Chains & Tensioners

Camshaft adjuster intake.



Fits:
Porsche 957 Cayenne 3.6L 2008-10
Porsche 958 Cayenne 3.6L 2011-18

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Diagram ref no 24

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95510505101

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Camshaft adjuster outlet.



Fits:
Porsche 957 Cayenne 3.6L 2008-10

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Diagram ref no 25

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95510505201

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Chain Tensioner.
The Genuine Porsche Chain Tensioner is an original equipment engine timing component designed to maintain the correct tension on the engine timing chain of compatible Porsche models. Manufactured to Porsche's exact specifications for fit, performance and durability, this precision-engineered chain tensioner ensures accurate valve timing by keeping the timing chain under constant, controlled tension, reducing chain vibration and preventing premature wear of the timing system.  

Fits:

• Porsche 955 Cayenne 3.2L V6 2004-06
• Porsche 957 Cayenne 3.6L 2007-10  

Diagram Ref No 2

Manufactured from high-strength steel with precision-machined internal hydraulic components and durable sealing elements, the chain tensioner is engineered to withstand continuous engine oil pressure, elevated operating temperatures and high engine speeds. Designed as a direct replacement for the original component, it integrates seamlessly with the timing chain assembly to deliver factory-correct timing performance and long-term reliability.  

What This Product Does:

• Maintains the correct tension on the engine timing chain.
• Prevents timing chain slack and excessive movement.
• Ensures accurate camshaft and crankshaft timing.
• Reduces timing chain vibration and noise.
• Helps prevent premature wear of the timing chain and guide rails.
• Supports smooth and efficient engine operation.
• Restores factory timing chain performance.
• Forms an essential part of the engine timing system.

Symptoms Of Wear Or Failure:

• Rattling noise from the timing chain area, particularly during cold starts.
• Engine management or check engine warning light.
• Timing-related fault codes.
• Rough idle or engine misfires.
• Reduced engine performance.
• Excessive timing chain noise.
• Poor engine starting.
• Engine timing becoming inaccurate.
• Accelerated wear of the timing chain or guide rails.
• Severe engine damage if the timing chain jumps teeth.

Why Replacement Matters:

• The chain tensioner operates continuously using engine oil pressure and an internal spring mechanism to maintain the correct tension on the timing chain. Over time, internal wear, weakened springs or seal deterioration can reduce its effectiveness, allowing excessive chain slack and movement.
• A faulty chain tensioner can lead to inaccurate valve timing, increased timing chain wear and excessive engine noise. In severe cases, insufficient chain tension can allow the timing chain to skip teeth, potentially resulting in valve-to-piston contact and catastrophic engine damage.
• Replacing a worn or faulty chain tensioner with a Genuine Porsche component restores precise timing chain control and protects the entire timing system from unnecessary wear. Manufactured to Porsche's exact engineering standards, the Genuine Porsche Chain Tensioner provides factory-correct fitment, exceptional durability and dependable long-term performance, ensuring the reliability, efficiency and engine protection expected from your Porsche.

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95510546700

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Chain Tensioner.
The OE MATCH Chain Tensioner is a engine timing component designed to maintain the correct tension on the engine timing chain of compatible Porsche models. This precision-engineered chain tensioner ensures accurate valve timing by keeping the timing chain under constant, controlled tension, reducing chain vibration and preventing premature wear of the timing system.  

Fits:

• Porsche 955 Cayenne 3.2L V6 2004-06
• Porsche 957 Cayenne 3.6L 2007-10  

Diagram Ref No 2

The chain tensioner is engineered to withstand continuous engine oil pressure, elevated operating temperatures and high engine speeds. Designed as a replacement, it integrates seamlessly with the timing chain assembly to deliver correct timing performance and long-term reliability.  

What This Product Does:

• Maintains the correct tension on the engine timing chain.
• Prevents timing chain slack and excessive movement.
• Ensures accurate camshaft and crankshaft timing.
• Reduces timing chain vibration and noise.
• Helps prevent premature wear of the timing chain and guide rails.
• Supports smooth and efficient engine operation.
• Forms an essential part of the engine timing system.

Symptoms Of Wear Or Failure:

• Rattling noise from the timing chain area, particularly during cold starts.
• Engine management or check engine warning light.
• Timing-related fault codes.
• Rough idle or engine misfires.
• Reduced engine performance.
• Excessive timing chain noise.
• Poor engine starting.
• Engine timing becoming inaccurate.
• Accelerated wear of the timing chain or guide rails.
• Severe engine damage if the timing chain jumps teeth.

Why Replacement Matters:

• The chain tensioner operates continuously using engine oil pressure and an internal spring mechanism to maintain the correct tension on the timing chain. Over time, internal wear, weakened springs or seal deterioration can reduce its effectiveness, allowing excessive chain slack and movement.
• A faulty chain tensioner can lead to inaccurate valve timing, increased timing chain wear and excessive engine noise. In severe cases, insufficient chain tension can allow the timing chain to skip teeth, potentially resulting in valve-to-piston contact and catastrophic engine damage.

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95510546700

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Engine Timing Chain Adjuster.



Fits:
Porsche 957 Cayenne S /GTS/TURBO 4.8L 17/10/08 >>
Porsche 958 Cayenne S / GTS / TURBO 4.8L 2011-16
Porsche 970 Panamera S / GTS / TURBO 4.8L 2010-16

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Diagram ref no 14

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94810518011

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Engine timing chain adjuster.



Fits:
Porsche 957 Cayenne S /GTS/TURBO 4.8L >>16/10/2008

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Diagram ref no 14

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94810518010

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Engine timing chain guide, Upper.



Fits:
Porsche 957 Cayenne 4.8L 2007-10
Porsche 958 Cayenne 3.6L / 4.8L 2011-18
Porsche 95B.1 Macan 3.0L / 3.6L 2014-18
Porsche 970 Panamera 3.0L / 3.6L / 4.8L 2010-16

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Diagram ref no 7

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94810502312

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Engine timing chain guide, Upper.



Fits:
Porsche 957 Cayenne 4.8L 2007-10
Porsche 958 Cayenne 3.6L / 4.8L 2011-18
Porsche 95B.1 Macan 3.0L / 3.6L 2014-18
Porsche 970 Panamera 3.0L / 3.6L / 4.8L 2010-16

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Diagram ref no 7

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94810502312

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Engine timing Chain Kit for camshaft included tensioner no. 94810518011 which fits car 17/10/2008>>

Fits:
Porsche 957 Cayenne 4.8L S / GTS / TURBO / TURBO S Engine codes: M48.01 / M48.51 17/10/2008>>

Porsche 958 Cayenne 4.8L S / GTS / TURBO / TURBO S Engine codes: M48.02 / M48.52 / MCF.TB

Porsche 970 Panamera 4.8L S / GTS / TURBO / TURBO S Engine codes: M48.20 / M48.40 / M48.70 / MCW.BA / MCW.CA

Contains
1x 94810725212
1x 94810516910
1x 94810223111
1x 94810518011
2x 94810518111
1x 94810502312
2x 94810516612
1x 94810506811
1x 94810506510

Diagram ref no 1

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94810516910

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Engine timing chain Kit for camshaft included tensioner no. 94810518011 which fits car 17/10/2008>>

A complete engine timing chain kit - including the timing chain, sprockets, tensioner, guides, and necessary hardware - used to drive and synchronise crankshaft and camshafts, and - where applicable - oil pump, balance shafts or auxiliary drives. The kit replaces all critical moving parts in the timing system at once.

Fits:
Porsche 957 Cayenne 4.8L S / GTS / TURBO / TURBO S
Engine codes: M48.01 / M48.51 17/10/2008>>

Porsche 958 Cayenne 4.8L S / GTS / TURBO / TURBO S
Engine codes: M48.02 / M48.52 / MCF.TB

Porsche 970 Panamera 4.8L S / GTS / TURBO / TURBO S
Engine codes: M48.20 / M48.40 / M48.70 / MCW.BA / MCW.CA

This kit contains: 
1x 94810725212
1x 94810516910
1x 94810223111
1x 94810518011
2x 94810518111
1x 94810502312
2x 94810516612
1x 94810506811
1x 94810506510

Diagram ref no 1, 3, 4, 5, 7, 9, 12, 13, 14,

Why replacement matters
Timing-chain systems wear over time: chains stretch or wear, guides and tensioners degrade, and components lose tension. This can result in:
• Chain slack, skipping or jumping - leading to timing misalignment, valve timing errors or even engine damage.
•  Increased engine noise, rough idling or poor performance.
•  Accelerated wear on camshafts, valves or pistons in severe cases.

A full replacement with this kit renews all critical timing components at once, restoring factory timing precision and long-term reliability - often more cost-effective than piecemeal repairs.

When to Replace
Consider replacing the entire timing chain kit if:
•  You hear rattling, slapping or chain noise from the front of the engine, especially at cold start or idle.
•  You detect timing-related performance issues - misfires, rough idle, loss of power, erratic valve timing. 
•  Oil contains metal shavings or debris indicating wear of guides or chain components.
•  You are performing a major engine service or rebuild, or you are at high mileage / high load conditions.
•  The vehicle’s service history is unknown or incomplete.

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94810516910

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Engine timing Chain Kit for camshaft. included tensioner no. 94810518010 which fits car >>16/10/2008

Fits:
Porsche 957 Cayenne 4.8L S / GTS / TURBO / TURBO S Engine codes: M48.01 / M48.51 >>16/10/2008

Contains
1 x 94810725212 Drive chain (Crankshaft)
1 x 94810516910 Drive chain (Camshafts)
1 x 94810223111 Crankshaft sprocket
1 x 94810518010 Chain tensioner
2 x 94810518111 Camshaft sprockets
1 x 94810502312 Guide rail
2 x 94810516612 Slide rails
1 x 94810506811 Guide rail (Camshaft / Crankshaft)
1 x 94810506510 Tensioner blade


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Diagram ref no 1

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94810516910

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Guide rail timing chain.



Fits:
Porsche 957 Cayenne 4.8L 2007-10
Porsche 958 Cayenne 4.8L 2011-18
Porsche 970 Panamera 4.8L 2010-16

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

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94810506812

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Guide rail timing chain.

#

Fits:
Porsche 957 Cayenne V8 4.8L 2007-10
Porsche 958 Cayenne V8 4.8L 2011-18
Porsche 958 Cayenne V6 3.6L 2011-18
Porsche 970 Panamera V8 4.8L 2010-16
Porsche 970 Panamera V6 3.6L 2010-16
Porsche 95B Mk1 Macan V6 3.0L
Porsche 95B Mk1 Macan V6 3.6L

Diagram ref no 13

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94810506511

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Guide Rail. 
The Genuine Porsche Guide Rail is an original equipment engine timing component designed to guide and support the timing chain on compatible Porsche engines. Manufactured to Porsche's exact specifications for fit, strength and durability, this precision-engineered guide rail maintains the correct timing chain path while working in conjunction with the chain tensioner to minimise chain movement, reduce vibration and ensure accurate valve timing.  

Fits:

• Porsche 957 Cayenne 3.6L 2007-10
• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17  

Diagram Ref No 13

Manufactured from high-strength engineering-grade composite material bonded to a robust metal backing where applicable, the guide rail is designed to withstand continuous contact with the timing chain, elevated engine temperatures, engine oil exposure and repeated thermal cycling. Precision-engineered for direct OE replacement, it provides factory-correct fitment and dependable long-term performance during engine repairs, timing chain replacement or complete engine rebuilds.  

What This Product Does:

• Guides the timing chain along its correct operating path.
• Maintains correct timing chain alignment.
• Works with the chain tensioner to control chain movement.
• Reduces timing chain vibration and operating noise.
• Minimises wear on the timing chain and sprockets.
• Supports accurate camshaft and crankshaft timing.
• Restores factory timing system operation.
• Forms an essential part of the engine timing assembly.

Symptoms Of Wear Or Failure:

• Rattling noise from the timing chain area, especially during cold starts.
• Increased timing chain noise while driving.
• Engine management or check engine warning light.
• Timing-related fault codes.
• Rough idle or reduced engine performance.
• Visible wear grooves or cracks on the guide rail.
• Broken or missing guide rail material.
• Accelerated timing chain wear.
• Timing chain slack caused by worn guides.
• Severe engine damage if guide failure allows the timing chain to jump timing.

Why Replacement Matters:

• The timing chain guide rail is subjected to constant contact with the timing chain while operating under high engine speeds, continuous oil lubrication and elevated temperatures. Over time, the guide surface naturally wears, while the composite material can become brittle, crack or break due to age and repeated thermal cycling.
• A worn or damaged guide rail can allow excessive timing chain movement, increasing chain noise and accelerating wear of the chain, sprockets and tensioner. In severe cases, guide rail failure can cause the timing chain to lose correct tension or jump timing, potentially resulting in extensive internal engine damage.
• Replacing a worn or damaged guide rail with a Genuine Porsche component restores proper timing chain guidance and protects the complete timing system. Manufactured to Porsche's exact engineering standards, the Genuine Porsche Guide Rail provides factory-correct fitment, exceptional durability and dependable long-term reliability, helping maintain precise valve timing, smooth engine operation and the performance expected from your Porsche.

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95510506600

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Guide Rail. 
The OE MATCH Guide Rail is a engine timing component designed to guide and support the timing chain on compatible Porsche engines. This precision-engineered guide rail maintains the correct timing chain path while working in conjunction with the chain tensioner to minimise chain movement, reduce vibration and ensure accurate valve timing.  

Fits:

• Porsche 957 Cayenne 3.6L 2007-10
• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17  

Diagram Ref No 13

The guide rail is designed to withstand continuous contact with the timing chain, elevated engine temperatures, engine oil exposure and repeated thermal cycling. Precision-engineered for OE MATCH replacement, it provides correct fitment and dependable long-term performance during engine repairs, timing chain replacement or complete engine rebuilds.  

What This Product Does:

• Guides the timing chain along its correct operating path.
• Maintains correct timing chain alignment.
• Works with the chain tensioner to control chain movement.
• Reduces timing chain vibration and operating noise.
• Minimises wear on the timing chain and sprockets.
• Supports accurate camshaft and crankshaft timing.
• Forms an essential part of the engine timing assembly.

Symptoms Of Wear Or Failure:

• Rattling noise from the timing chain area, especially during cold starts.
• Increased timing chain noise while driving.
• Engine management or check engine warning light.
• Timing-related fault codes.
• Rough idle or reduced engine performance.
• Visible wear grooves or cracks on the guide rail.
• Broken or missing guide rail material.
• Accelerated timing chain wear.
• Timing chain slack caused by worn guides.
• Severe engine damage if guide failure allows the timing chain to jump timing.

Why Replacement Matters:

• The timing chain guide rail is subjected to constant contact with the timing chain while operating under high engine speeds, continuous oil lubrication and elevated temperatures. Over time, the guide surface naturally wears, while the composite material can become brittle, crack or break due to age and repeated thermal cycling.
• A worn or damaged guide rail can allow excessive timing chain movement, increasing chain noise and accelerating wear of the chain, sprockets and tensioner. In severe cases, guide rail failure can cause the timing chain to lose correct tension or jump timing, potentially resulting in extensive internal engine damage.

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95510506600

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Porsche Camshaft Adjuster Bolt - M12 x 1,5 x 110

Precision Camshaft Timing Securing Bolt for Porsche Engines

The camshaft adjuster bolt (part number is a critical fastening component used in the variable camshaft timing system, this bolt secures the camshaft adjuster unit to the camshaft assembly.

Fits:

• Porsche 957 Cayenne S / GTS 4.8L 2007-10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10

957 Cayenne - From engine numbers
M905541
MG904965
M901689
MT901788
MS900562

• Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
• Porsche 970.1 Panamera S V8 4.8L 2009-13
• Porsche 970.1 Panamera 4S V8 4.8L 2009-13
• Porsche 970.1 Panamera GTS V8 4.8L 2011-13
• Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
• Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
• Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
• Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
• Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 Executive 2014-16
• Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16

Diagram ref no 10

It plays a vital role in maintaining correct valve timing and engine performance.

What the Camshaft Adjuster Bolt Does

The Porsche engines use a variable valve timing system, often referred to as VarioCam, to optimise engine efficiency, torque and power output across the rev range.

The camshaft adjuster:

• Alters camshaft timing based on engine load and RPM
• Improves low-end torque and high-end power
• Enhances fuel efficiency
• Reduces emissions
• Maintains smooth engine operation

The camshaft adjuster bolt secures the timing adjuster mechanism firmly in place. Correct torque and clamping force are essential to ensure precise camshaft alignment and stable timing control.

Why Camshaft Adjuster Bolts Fail

Camshaft adjuster bolts are subject to:

• High rotational forces
• Continuous vibration
• Heat cycling from engine operation
• Torque stress during installation

In many cases, these bolts are torque-to-yield fasteners, meaning they are designed for single-use installation. Reusing an old bolt can result in reduced clamping force or improper seating.

Failure or incorrect installation can lead to:

• Timing deviation fault codes
• Rattling noises from the camshaft area
• Poor engine performance
• Check engine light illumination
• Severe engine damage if timing shifts significantly

Why You May Need a Replacement Camshaft Adjuster Bolt

Whenever the camshaft adjuster, timing components or camshafts are removed, the securing bolt should be replaced to maintain correct torque specifications.

This camshaft adjuster bolt is essential during:

• VarioCam repairs
• Timing chain service
• Camshaft replacement
• Engine rebuilds
• Cylinder head work
• Fault code diagnosis relating to camshaft timing

Replacing the bolt ensures proper clamping force and protects the integrity of the Porsche timing system.

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94810525400

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