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Chains & Tensioners

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DISPLAYING 1 to 16 (of 21 products)
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ENGINEKIT15
Product Information
Product Information

Comprehensive Engine Timing Chain Kit for PORSCHE 996 3.6L M96.03 / 997 3.6L M96.05 / 997 3.8L M97.01 / Boxster / Cayman

Restore the integrity of your M96.03 / M96.05 / M97.01 engine’s timing system with this complete timing chain kit. 

Fits: 

  •       Porsche Boxster 986 2.7L 2003-04

  •       Porsche Boxster S 986 3.2L 2003-04
  •       Porsche Boxster 987 2.7L 2005 -08/08
  •       Porsche Boxster 987 S 3.2/3.4L 2005-08/08
  •       Porsche 996 C2 3.6L 09/01-2005
  •       Porsche 996 C4 3.6L 09/01-2005
  •       Porsche 996 C4S 3.6L 09/01-2005
  •       Porsche 997 MK1 Carrera 2 3.6L 2005-08
  •       Porsche 997 MK1 Carrera 2S 3.8L 2005-08
  •       Porsche 997 MK1 Carrera 4 3.6L 2005-08
  •       Porsche 997 MK1 Carrera 4S 3.8L 2005-08
  •       Porsche Cayman 2.7L 987C 2006-08
  •       Porsche Cayman S 3.4L 987C 2005-08


What is an Engine Timing Chain?

The timing chain is a vital component in an internal combustion engine, responsible for synchronizing the rotation of the crankshaft and camshafts. This precise coordination ensures that engine valves open and close at the correct times during each cylinder’s intake and exhaust strokes, allowing for smooth performance and efficiency.

While designed to last the lifetime of the engine, timing chains can wear, stretch, or become damaged. A worn chain can alter engine timing, strain the tensioners, and, if left unaddressed, lead to catastrophic engine damage and costly repairs. 

Signs of Timing Chain Kit Failure

Noise: A failing timing chain often produces a rattling or slapping noise, particularly noticeable at startup, idle, or during acceleration.

Reduced Performance: Stretched or worn chains can disrupt engine timing, resulting in sluggish acceleration, reduced power, or poor overall performance.



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Related, superseded, cross reference or alternative numbers for comparison.

ENGINEKIT15
99610515201
99610517158
99610516651
90007548601
99610518058
99610516555
99610518602
99610518802
9A700836500
99610515600
99610515801
99610505401
99610516804
99610516400

The product you are viewing cross references to these numbers
Special Order item
99610530307
Product Information
Product Information
Actuator Camshaft. Porsche 996 / 986 / 997 / 987 / 987C

porsche

Fits:
Porsche 996 C2 / C4 / C4S 2002>>
Porsche 986 Boxster 2.7L / 3.2L 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 997 2005-08
Porsche Carrera Gt 2004-06


This product supersedes Porsche's old part numbers:
- 99610530302
- 99610530303
- 99610530304
- 99610530305


Click 'Zoom in' for large parts diagram.
Diagram Ref No 41

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

99610530307
99610530306
99610530303
99610530305
99610530307

The product you are viewing cross references to these numbers
99610530307/1
Product Information
Product Information
Actuator Camshaft. A solenoid component for the Variable Camshaft Timing (VarioCam Plus) system, used to adjust camshaft timing for optimal performance. Serves the front (intake/exhaust timing) of the VarioCam system, typically requiring two units per engine (one per bank)

Fits:
Porsche 996 C2 / C4 / C4S - 2002 to 2005
Porsche 986 Boxster 2.7ltr / 3.2ltr - 1997 to 2004
Porsche 987 Boxster - 2005 to 2008
Porsche 987C Cayman - 2005 to 2008
Porsche 997 - 2005 to 2008
Porsche Carrera Gt - 2004 to 2006

Diagram Ref No 41

This product supersedes Porsche's old part numbers:
99610530302, 99610530303, 99610530304, 99610530305, 99610530306, 99610530307

Common issues or symptoms:
Rough idle / misfires: Faulty actuator disrupts precise valve timing, leading to uneven idling or misfires.

Reduced engine performance: Loss of power or hesitation at certain RPMs can be linked to improper camshaft adjustment Check Engine Light (CEL), often triggered when the engine control unit (ECU) detects misalignment or malfunction in camshaft timing - very common with actuator failure.

Faulty actuator disrupts precise valve timing, leading to uneven idling or misfires Diagnostic Trouble Codes (DTCs): Codes like P0010, P0011, P0012, P0013, P0014 often point to camshaft actuator or timing issues. They indicate conditions such as stuck timing advance/retard, or electrical faults in the actuator circuit
Failure Causes: Oil contamination or sludge can clog the actuator, impairing function. Electrical problems such as wiring degradation or poor connector contact can impede correct activation 

Diagnostic & repair advice check oil quality and change intervals - fresh, clean oil helps prevent buildup that hampers actuator performance scan for and interpret fault codes using an OBD-II scanner to pinpoint actuator failure or control circuit issues Inspect connectors and wiring for corrosion or looseness Replace defective solenoid(s) with OEM or high-quality equivalents if internal stick or mechanical failure is suspected. 



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

99610530307
99610530306
99610530303
99610530305
99610530307
99610530304
99610530302

The product you are viewing cross references to these numbers
Special Order item
99610515201
Product Information
Product Information
Camshaft timing chain.
Timing chain from the intermediate shaft to the heads. Two required. Price is for each.

Fits:
Porsche 996 Carrera 3.6L 2002-2004
Porsche 987 Boxster / Boxster S 2005-08
Porsche 987C Cayman / Cayman S 2005-08
Porsche 997 Carrera 3.6L / S 3.8L 2005-08 COUPE / CABRIO

Diagram ref no. 26

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

99610515201
99610515201
99610515200

The product you are viewing cross references to these numbers
99610515201/1
Product Information
Product Information
Camshaft timing chain.
Timing chain from the intermediate shaft to the heads.
Two required. Price is for each.

Fits:
Porsche 996 Carrera 3.6L 2002-2004
Porsche 987 Boxster / Boxster S 2005-08
Porsche 987C Cayman / Cayman S 2005-08
Porsche 997 Carrera 3.6L / S 3.8L 2005-08 COUPE / CABRIO

Diagram ref no. 26

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

99610515201
99610515201
99610515200

The product you are viewing cross references to these numbers
Special Order item
99970734440
Product Information
Product Information
Chain adjuster sealing o-ring. 18,77 x 1,78
3 per engine. Price is for each.

porsche

Fits:
Porsche 996
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997.1 Gen

Click 'Zoom in' for large parts diagram.
Diagram ref no 25

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

99970734440
99970734440

The product you are viewing cross references to these numbers
Special Order item
90012314730
Product Information
Product Information
Chain adjuster sealing ring. 27 x 32
3 per engine. Price is for each.

porsche

Fits:
Porsche 996
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997.1 Gen

Click 'Zoom in' for large parts diagram.
Diagram ref no 37

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

90012314730
90012314730

The product you are viewing cross references to these numbers
90012314730/1
Product Information
Product Information
Chain adjuster sealing ring. 27 x 32
3 per engine. Price is for each.

Fits:
Porsche 996
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997.1 Gen

Click 'Zoom in' for large parts diagram.
Diagram ref no 37

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

90012314730
90012314730

The product you are viewing cross references to these numbers
Special Order item
99610518802
Product Information
Product Information
Chain adjuster, with green seal.

porsche

Fits:
Porsche 987 Boxster MKI 2005-08
Porsche 987 Cayman MKI 2005-08
Porsche 997 Carrera MKI 2005-08
Porsche 996 Carrera

Click 'Zoom in' for large parts diagram.
Diagram ref no 34

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

99610518802
99610518801
99610518802
99610517651

The product you are viewing cross references to these numbers
Special Order item
99610518058
Product Information
Product Information
Chain adjuster, with green seal. 15/08/2000>>

Fits:

  • Porsche Boxster 986 2.7L 2001 - 2002
  • Porsche Boxster 986 S 3.2 2001- 2002

Cars With Engine Codes:
M96.21 / M96.22 / M96.23 / M96.24

  • Porsche Boxster 987 2.7L 2005 -08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Cars With Engine Codes:
M96.25 / M96.26 / M97.20 / M97.21 / M97.22

  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche Cayman S 3.4L 987C 2005-08
Cars With Engine Codes:
M97.21 / M97.20 / M97.22

  • Porsche Boxster 996 3.4L 2001
  • Porsche Boxster 996 3.6L 2001- 2005

Cars With Engine Codes:
M96.01 / M96.02 / M96.03 / M96.04

  • Porsche 997 Carrera 2 3.6L 2005>>
  • Porsche 997 Carrera 2S 3.8L 2005>>
  • Porsche 997 Carrera 4 3.6L 2005>>
  • Porsche 997 Carrera 4S 3.8L 2005>>

Cars With Engine Codes:

M97.01 / M96.05

Diagram ref no 35



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

99610518058
99610518055
99610518056
99610518058

The product you are viewing cross references to these numbers
99610518058/1
Product Information
Product Information
Chain adjuster, with green seal. 15/08/2000>>

The Chain Tensioner Adjuster is an essential part of your engine’s timing system. Its role is to keep the timing chain under precise tension, ensuring smooth synchronization between the crankshaft and camshafts for accurate valve timing and dependable engine performance.
Over time, chain tensioners can weaken, leading to slack, noise, and timing irregularities. Left unchecked, this can cause severe engine damage. Replacing the adjuster restores proper chain tension, reduces rattling, and helps protect your engine from costly failures.

Fits:

  • Porsche Boxster 986 2.7L 2001 - 2002
  • Porsche Boxster 986 S 3.2 2001- 2002

Cars With Engine Codes:
M96.21 / M96.22 / M96.23 / M96.24

  • Porsche Boxster 987 2.7L 2005 -08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Cars With Engine Codes:
M96.25 / M96.26 / M97.20 / M97.21 / M97.22

  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche Cayman S 3.4L 987C 2005-08
Cars With Engine Codes:
M97.21 / M97.20 / M97.22

  • Porsche Boxster 996 3.4L 2001
  • Porsche Boxster 996 3.6L 2001- 2005

Cars With Engine Codes:
M96.01 / M96.02 / M96.03 / M96.04

  • Porsche 997 Carrera 2 3.6L 2005>>
  • Porsche 997 Carrera 2S 3.8L 2005>>
  • Porsche 997 Carrera 4 3.6L 2005>>
  • Porsche 997 Carrera 4S 3.8L 2005>>
Cars With Engine Codes:
M97.01 / M96.05

What This Product Does:
The chain tensioner adjuster is a key component in Porsche engines with timing chains. Its job is to keep the chain at the correct tension, ensuring the crankshaft and camshafts remain perfectly synchronized.

Functions:
  • Maintains proper chain tension for precise valve timing.
  • Reduces slack, vibration, and chain rattle.
  • Prevents chain skipping or jumping teeth under load.
  • Protects the chain, guides, and sprockets from premature wear.

Symptoms Of A Faulty Chain Tensioner Adjuster:
  • Rattling or metallic noise from the timing chain area, especially at cold start.
  • Engine light from timing irregularities.
  • Engine misfires or rough idle due to incorrect valve timing.
  • Loss of performance or efficiency.
  • In severe cases timing chain failure, which can cause catastrophic engine damage.

Why Replacement Matters:
This part is critical to engine reliability. A worn or failing chain tensioner can lead to major timing issues, risking serious internal damage.
Replacing it ensures:
  • Correct tension and timing accuracy.
  • Reduced noise and vibration from the chain system.
  • Long-term protection of the timing chain, guides, and engine.
It’s strongly recommended to replace the tensioner during timing chain service, rebuilds, or if early warning symptoms are present.

Diagram Ref No 35



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

99610518058
99610518055
99610518056
99610518058

The product you are viewing cross references to these numbers
Special Order item
996105
Product Information
Product Information
Guide Rail - Cylinder 1-3 and  4-6

Fits:
Porsche 986 Boxster 2.7L /  3.2L  2003-04 Engine codes   M96.23 / M96.24
Porsche 987 Boxster 2.7L / 3.2L / 3.4L 2005-08  Engine codes M96.25 / M96.26 / M97.20 / M97.21 / M97.22
Porsche 987C 2.7L / 3.4L Cayman 2006-08  Engine codes  M97.20 / M97.21 / M97.22
Porsche 996 3.6L C2 / C4 / C4S 2002-2005 Engine codes M96.03

Porsche 997.1 3.6L /3.8L  2005-08  Engine codes M96.05 / M97.01

Diagram Ref No 33.



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

996105
99610516400
99610505401

The product you are viewing cross references to these numbers
99970734440/1
Product Information
Product Information
O-ring - 18.77 x 1.78 - for timing chain adjuster or tensioner. 

Fits:

Porsche 986 Boxster / S 1997-04 - x3 required
Porsche 987 Boxster / S 2005-08 - x3 required
Porsche 987 Cayman / S 2006-08 - x4 required

Porsche 996 Carrera 1998-05 - x3 required
Porsche 997-1 Carrera 2005-08 - x4 required

Diagram ref. 25.



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

99970734440
99970734440

The product you are viewing cross references to these numbers
Special Order item
99610519500
Product Information
Product Information
Tensioner Blade Pad.
1 per engine.

porsche

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 MKI Boxster 2005-08
Porsche 987C MKI Cayman 2005-08
Porsche 996 Carrera 1998-05
Porsche 997 MKI Carrera 2005-08

Click picture for large parts diagram.
Diagram Ref No 19.
Special Order item
99610516555
Product Information
Product Information
Tensioner Blade. 1 per engine.

porsche

Fits:
Porsche 986 Boxster / Boxster S 1997-04
Porsche 987 Boxster / Boxster S 2005-08
Porsche 987C Cayman / Cayman S 2006-08
Porsche 996 C2 / C4 / C4S 1998-05
Porsche 997 C2 / C4 / C2S / C4S 2005-08 COUPE/CABRIO

Click picture for large parts diagram.
Diagram Ref No 18.


This product supersedes Porsche's old part numbers:
- 996 105 165 54.
Special Order item
99610516651
Product Information
Product Information
Tensioner Blade.1 per engine.

porsche

Fits:
Porsche 986 Boxster / Boxster S 1997-04
Porsche 987 Boxster / Boxster S 2005-08
Porsche 987C Cayman / Cayman S 2006-08
Porsche 996 C2 / C4 / C4S 1998-05
Porsche 997 C2 / C4 / C2S / C4S 2005-08 COUPE/CABRIO

Click picture for large parts diagram.
Diagram Ref No 22.
DISPLAYING 1 to 16 (of 21 products)
1 2
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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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