Chains & Tensioners

Camshaft control element NVS. 



Fits
Porsche 987.2 Boxster / Boxster S - 2009 to 2012
Porsche 987.2 Cayman / Cayman S - 2009 to 2012
Porsche 981 Boxster / Boxster S / Spyder
Porsche 981 Cayman / Cayman S / GT4
Porsche 997 Carrera / Carrera S - 2009 to 2012
Porsche 997 Carrera 4 / Carrera 4S - 2009 to 2012
Porsche 997.2 turbo 2009 to 2012 
Porsche 997.2 GT3 2011 to 2012 
Porsche 991.1 3.4ltr / 3.8ltr - 2012 to 2016
Porsche 991 turbo 3.8ltr  - 2014 to 2020

Diagram ref no 3

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Related, superseded, cross reference or alternative numbers for comparison.

9A110530405

The product you are viewing cross references to these numbers

Camshaft control element NVS. Porsche 987 / 981 / 997 / 991



Fits
Porsche 987.2 Boxster / Boxster S - 2009 to 2012
Porsche 987.2 Cayman / Cayman S - 2009 to 2012
Porsche 981 Boxster / Boxster S / Spyder
Porsche 981 Cayman / Cayman S / GT4
Porsche 997 Carrera / Carrera S - 2009 to 2012
Porsche 997 Carrera 4 / Carrera 4S - 2009 to 2012
Porsche 997.2 turbo 2009 to 2012 
Porsche 997.2 GT3 2011 to 2012 
Porsche 991.1 3.4ltr / 3.8ltr - 2012 to 2016
Porsche 991 turbo 3.8ltr  - 2014 to 2020

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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Related, superseded, cross reference or alternative numbers for comparison.

9A110530405

The product you are viewing cross references to these numbers

Camshaft Control Element NVS.
The OE Match Camshaft Control Element (NVS) is a premium-quality replacement variable valve timing (VarioCam) control component designed to regulate camshaft timing on compatible Porsche engines. Manufactured to OE specifications for fit, performance and durability, this control element precisely manages engine oil flow to the camshaft adjuster, allowing the engine management system to optimise valve timing for improved performance, fuel efficiency and emissions.  

Fits:

• Porsche Boxster 987 MKII 2.9L 2009-12
• Porsche Boxster S 987 MKII 3.4L 2009-12
• 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 GT3 / GT3 RS 2010-11
• Porsche 997 MKII Turbo 2010-13
• Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
• Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
• Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
• Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
• Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
• Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
• 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 Cayman 2.9L 987C MKII 2009-12
• Porsche Cayman S / R 3.4L 987C MKII 2009-12  

Diagram Ref No 13

Manufactured from high-grade steel and precision-machined internal components, the control element is engineered to operate reliably under high oil pressure and extreme engine temperatures. Designed for direct OE-style fitment, it integrates seamlessly with the engine's variable valve timing system, ensuring accurate camshaft adjustment throughout the engine's operating range.  

What This Product Does:

• Controls oil flow to the variable camshaft timing system.
• Regulates camshaft adjustment for optimum valve timing.
• Helps improve engine performance and torque.
• Supports better fuel efficiency and reduced emissions.
• Provides fast and accurate camshaft timing response.
• Works in conjunction with the engine management system.
• Maintains smooth engine operation across all engine speeds.
• Forms an essential part of the VarioCam (NVS) system.

Symptoms Of Wear Or Failure:

• Check Engine Light illumination.
• Camshaft timing fault codes.
• Rough or unstable engine idle.
• Reduced engine power or poor acceleration.
• Increased fuel consumption.
• Engine hesitation during acceleration.
• Difficulty starting the engine.
• Rattling noises associated with variable valve timing operation.
• Engine entering reduced performance or limp mode.
• Increased exhaust emissions.

Why Replacement Matters:

• The camshaft control element operates continuously within the engine's lubrication system and is exposed to high oil pressure, elevated temperatures and constant actuation. Over time, internal wear, contamination from engine oil deposits or mechanical failure can reduce its ability to regulate oil flow accurately.
• A faulty control element can prevent the variable valve timing system from operating correctly, leading to incorrect camshaft timing, reduced engine performance, poor fuel economy and increased emissions. Continued operation with a malfunctioning component may place additional strain on the camshaft adjusters and other timing system components.
• Replacing a worn or defective camshaft control element restores accurate variable valve timing operation, allowing the engine management system to optimise performance, efficiency and drivability. The OE Match replacement provides factory-style fitment, precision engineering and long-lasting reliability, helping maintain the smooth operation, responsiveness and performance expected from your Porsche.

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

9A110530405

The product you are viewing cross references to these numbers

Engine Timing Chain Tensioner Blade.

Fits:
Porsche 982 Boxster Spyder RS (718) 4.0L 2019>>
Porsche 982 Cayman GT4 RS (718) 4.0L 2019>>
Porsche 991 GT3 RS / R / Speedster 4.0L MKI / MKII 2014>>2020
Porsche 992.1 GT3 / RS / ST 4.0L MKI 2021>>

Diagram Ref No 3

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

0PB109508A

The product you are viewing cross references to these numbers

Tensioner Blade.
Ensure your Porsche’s timing chain drives remain secure and precisely guided with this genuine OEM tensioner blade. Used in the timing drive system of models like the 911 991.2 / 992.1 / 992.2 or 718 Boxster/Cayman, this blade plays a crucial role in guiding the timing chain and maintaining correct tracking and tension. Ideal when replacing timing chains, guides or tensioner assemblies.
Sold Each.
x2 Required Per Car.

Fits:

• 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 Boxster GTS 718 4.0L Manual (400 Bhp)
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
• Porsche Boxster Spyder 718 4.0L (420 Bhp)
• Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
• 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)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
• Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
• 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 992.1 Carrera 2 3.0L 2019-24
• Porsche 992.1 Carrera 4 3.0L 2019-24
• Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
• Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
• Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
• Porsche 992.1 Targa 4 3.0L 2020-24
• Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
• Porsche 992.1 Turbo 3.8L 2020-24
• Porsche 992.1 Turbo S 3.8L 2020-24
• Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
• Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
• Porsche 992.2 Carrera 2 3.0L 2024>>
• Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>

Diagram Ref No 8

What This Product Does:

• The “tensioner blade” refers to a guide or support element in the timing chain system that helps apply correct pressure or alignment on the chain, often in combination with a chain tensioner or guide rail.
  
• When the timing chain runs between the crankshaft and camshafts (or intermediate shafts) it needs not only the chain and tensioner, but also supporting blades/rails/arms to manage movement, reduce slack and keep the chain tracking correctly.
• The tensioner blade part is one of the curated OEM components that helps ensure accurate timing drive by maintaining chain-contact, reducing vibration, guiding the chain — thereby supporting long-term durability and correct engine timing.

When You Should Consider Replacement:

• The timing chain system is being serviced (e.g., chain/guide/tensioner replacement) — as the blade is likely exposed or used in that service path.
• There are timing-related issues: rattling or clattering from the timing cover area, especially on cold start or idle — which can indicate slack or improper chain tracking.
  
• Diagnostic trouble codes (DTCs) related to camshaft/chain timing errors — because a damaged or worn blade may allow chain deflection or mistracking.
• Visual inspection (if accessible) reveals the blade or guide is worn, cracked, missing, or otherwise compromised.
• High mileage or extended service intervals — the supporting components around the chain wear, and a worn blade can expedite chain wear or guide rail wear.

Why Replacement Matters:

• Maintains engine timing integrity: If the blade that guides or supports the chain is compromised, the chain may skip, jump or wear prematurely — leading to timing errors and potential engine damage.
  
• Reduces noise & prolongs component life: Components like the tensioner blade help damp chain vibration and keep tensioners/rails from excessive wear. Replacing it helps preserve the chain drive system.
  
• Cost-effective preventive repair: When you already have access to the timing system (front cover off, chain out) replacing components such as the blade prevents future labour for incremental failures.

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

0PB109509B

The product you are viewing cross references to these numbers

Timing Chain For Camshaft / Crankshaft.
The PORSCHE Timing Chain For Camshaft / Crankshaft 0PB109252C is a genuine Porsche internal engine timing component designed to maintain the precise mechanical relationship between the crankshaft and camshaft timing system.
Sold Each.
x2 Required Per Engine.

Fits:

• Porsche 991.1 R 4.0L (500 Bhp) 2016
• Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
• Porsche 991.2 Speedster 4.0L (510Bhp) 2019
• Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19  

Diagram Ref No 1

The timing chain transfers rotational drive from the crankshaft through the timing mechanism so that camshaft operation remains correctly synchronised with piston movement. This precise relationship allows the intake and exhaust valves to operate at the correct points during the engine's combustion cycle.

Timing chains are designed for extended service life, but continuous mechanical loading, friction, heat and lubrication conditions can gradually cause wear. Chain elongation, worn guides, defective tensioners or damaged sprockets can create excessive slack and affect timing accuracy.

If deterioration becomes severe enough for the chain to jump, derail or fail, incorrect valve timing and potentially serious internal engine damage can result.

What This Product Does:
The camshaft/crankshaft timing chain provides the mechanical connection required to keep crankshaft rotation and camshaft operation correctly synchronised.

As the crankshaft rotates, the timing drive transfers this movement to the camshaft timing system.

This helps maintain:

• Correct crankshaft-to-camshaft synchronisation
• Accurate valve timing
• Correct intake valve operation
• Correct exhaust valve operation
• Reliable mechanical timing
• Smooth combustion
• Stable engine operation
• Consistent power delivery

Correct timing-chain tension and accurate engagement with the associated sprockets are essential for maintaining this relationship.

Symptoms Of Wear Or Failure:
Possible symptoms of timing-chain or associated timing-system deterioration include:

• Metallic rattling or clattering from the timing area
• Timing-chain rattle during cold starts
• Noise immediately after engine start-up
• Excessive chain slack
• Timing-chain elongation
• Mechanical noise that changes with engine RPM
• Rough or irregular engine operation
• Unstable idle
• Difficult or extended starting
• Reduced engine performance
• Poor throttle response
• Misfires
• Engine warning light
• Timing-related diagnostic fault codes
• Camshaft-position faults
• Crankshaft-position faults
• Crankshaft/camshaft correlation faults
• Variable camshaft timing faults where applicable
• Visible chain wear during inspection
• Worn or broken timing-chain guides
• Excessive tensioner travel
• Abnormal sprocket wear
• Metal or plastic debris in the engine oil or filter

These symptoms can also be caused by guides, tensioners, sprockets, variable timing components, sensors or lubrication problems. Proper diagnosis is therefore important before individual components are replaced.

Why Replacement Matters:
The Timing Chain is a critical component within the engine timing system.

Replacing a confirmed worn, elongated or damaged chain can help:

• Restore accurate crankshaft/camshaft synchronisation
• Maintain correct valve timing
• Restore dependable mechanical timing
• Reduce excessive chain slack
• Reduce abnormal timing-chain noise
• Maintain reliable sprocket engagement
• Protect timing-chain guides
• Protect associated sprockets
• Reduce the risk of timing deviation
• Reduce the risk of the chain jumping
• Reduce the risk of chain derailment
• Support smooth engine operation
• Protect expensive internal engine components

Continuing to operate an engine with a confirmed timing-chain problem can allow wear to progress and substantially increase the cost of the eventual repair.

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

0PB109252C

The product you are viewing cross references to these numbers

Timing Chain For Camshaft / Crankshaft.
The IWIS Timing Chain For Camshaft / Crankshaft is a replacement internal engine timing component for compatible Porsche applications. It forms part of the mechanical timing drive responsible for maintaining the precise relationship between crankshaft rotation and camshaft operation.  
Sold Each.
x2 Required Per Engine.

Fits:

• Porsche 991.1 R 4.0L (500 Bhp) 2016
• Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
• Porsche 991.2 Speedster 4.0L (510Bhp) 2019
• Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19  

Diagram Ref No 1

The timing chain transfers rotational drive from the crankshaft through the timing mechanism so that camshaft operation remains correctly synchronised with piston movement. This precise relationship allows the intake and exhaust valves to operate at the correct points during the engine's combustion cycle.

Timing chains are designed for extended service life, but continuous mechanical loading, friction, heat and lubrication conditions can gradually cause wear. Chain elongation, worn guides, defective tensioners or damaged sprockets can create excessive slack and affect timing accuracy.

If deterioration becomes severe enough for the chain to jump, derail or fail, incorrect valve timing and potentially serious internal engine damage can result.

What This Product Does:
The camshaft/crankshaft timing chain provides the mechanical connection required to keep crankshaft rotation and camshaft operation correctly synchronised.

As the crankshaft rotates, the timing drive transfers this movement to the camshaft timing system.

This helps maintain:

• Correct crankshaft-to-camshaft synchronisation
• Accurate valve timing
• Correct intake valve operation
• Correct exhaust valve operation
• Reliable mechanical timing
• Smooth combustion
• Stable engine operation
• Consistent power delivery

Correct timing-chain tension and accurate engagement with the associated sprockets are essential for maintaining this relationship.

Symptoms Of Wear Or Failure:
Possible symptoms of timing-chain or associated timing-system deterioration include:

• Metallic rattling or clattering from the timing area
• Timing-chain rattle during cold starts
• Noise immediately after engine start-up
• Excessive chain slack
• Timing-chain elongation
• Mechanical noise that changes with engine RPM
• Rough or irregular engine operation
• Unstable idle
• Difficult or extended starting
• Reduced engine performance
• Poor throttle response
• Misfires
• Engine warning light
• Timing-related diagnostic fault codes
• Camshaft-position faults
• Crankshaft-position faults
• Crankshaft/camshaft correlation faults
• Variable camshaft timing faults where applicable
• Visible chain wear during inspection
• Worn or broken timing-chain guides
• Excessive tensioner travel
• Abnormal sprocket wear
• Metal or plastic debris in the engine oil or filter

These symptoms can also be caused by guides, tensioners, sprockets, variable timing components, sensors or lubrication problems. Proper diagnosis is therefore important before individual components are replaced.

Why Replacement Matters:
The Timing Chain is a critical component within the engine timing system.

Replacing a confirmed worn, elongated or damaged chain can help:

• Restore accurate crankshaft/camshaft synchronisation
• Maintain correct valve timing
• Restore dependable mechanical timing
• Reduce excessive chain slack
• Reduce abnormal timing-chain noise
• Maintain reliable sprocket engagement
• Protect timing-chain guides
• Protect associated sprockets
• Reduce the risk of timing deviation
• Reduce the risk of the chain jumping
• Reduce the risk of chain derailment
• Support smooth engine operation
• Protect expensive internal engine components

Continuing to operate an engine with a confirmed timing-chain problem can allow wear to progress and substantially increase the cost of the eventual repair.

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

0PB109252C

The product you are viewing cross references to these numbers

Timing chain guide - side. 

Sold individually; x2 required per engine. 

Fits:

Porsche 987-2 Boxster / S 2009-12
Porsche 987-2 Cayman / S 2009-12

Porsche 981 Boxster / S 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman / S 2014-16
Porsche 981 Cayman GT4 2016

Porsche 718 (982) Boxster 2017>> 
Porsche 718 (982) Boxster Spyder 2019>> - Excludes RS
Porsche 718 (982) Cayman 2017>>
Porsche 718 (982) Cayman GT4 2019>> - Excludes RS

Porsche 997-2 Carrera 2009-12
Porsche 997-2 Turbo 2010-13 - Excludes GT2 RS

Porsche 991 Carrera 2012-19
Porsche 991 Turbo / GT2 RS 2014-20

Porsche 992-1 Carrera 2019-24
Porsche 992-2 Carrera 3.0L 2024>> - Excludes GTS Models With E-Turbo* 
Porsche 992-1 Turbo 2020>>

Diagram ref. 9. 

*NOTE: This guide is only compatible with the 992-2 Carrera 3.0L. It is not suitable for hybrid models, including the GTS, which features Porsche's E-Turbo technology. A different guide is required for these models.

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

0PB109514A

The product you are viewing cross references to these numbers

Timing chain guide rail. Sold each.



Fits:
Porsche 987.2 Boxster
Porsche 981 Boxster Spyder 2012 to 2016
Porsche 987.2 Cayman
Porsche 981 Cayman GT4 - 2016
Porsche 718 Cayman GT4 RS - 2022 Onwards
Porsche 997.2 Carrera / Carrera 4 - 2009 to 2012
Porsche 997.2 Carrera S / Carrera 4S - 2009 to 2012
Porsche 991 turbo - 2012 to 2018
Porsche 991 GT3 - 2012 to 2018
Porsche 992 GT3 - 2019 Onwards

Replaces OE numbers - 9A110515502, 9A110515503 and 9A110515504

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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

0PB109509A

The product you are viewing cross references to these numbers

Timing chain guide rail.



Fits:
Porsche 987.2 Boxster / Boxster S - 2009 to 2012
Porsche 981 Boxster S 3.4ltr - 2012 to 2016
Porsche 997.2 Cayman / Cayman S - 2009 to 2012
Porsche 981 Cayman S 3.4ltr - 2012 to 2016
Porsche 981 Cayman GT4 - 2016
Porsche 997.2 - Carrera / Carrera 4 - 2009 to 2012
Porsche 997.2 Carrera S / Carrera 4S - 2009 to 2019
Porsche 991.1 Carrera S  3.8ltr - 2012 to 2016
Porsche 991.1 Carrera 4S 3.8ltr - 2012 to 2016
Porsche 991 turbo - 2012 to 2016
Porsche 991 GT3 - 2012 to 2018

Replaces OE numbers 9A110515302 and 9A110515303

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

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

9A110515304

The product you are viewing cross references to these numbers

Timing Chain Slide Rail.
Keep your engine running with factory precision. The Timing Chain Guide Rail is an OEM Porsche component designed to maintain correct alignment and tension of the timing chain. By guiding chain movement smoothly and accurately, this rail helps ensure perfect synchronization between the crankshaft and camshafts — a critical factor for optimal engine performance, efficiency, and longevity.

Fits:

• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche Boxster 981 Spyder 3.8L 2016
• Porsche Boxster Spyder 718 4.0L (420 Bhp)
• Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
• Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
• Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
• 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 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 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
• Porsche 992.1 GT3 RS 4.0L 2022-24
• Porsche Cayman S / GTS 3.4L 981 2013-16
• Porsche Cayman GT4 3.8L 2015-16
• Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L  

Diagram Ref No 5

What This Product Does:

• The guide/slide rail helps maintain correct path and tension for the timing chain, preventing the chain from flopping, jumping, or hitting other components.

Symptoms Of Failure:

• Rattling or clattering noise from the timing chain cover area (especially at cold start or idle) because the chain may be loose and hitting the guide/rail or adjacent parts.
  
• Poor engine performance: misfires, rough idle, hesitation on acceleration. This is because incorrect timing = valves and pistons not synchronised.
  
• Check Engine Light: with timing or cam/crank correlation codes. If the chain jumps or the guide fails significantly, the timing can get out of spec, triggering the ECU. 
  
• Metal shavings in oil or oil pan (in more advanced wear). If the chain or guide breaks up, fragments can circulate.
  
• Engine won’t start or sudden failure in worst-case: if timing chain jumps many teeth or breaks, the engine may stop or suffer internal damage.
  
  

Why Replacement Matters:

• Because the timing chain and its guides are critical for engine timing: if the guide rail fails and allows the chain to slip, the engine’s valve timing will go off. This can lead to serious internal engine damage (valves hitting pistons, heavy wear) in many high-performance engines.
  
• Replacing the guide rail (and possibly the chain, tensioners, etc) before catastrophic failure helps avoid a full engine rebuild or replacement, which is far more expensive.
  
• Even though the part itself may not be extremely expensive (the guide rail), the labour cost of access is high (because to reach it you may need to remove covers, maybe ancillary components) — doing it early is more cost-effective.
• Ensures the engine continues to operate as designed, maintaining performance, reliability and longevity.

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

0PB109513A

The product you are viewing cross references to these numbers

Timing Chain Slide Rail.
This genuine OEM slide/guide rail is a critical component of the timing chain drive system for select Porsche models 911 991.2, 992.1, 992.2, 718 Boxster/Cayman 982. It ensures the timing chain tracks correctly, maintains proper tension, and prevents chain deflection or wear. Ideal when servicing the timing chain system or responding to noise/chain wear symptoms.
Sold Each.
x2 Required Per Car.

Fits:

• 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 Boxster GTS 718 4.0L Manual (400 Bhp)
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
• Porsche Boxster Spyder 718 4.0L (420 Bhp)
• Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
• 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 992.1 Carrera 2 3.0L 2019-24
• Porsche 992.1 Carrera 4 3.0L 2019-24
• Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
• Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
• Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
• Porsche 992.1 Targa 4 3.0L 2020-24
• Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
• Porsche 992.1 Turbo 3.8L 2020-24
• Porsche 992.1 Turbo S 3.8L 2020-24
• Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
• Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
• Porsche 992.2 Carrera 2 3.0L 2024>>
• Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>
• 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)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
• Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Diagram Ref No 5

What This Product Does:

• In a timing‐chain drive system (crankshaft → intermediate shaft → camshafts), there are guides/rails that the chain runs on. These guides keep the chain aligned, reduce vibration or deflection, and support tensioners in maintaining correct chain tension.
• The slide rail is one of these guiding components — it provides a smooth surface and correct route for the chain, and helps ensure the chain remains properly engaged with sprockets and tensioners.
• If the slide rail is worn, cracked or damaged, the chain may run with slack, contact adjacent components, produce noise, or even skip/skip-tooth under stress — which affects timing and can lead to engine damage.

When You Should Consider Replacement:

• You are already servicing the timing chain system (timing cover off, chain/guide/tensioner replacement) — since access is already required, replacing the guide rail is cost‐effective and prevents future access.
• You hear rattling or a clattering noise from the front of the engine (timing cover area) on cold start or idle, which can indicate chain deflection or guide wear.
  
• You have diagnostic codes relating to camshaft or intermediate shaft timing variations — a damaged or worn guide can cause chain timing to vary.
• Visual inspection (if cover removed) shows the guide rail is cracked, has excessive wear, gouges, or the chain has worn a groove in the rail.
• The vehicle has high mileage and the engine is performance-oriented — these guides can be wearing items and proactively replacing them improves long-term reliability.

Why Replacement Matters:

• Maintain timing accuracy & reliability: If the chain runs on a compromised guide, chain slack or mis-tracking can occur — which leads to timing drift, loss of power, or in worst cases, engine damage.
  
• Eliminate noise and improve smoothness: Worn guides allow chain slap, noise during engine operation, or rougher operation — replacing the slide rail restores proper chain path and quietness.
  
• Prevent escalated failure: A damaged guide could allow the chain to skip or jump, which on high-performance Porsche engines can mean valve-to-piston interaction and major damage.
  
• Efficient service: Since replacing a guide rail often requires similar labour as chain/tensioner replacement, doing it while the engine is opened saves future labour and increases reliability.

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

0PB109513B

The product you are viewing cross references to these numbers

Timing Chain Tensioner.
Ensure your Porsche’s timing chain drive remains correctly tensioned with this genuine OEM tensioner. Suitable for Porsche 911 991.2 / 992.1 and 982 Boxster/Cayman models, this critical component maintains chain tension from crank to cam or cam to cam, preventing slack, noise and timing errors.
Sold Each.
x2 Required Per Car.

Fits:

• 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 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)
• 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 992.1 Carrera 2 3.0L 2019-24
• Porsche 992.1 Carrera 4 3.0L 2019-24
• Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
• Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
• Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
• Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
• Porsche 992.1 Targa 4 3.0L 2020-24
• Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
• Porsche 992.1 Turbo 3.8L 2020-24
• Porsche 992.1 Turbo S 3.8L 2020-24
• Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
• Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24

Diagram Ref No 4

What This Product Does:

• The timing chain tensioner is a hydraulic (typically oil-fed) or spring-loaded device that takes up slack in the timing chain drive system. Without correct tension, the chain can “slap”, skip a tooth, or jump, which can cause serious engine timing errors.
• In an engine like the Porsche performance flat-six, accurate timing is critical. The tensioner ensures the chain remains properly seated against the guides/rails and avoids noise, mis-timing, or eventual failure.
• Because modern Porsche engines often use duplex chains, intermediate shafts and high rev operation, a precise tensioner is essential for durability, reliability and performance.

When You Should Consider Replacement:

• You hear rattling, clattering or ticking noises from the timing‐cover area on startup or idle — a classic symptom of a loose timing chain.
  
• Your car triggers engine fault codes related to camshaft timing, crankshaft–cam correlation, or variable valve timing errors, indicating possible timing chain slack or timing drive issues.
  
• You are doing major engine work (e.g., timing cover removal, chain/guide replacement) — since the tensioner is integral to the timing chain system, it’s prudent to replace it at the same time for full reliability.
• The engine has high mileage or service history, and you want to pre-emptively safeguard the chain drive.
• On visual inspection (if accessible) you find slack in the timing chain, worn guides/rails, or old/deteriorated tensioner components.

Why Replacement Matters:

• Engine protection: A faulty tensioner can allow the timing chain to jump or skip, which risks piston-to-valve contact, major engine damage, and costly repairs.
  
• Maintains precise timing & performance: Correct chain tension ensures accurate valve timing, smooth idle, full power delivery and reliability.
  
• Eliminates noise & improves reliability: Replacing a worn tensioner removes chain-slap noise and helps prevent future failure.
  
• Cost efficient when engine access is open: Since accessing the tensioner and chain drive requires substantial labour, replacing the tensioner while you’re already there avoids further job later.

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

0PB109507G

The product you are viewing cross references to these numbers

Timing Chain, Oil Pump / Crankshaft.
The PORSCHE Timing Chain, Oil Pump / Crankshaft 0PB109229B is a genuine Porsche internal engine drive component designed to provide the mechanical connection between the crankshaft drive and oil pump system on compatible Porsche applications.

Fits:

• Porsche Boxster Spyder RS 718 4.0L 01/2019>>
• Porsche 991.1 R 4.0L (500 Bhp) 2016
• Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
• 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 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
• Porsche 992.1 GT3 RS 4.0L 2022-24
• Porsche 992.2 GT3 2025>>
• Porsche Cayman GT4 RS 718 4.0L 

 
Diagram Ref No 2

The chain transfers rotational drive from the engine to the oil pump, allowing the pump to circulate engine oil through critical lubrication points. Reliable operation is essential because the engine depends on continuous oil circulation to lubricate bearings, crankshaft journals, camshaft components, timing components and other moving internal parts.

Although designed for extended service life, an oil pump drive chain operates continuously whenever the engine is running. Wear to the chain, sprockets, guides or tensioning components can eventually cause excessive slack, abnormal noise or unreliable oil pump drive.

What This Product Does:
The oil pump/crankshaft chain transfers mechanical rotation from the crankshaft drive system to the engine oil pump.

As the engine runs, the chain keeps the oil pump mechanically driven so that it can circulate engine oil throughout the lubrication system.

This supports lubrication of critical components including:

• Crankshaft bearings
• Connecting-rod bearings
• Camshaft components
• Valvetrain components
• Timing-system components
• Other internal moving and friction surfaces

The chain itself does not create oil pressure. Its function is to drive the oil pump; the pump and lubrication system are responsible for generating and maintaining the required oil flow and pressure.

Symptoms Of Wear Or Failure:
Possible symptoms of chain or associated drive-system deterioration include:

• Metallic rattling or clattering from the engine
• Mechanical chain noiseNoise that changes with engine RPM
  
• Excessive chain slack
• Chain elongation
• Visible wear to chain links or pins
• Abnormal sprocket wear
• Worn or damaged guides, where fitted
• Excessive tensioner movement, where applicable
• Metal or plastic debris in the engine oil
• Debris found in the oil filter
• Oil-pressure warning light
• Low oil-pressure warning message
• Oil-pressure-related diagnostic faults
• Abnormal engine noise caused by inadequate lubrication

A low oil-pressure warning does not automatically mean the drive chain has failed. Low oil level, a worn oil pump, blocked oil passages, pickup problems, incorrect oil, pressure-control faults, bearing wear or an oil-pressure sensor problem can produce similar symptoms.

Why Replacement Matters:
The Oil Pump / Crankshaft Timing Chain performs a critical mechanical function within the engine lubrication system.

Replacing a confirmed worn, elongated or damaged chain can help:

• Restore reliable oil pump drive
• Maintain dependable oil circulation
• Reduce excessive chain slack
• Reduce abnormal mechanical noise
• Restore reliable sprocket engagement
• Protect associated sprockets and guides
• Reduce the risk of chain derailment
• Reduce the risk of chain breakage
• Support correct engine lubrication
• Protect bearings and other internal engine components
• Reduce the risk of lubrication-related engine damage

Because the oil pump is essential to engine survival, a confirmed fault in its mechanical drive system should not be ignored.

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

0PB109229B

The product you are viewing cross references to these numbers