch

Fits:
Porsche 911 1965-89
Porsche 964 1991-93

TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two .

Chain Type: Duplex,
Timing Chain Size: D67ZN
No. of chain links: 98

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91110552951
91110552950
90110552950
91110552951
09426

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Special Order item
91110522206
Product Information
Product Information
Chain Guide Rail, Black. 5 per car.

porsche

Fits:
Porsche 911 1966-89

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91110522206
91110522206
91110522207

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91110522206/1
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Product Information
Chain Guide Rail, Black. 5 per car.

oematch

Fits:
Porsche 911 1966-89

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91110522206
91110522206
91110522207

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91110522205
Product Information
Product Information
Chain guide rail, Brown. 1 per car.

porsche

Fits:
Porsche 911 1966-89

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91110522205
91110522205
90110522202
90110522203
91110522204

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91110522205/1
Product Information
Product Information
Chain guide rail, Brown. 1 per car.

oematch

Fits:
Porsche 911 1966-89

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91110522205
91110522205
90110522202
90110522203
91110522204

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91110590101/1
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Product Information
Chain tensioner repair kit Porsche 911 65-83 / 914 for 93010504900 & 93010505300 non-hydraulic Tensioners

One kit required per tensioner

oematch

Fits:
Porsche 911 1965-83
Porsche 914

Related reference numbers
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91110590101
93010505803
93010504900
9301050530
91110590101

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91110590101
Product Information
Product Information
Chain tensioner repair kit Porsche 911 65-83 / 914 for 93010504900 & 93010505300 non-hydraulic Tensioners

One kit required per tensioner

porsche

Fits:
Porsche 911 1965-83
Porsche 914

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91110590101
93010505803
93010504900
9301050530
91110590101

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90110505300/1
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Product Information
Chain tensioner safety lock kit.

original

Fits:
Porsche 911 1965-83

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90110505300
90110505300

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93010505304
Product Information
Product Information
Timing Chain Tensioner. Standard type not the upgrade type.
The genuine Porsche 93010505304 Timing Chain Tensioner is the original mechanical unit used in early air-cooled 911 and 930 engines. Precisely engineered by Porsche, it maintains consistent tension in the timing chain, ensuring smooth, accurate cam timing and quiet operation. Built with precision-machined internal components and corrosion-resistant materials, this OEM tensioner guarantees reliability and performance identical to factory assembly standards — perfect for concours restorations and authentic rebuilds.
Sold each. Fits Left or Right Side

Fits:
Porsche 911 1968 - 1983
Porsche 930 Turbo

Diagram ref no 10

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93010505304
93010505300
93010505304

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93010505304/1
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Product Information
Timing Chain Tensioner / Chain Adjuster. Standard type not the upgrade type.
The timing chain tensioner product code 930 105 053 04 is a precision-engineered, direct-fit replacement for the original mechanical tensioner used in early air-cooled Porsche 911 and 930 engines. Designed to maintain consistent chain tension, it effectively reduces slack, minimizes noise, and ensures precise valve timing under all driving conditions. Built to original Porsche specifications with durable materials and exact geometry, this OE Match unit delivers long-lasting reliability and prevents premature wear of the timing components.
Sold each. 
Fits Left or Right Side

Fits:
Porsche 911 1968 - 1983
Porsche 930 Turbo

Diagram ref no 10

•  Position: Mounted to the engine block in the timing chain system
•  Function: Acts as a spring-loaded or mechanical adjuster to eliminate chain slack, control vibration, and maintain chain alignment
•  Symptoms of Failure: Chain rattle, timing inaccuracy, engine noise
•  Benefits Prevents: chain slack, reduces wear, restores quiet and accurate timing performance
•  Installation: Direct-fit replacement – compatible with original guides and sprockets

A worn or failing chain tensioner can lead to chain slack, rattling noise, timing variation, and accelerated wear of chain guides, sprockets, or shafts.

Replace the tensioner when:
•  Rebuilding or disassembling the engine
•  Noticeable noise or slack in the timing chain
•  During preventive maintenance on high-mileage engines

Using high-precision replacement restores proper tension, reduces noise, and protects your timing system components.

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

93010505304
93010505300
93010505304

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DISPLAYING 1 to 16 (of 27 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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