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Porsche > 997 (911) MK2 2009-2012 > 997 MKII GT2 RS 2011-13 > Engine Rebuild Parts >

Chains & Tensioners

Chains & Tensioners

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DISPLAYING 17 to 25 (of 25 products)
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Timing chain tensioner. Left. Porsche 997 Turbo / GT3 - 95910505103, 99710506171, 99710506170
2
Timing chain tensioner. Left. Porsche 997 Turbo / GT3
Special Order item
99710506171
Product Information
Product Information
Timing chain tensioner. LEFT.

porsche

Fits:
Porsche 997.1 Turbo / GT2 2007-09
Porsche 997.2 Turbo / GT2 2010-13
Porsche 997 GT3 2007-11

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

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99710506171
95910505103
99710506171
99710506170

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Timing chain tensioner. Left. Porsche 997 Turbo / GT3 - 95910505103, 99710506171, 99710506170
2
Timing chain tensioner. Left. Porsche 997 Turbo / GT3
99710506171/1
Product Information
Product Information
Timing chain tensioner. LEFT.

Fits:
Porsche 997.1 Turbo / GT2 2007-09
Porsche 997.2 Turbo / GT2 2010-13
Porsche 997 GT3 2007-11

Diagram ref no 7

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Related, superseded, cross reference or alternative numbers for comparison.

99710506171
95910505103
99710506171
99710506170

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Timing chain tensioner. Right. Porsche 997 Turbo / GT3 - 99710506271, 99710506270, 95910505203
2
Timing chain tensioner. Right. Porsche 997 Turbo / GT3
Special Order item
99710506271
Product Information
Product Information
Timing chain tensioner. RIGHT.

porsche

Fits:
Porsche 997.1 Turbo / GT2 2007-09
Porsche 997.2 Turbo / GT2 2010-13
Porsche 997 GT3 2007-11

Click 'Zoom in' for large parts diagram.
Diagram ref no 10

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Related, superseded, cross reference or alternative numbers for comparison.

99710506271
99710506271
99710506270
95910505203

The product you are viewing cross references to these numbers
Timing chain tensioner. Right. Porsche 997 Turbo / GT3 - 99710506271, 99710506270, 95910505203
2
Timing chain tensioner. Right. Porsche 997 Turbo / GT3
99710506271/1
Product Information
Product Information
Timing chain tensioner. Cyl. 4-6. RIGHT.

Fits:
Porsche 997.1 Turbo / GT2 2007-09
Porsche 997.2 Turbo / GT2 2010-13
Porsche 997 GT3 2007-11

Diagram ref no 10

Related reference numbers
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99710506271
99710506271
99710506270
95910505203

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Timing Chain. Porsche 987.2 / 981 / 982 Boxster / Cayman / 997.2 / 991.1 / 991.2 2009>> - 9A110523302
3
Timing Chain. Porsche 987.2 / 981 / 982 Boxster / Cayman / 997.2 / 991.1 / 991.2 2009>>
Special Order item
9A110523302
Product Information
Product Information
Timing Chain.
Restore your Porsche’s timing drive system with this genuine OEM chain. Designed for Porsche 987.2 / 981 / 982 Boxster / Cayman / 997.2 / 991.1 / 991.2 2009>> fitments, this timing chain drives the crank to oil pump/cam chain path. If your engine is showing timing cover noise, fault codes or high mileage, a new timing chain is key to maintaining performance and reliability.

Fits:
  • Porsche Boxster 987 MKII 2.9L 2009-2012
  • Porsche Boxster S 987 MKII 3.4L 2009-2012
  • Porsche Boxster 981 2.7L 2012-16
  • Porsche Boxster 981 S / GTS 3.4L 2012-16
  • Porsche Boxster 981 Spyder 3.8L 2016
  • Porsche Boxster 718 2.0L Manual (300 Bhp)
  • Porsche Boxster 718 2.0L PDK (300 Bhp)
  • Porsche Boxster S 718 2.5L Manual (350 Bhp)
  • Porsche Boxster S 718 2.5L PDK (350 Bhp)
  • Porsche Boxster T 718 2.0L Manual (300 Bhp)
  • Porsche Boxster T 718 2.0L PDK (300 Bhp)
  • Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
  • Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 997 MKII GT2 RS 2011-13
  • Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
  • Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
  • Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
  • Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
  • Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
  • Porsche 991.1 R 4.0L (500 Bhp) 2016
  • Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
  • Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
  • Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Speedster 4.0L (510Bhp) 2019
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12
  • Porsche Cayman 2.7L 981 2013-16
  • Porsche Cayman S / GTS 3.4L 981 2013-16
  • Porsche Cayman GT4 3.8L 2015-16
  • Porsche Cayman 718 2.0L Manual (300Bhp)
  • Porsche Cayman 718 2.0L PDK (300Bhp)
  • Porsche Cayman S 718 2.5L Manual (350Bhp)
  • Porsche Cayman S 718 2.5L PDK (350Bhp)
  • Porsche Cayman T 718 2.0L Manual (300Bhp)
  • Porsche Cayman T 718 2.0L PDK (300 Bhp)
  • Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
  • Porsche Cayman GTS 718 2.5L PDK (365 Bhp)  


Diagram Ref No 10

What This Product Does:

  • The timing chain synchronises the crankshaft with other components — here especially linking to the oil pump / cam drive path — so that the engine’s valves operate at the correct times relative to piston movement.
  • Over time, chains can stretch, guides may wear, tensioners may degrade — all of which will allow slack in the drive, noise, timing drift or even failure.
  • Essentially, this chain is a critical link in the engine’s timing system — it must stay within spec to ensure the engine runs as designed.

When You Should Consider Replacement:
  • Rattling or clattering noise from the engine’s timing‐cover area, especially on cold start, idle or at low revs. Slack chain often causes this.
  • Timing-related fault codes — cam/ crank correlation errors, or variable valve timing issues that could stem from chain/tensioning irregularity.
  • Loss of engine performance, rough running, mis-fires, or inconsistent response — because timing drift can affect the engine’s breathing and ignition.
  • High mileage or long service interval without chain replacement — wear accumulates even if symptoms are subtle.
  • Visual inspection (where possible) may show wear or elongation in chain links, damaged guides or tensioner issues.

Why Replacement Matters:
  • Engine protection: A failed or excessively worn timing chain can cause piston-valve contact, or major internal engine damage. Replacing the chain significantly reduces that risk.
  • Maintains timing accuracy: A new chain ensures correct timing events — vital for power delivery, engine smoothness, efficiency and longevity.
  • Noise & NVH improvement: Slack or worn chain components often produce unwanted noise and degrade refinement — renewed parts improve comfort.
  • Cost-efficiency: Since accessing the chain involves significant labour (front engine cover, oil pump, possibly other removal), replacing the chain while you’re already in saves repeated work.



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

9A110523302
9A110523302

The product you are viewing cross references to these numbers
Timing Chain. Porsche 997 Turbo/GT2 MKI / MKII 3.6L M97.70 2007-11 - 99710555171
3
Timing Chain. Porsche 997 Turbo/GT2 MKI / MKII 3.6L M97.70 2007-11
Special Order item
99710555171
Product Information
Product Information
Timing Chain.
Genuine Porsche duplex timing chain for 911 997 Turbo/GT2 MKI / MKII 3.6L M97.70 2006-2011 – replaces stretched or worn chain to restore precise engine timing.
Sold Each.
x2 Required Per Car.

Fits:
  • Porsche 997 MK1 TURBO 2007-09
  • Porsche 997 MK1 GT2 2007-09
  • Porsche 997 MKII Turbo 2010-11
  • Porsche 997 MKII GT2 RS 2011-11

Diagram Ref No 29

What This Product Does:

  • The timing chain transfers rotational motion from the crankshaft or intermediate shaft to the camshaft(s) (and/or to the secondary shaft) allowing valves to open and close in synchrony with piston movement.
  • A “duplex” chain (two rows of links) provides greater strength and durability under the high loads and high engine speeds typical of a Porsche 911 performance engine.
  • Because the chain drives critical timing, any slack, wear or movement will affect valve timing, ignition timing, engine management, and can result in noise, performance loss or engine damage.
  • In this context, this chain is often replaced as part of a full timing drive overhaul (including guides, rails, tensioners) rather than alone.

Symptoms & When You Should Replace:
  • Rattling or clattering noise from the front of the engine (timing cover area), often heard at idle or on start-up — typical of chain slack.
  • Check engine light related to camshaft or timing chain position sensors, or codes showing timing deviation.
  • Loss of engine power, mis-firing, rough running — could indicate timing drift due to chain wear.
  • High mileage or older engine with original chain: preventive replacement recommended to avoid catastrophic failure.
  • During major engine service (removing timing cover, replacing chains/guides) — because labour is high, replacing the chain proactively makes sense.
  • If inspection reveals visible wear: elongated chain links, damaged chain guides or missing/broken tensioner components.

Why Replacement Matters:
  • Protects the entire engine: A failed timing chain can lead to valve-to-piston contact, major damage and extremely costly repairs — replacing the chain is preventive.
  • Restores proper timing & performance: A new chain ensures correct valve and ignition timing, helping engine run smoothly, powerfully and reliably.
  • Eliminates noise & wear risk: Worn chains and guides cause noise and degrade timing drive integrity — a new chain reduces risk and improves sound.
  • Cost-efficient when engine is opened: Since accessing the chain involves removing major parts (timing cover, possibly front of engine), replacing the chain while it’s open saves re-labour.



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

99710555171
99710555171

The product you are viewing cross references to these numbers
Timing Chain. Porsche Boxster / Cayman / 997 / 991 - 9A110514203, 9A110514202
2
Timing Chain. Porsche Boxster / Cayman / 997 / 991
Special Order item
9A110514203
Product Information
Product Information
Timing Chain. Crankshaft To Cam. EACH.

porsche

Fits:
Porsche 987.2 Boxster
Porsche 981 Boxster
Porsche 987C.2 Cayman
Porsche 981C Cayman
Porsche 997.2
Porsche 991.1

Price is for each.

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

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

9A110514203
9A110514203
9A110514202

The product you are viewing cross references to these numbers
Timing Chain. Porsche Boxster / Cayman / 997 / 991 - 9A110514203, 9A110514202 - 34971
2
Timing Chain. Porsche Boxster / Cayman / 997 / 991
9A110514203/1
Product Information
Product Information
Timing Chain. Porsche Boxster / Cayman / 997 / 991 (EACH)

oematch

Fits:
Porsche 987.2 Boxster
Porsche 981 Boxster
Porsche 987C.2 Cayman
Porsche 981C Cayman
Porsche 997.2
Porsche 991.1

Price is for each.

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

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

9A110514203
9A110514203
9A110514202

The product you are viewing cross references to these numbers
Torx screw M5x12 throttle control element. Porsche 987.2 / 981 / 718 / 997.2 / 991 - 99907365001
4
Torx screw M5x12 throttle control element. Porsche 987.2 / 981 / 718 / 997.2 / 991
Special Order item
99907365001
Product Information
Product Information
Torx screw M5x12 throttle control element. 

porsche

Fits:
Porsche 987.2 Boxster / Cayman - 2009 to 2012
Porsche 981 Boxster / Cayman - 2012 to 2016
Porsche 718 Boxster / Cayman  - 2017 Onwards
Porsche 997.2 - 2009 to 2012
Porsche 991 - 2012 to 2018


Related reference numbers
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99907365001
99907365001

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DISPLAYING 17 to 25 (of 25 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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