Chains & Tensioners

Engine timing chain tensioner, upper.



Fits:
Porsche 958 Cayenne Hybrid 3.0L 2010-18
Porsche 970 Panamera Hybrid 3.0L 2011-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 29 (LEFT) or 33 (RIGHT)

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PAC10921

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Engine timing chain tensioner.



Fits:
Porsche 958 Cayenne 3.0L Hybrid 2011-18
Porsche 970 Panamera 3.0L Hybrid 2013-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 26

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95810550710

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Engine Timing Chain Tensioner. 

The OE MATCH Engine Timing Chain Tensioner is an OE-matching Porsche engine timing system component designed to maintain the correct tension on the engine timing chain. By applying controlled pressure to the timing chain guides, the tensioner ensures accurate synchronisation between the crankshaft and camshaft, which is essential for proper valve timing and engine performance.

Fits:

• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
• Porsche 970.1 Panamera S Hybrid V6 3.0L 2013
• Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16  

Diagram Ref No 26

What This Product Does:

• Maintains correct tension on the engine timing chain
• Ensures accurate camshaft and crankshaft synchronisation
• Prevents timing chain slack and vibration
• Supports smooth engine operation and valve timing
• Helps reduce timing chain noise and wear
• Maintains reliable engine performance and efficiency

Symptoms Of Wear Or Failure:

• Rattling noise from the engine, especially during cold starts
• Engine timing irregularities or misfires
• Check engine light related to timing faults
• Poor engine performance or rough running
• Excessive timing chain slack or vibration
• Difficulty starting the engine
• Potential timing chain jump or engine damage in severe cases  

Why Replacement Matters:

• Restores proper timing chain tension and alignment
• Maintains accurate valve timing and engine performance
• Reduces timing chain noise and vibration
• Prevents premature wear of timing chain components and guides
• Helps avoid serious engine damage caused by timing chain failure
• Supports long-term engine reliability and smooth operation
• Ensures dependable OE-level timing system performance

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Related, superseded, cross reference or alternative numbers for comparison.

95810550710

The product you are viewing cross references to these numbers

Engine timing chain tensioner.



Fits:
Porsche 958 Cayenne Hybrid 3.0L 2010-18
Porsche 970 Panamera Hybrid 3.0L 2011-16

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

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PAC109507

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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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Oil Pump Drive Chain.
The Genuine Porsche Oil Pump Drive Chain 94810725212 is a critical internal engine component designed to transfer mechanical drive to the oil pump on compatible Porsche applications.

Fits:

• Porsche 957 Cayenne S / GTS 4.8L 2007-10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
• Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 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 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 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 15

The engine oil pump must operate continuously while the engine is running to circulate lubricant to bearings, rotating assemblies, timing components and other internal surfaces. The oil pump drive chain provides the mechanical connection required to operate the pump reliably.

Excessive chain wear, elongation or damage can compromise the oil pump drive and, in severe cases, contribute to loss of lubrication. Because inadequate oil circulation can rapidly cause expensive internal engine damage, a worn or damaged oil pump drive chain should be addressed promptly.

What This Product Does:
The oil pump drive chain transfers rotational movement from the engine's mechanical drive system to the oil pump.

The oil pump then circulates engine oil through the lubrication system to critical internal components.

The chain therefore helps support:

• Reliable operation of the engine oil pump
• Continuous engine oil circulation
• Correct lubrication of internal components
• Protection of bearings and rotating assemblies
• Lubrication of timing and valvetrain components
• Reduction of friction and mechanical wear
• Reliable long-term engine operation

The chain itself does not generate oil pressure. Instead, it provides the mechanical drive required for the oil pump to function.

Symptoms Of Wear Or Failure:
Oil pump drive chains are designed for extended service life, but wear can develop due to mileage, lubrication problems, contamination or deterioration of associated components.

Possible symptoms include:

• Rattling from the chain or drive area
• Metallic clattering or chain noise
• Excessive chain slack
• Chain elongation
• Visible chain wear during inspection
• Abnormal sprocket wear
• Low oil-pressure warning
• Oil-pressure related faults
• Abnormal engine noise associated with inadequate lubrication
• Metal particles or debris in the engine oil or filter

Some oil pump drive chain problems may provide little warning before becoming serious, so any confirmed abnormal wear should be investigated promptly.

Why Replacement Matters:
The oil pump drive chain performs a fundamental role in the engine lubrication system.

Replacing a confirmed worn or damaged Porsche Oil Pump Drive Chain 94810725212 can help:

• Restore reliable mechanical drive to the oil pump
• Maintain dependable engine oil circulation
• Reduce excessive chain movement
• Correct confirmed chain elongation
• Protect associated sprockets and drive components
• Support correct engine lubrication
• Reduce the risk of oil pump drive failure
• Help protect expensive internal engine components

Because lubrication is essential whenever the engine is running, deterioration of the oil pump drive should not be ignored.

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

94810725212

The product you are viewing cross references to these numbers

Oil Pump Drive Chain.
The IWIS Oil Pump Drive Chain is a replacement internal engine drive chain for compatible Porsche applications. It forms an important part of the engine lubrication system by transmitting mechanical drive to the oil pump, allowing the pump to circulate lubricating oil throughout the engine while it is running.

Fits:

• Porsche 957 Cayenne S / GTS 4.8L 2007-10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
• Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 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 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 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 15

The engine oil pump must operate continuously while the engine is running to circulate lubricant to bearings, rotating assemblies, timing components and other internal surfaces. The oil pump drive chain provides the mechanical connection required to operate the pump reliably.

Excessive chain wear, elongation or damage can compromise the oil pump drive and, in severe cases, contribute to loss of lubrication. Because inadequate oil circulation can rapidly cause expensive internal engine damage, a worn or damaged oil pump drive chain should be addressed promptly.

What This Product Does:
The oil pump drive chain transfers rotational movement from the engine's mechanical drive system to the oil pump.

The oil pump then circulates engine oil through the lubrication system to critical internal components.

The chain therefore helps support:

• Reliable operation of the engine oil pump
• Continuous engine oil circulation
• Correct lubrication of internal components
• Protection of bearings and rotating assemblies
• Lubrication of timing and valvetrain components
• Reduction of friction and mechanical wear
• Reliable long-term engine operation

The chain itself does not generate oil pressure. Instead, it provides the mechanical drive required for the oil pump to function.

Symptoms Of Wear Or Failure:
Oil pump drive chains are designed for extended service life, but wear can develop due to mileage, lubrication problems, contamination or deterioration of associated components.

Possible symptoms include:

• Rattling from the chain or drive area
• Metallic clattering or chain noise
• Excessive chain slack
• Chain elongation
• Visible chain wear during inspection
• Abnormal sprocket wear
• Low oil-pressure warning
• Oil-pressure related faults
• Abnormal engine noise associated with inadequate lubrication
• Metal particles or debris in the engine oil or filter

Some oil pump drive chain problems may provide little warning before becoming serious, so any confirmed abnormal wear should be investigated promptly.

Why Replacement Matters:
The oil pump drive chain performs a fundamental role in the engine lubrication system.

Replacing a confirmed worn or damaged Oil Pump Drive Chain can help:

• Restore reliable mechanical drive to the oil pump
• Maintain dependable engine oil circulation
• Reduce excessive chain movement
• Correct confirmed chain elongation
• Protect associated sprockets and drive components
• Support correct engine lubrication
• Reduce the risk of oil pump drive failure
• Help protect expensive internal engine components

Because lubrication is essential whenever the engine is running, deterioration of the oil pump drive should not be ignored.

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94810725212

The product you are viewing cross references to these numbers

Primary timing chain - connects the crankshaft to the two sprockets that drive the camshafts. 

Fits:
Porsche 958 Cayenne S Diesel 4.2L V8 2013-18

Diagram ref. 1.


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958109229A

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Primary timing chain - connects the crankshaft to the two sprockets that drive the camshafts and also drives the balance shaft.

Fits:
Porsche 957 Cayenne 3.0L V6 Diesel 2007-11
Porsche 958 Cayenne 3.0L V6 Diesel - 2011 model year only*

Diagram ref. 1.

*NOTE: This timing chain is only compatible with first-year 958 Cayenne diesel models featuring the engine code 059E. From 2012 onward, the diesel model adopted a different engine, making this chain unsuitable for later versions. If you are unsure, please do not hesitate to contact us with your vehicle's VIN number, and we'll be happy to confirm compatibility. 

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958109229A

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Primary Timing Chain/Balance Shaft Drive.
The IWIS Primary Timing Chain / Balance Shaft Drive is a replacement internal engine drive-chain component for compatible Porsche applications. It forms part of the engine's timing and balance-shaft drive system, transmitting rotational movement between key internal components to maintain the required mechanical relationship during engine operation.

Fits:

• Porsche 957 Cayenne 3.0L Diesel 2007-10
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2011

Diagram Ref No 1

Timing and balance-shaft drive components operate continuously whenever the engine is running. Wear, elongation or damage to the chain can introduce excessive slack, noise and inaccurate drive operation. If deterioration becomes severe, there is a risk of the chain jumping or failing, potentially resulting in significant internal engine damage.  

What This Product Does:

The primary drive chain transfers rotational movement through the engine's internal drive system.

Depending on the specific engine configuration, it forms part of the mechanical drive arrangement responsible for maintaining the required relationship between the crankshaft, timing system and balance-shaft assembly.

Its functions help support:

• Accurate mechanical drive within the timing system
• Correct synchronisation of associated engine components
• Reliable balance-shaft operation
• Smooth engine operation
• Controlled transfer of rotational movement
• Consistent timing-system performance
• Reduced unwanted engine vibration through correct balance-shaft operation

The chain must remain correctly tensioned and properly engaged with its associated sprockets throughout engine operation.

Symptoms Of Wear Or Failure:
Timing and balance-shaft chains are designed for extended service life, but wear can develop through mileage, inadequate lubrication, contamination or deterioration of associated tensioners, guides and sprockets.

Possible symptoms include:

• Rattling from the timing-chain area
• Metallic clattering or chain noise
• Excessive chain slack
• Chain elongation
• Abnormal noise during cold start
• Noise that changes with engine speed
• Increased engine vibration
• Rough or less refined engine operation
• Timing-related fault codes
• Crankshaft/camshaft correlation faults where relevant
• Balance-shaft related faults where monitored
• Visible wear on the chain during inspection
• Worn or damaged chain guides
• Abnormal sprocket wear
• Metal or plastic debris in the engine oil or filter

These symptoms can also be caused by other timing-system or internal engine components, so accurate diagnosis is important.

Why Replacement Matters:
The primary timing and balance-shaft drive chain is an important internal engine component.

Replacing a confirmed worn, elongated or damaged IWIS Primary Timing Chain / Balance Shaft Drive can help:

• Restore reliable chain-drive operation
• Maintain correct mechanical synchronisation
• Reduce excessive chain slack
• Reduce abnormal timing-chain noise
• Restore reliable balance-shaft drive
• Help maintain smooth engine operation
• Protect associated guides and sprockets
• Reduce the risk of the chain jumping
• Reduce the risk of major timing-system failure
• Protect expensive internal engine components

A worn chain should not be ignored once it has exceeded the permitted service specification.

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

958109229A

The product you are viewing cross references to these numbers

Timing chain - drives oil pump. 

Fits:
Porsche 957 Cayenne 3.0L V6 Diesel - 2007-10
Porsche 958 Cayenne 3.0L V6 Diesel - 2011 model year only*

Diagram ref. 30.

*NOTE: This timing chain is only compatible with first-year 958 Cayenne diesel models featuring the engine code 059E. From 2012 onward, the diesel model adopted a different engine, making this chain unsuitable for later versions. If you are unsure, please do not hesitate to contact us with your vehicle's VIN number, and we'll be happy to confirm compatibility. 

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

958109465

The product you are viewing cross references to these numbers

Timing Chain / Oil Pump Drive.
The IWIS Timing Chain / Oil Pump Drive is a replacement internal engine drive-chain component for compatible Porsche applications. Designed for the engine's oil pump drive system, it transfers mechanical rotation through the chain drive to help ensure continuous operation of the oil pump while the engine is running.

Fits:

• Porsche 957 Cayenne 3.0L Diesel 2007-10
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2011

Diagram Ref No 30

Reliable oil pump drive is essential because the lubrication system must continuously circulate engine oil to bearings, rotating assemblies, timing components and other internal surfaces. Excessive chain wear, elongation or damage can compromise the drive system and, in severe cases, contribute to loss of oil circulation and serious engine damage.  

What This Product Does:

This chain forms part of the mechanical drive system responsible for operating the engine oil pump.

It transfers rotational movement through the engine's drive system to the oil pump, allowing the pump to circulate lubricating oil throughout the engine.

Its function helps support:

• Reliable oil pump operation
• Continuous engine oil circulation
• Correct lubrication of internal engine components
• Protection of crankshaft and connecting-rod bearings
• Lubrication of camshaft and valvetrain components
• Lubrication of timing-system components
• Reduction of internal friction and wear
• Reliable long-term engine operation

The chain itself does not generate oil pressure. It provides the mechanical drive required for the oil pump to operate.

Symptoms Of Wear Or Failure:
Oil pump drive chains are designed for long service life, but wear can develop due to mileage, lubrication problems, contamination or deterioration of associated components.

Possible symptoms include:

• Metallic rattling or clattering
• Chain noise from the drive area
• Excessive chain slack
• Chain elongation
• Visible chain wear or damage
• Abnormal sprocket wear
• Excessive movement within the chain drive
• Low oil-pressure warning
• Oil-pressure related fault messages
• Abnormal engine noise associated with inadequate lubrication
• Metal particles or debris in the engine oil or oil filter

Some chain-drive problems may provide limited warning before becoming serious, so confirmed excessive wear should be addressed promptly.

Why Replacement Matters:
The oil pump drive chain performs an important role in maintaining reliable engine lubrication.

Replacing a confirmed worn, elongated or damaged IWIS Timing Chain / Oil Pump Drive can help:

• Restore dependable mechanical drive to the oil pump
• Maintain reliable engine oil circulation
• Reduce excessive chain slack
• Reduce abnormal chain noise
• Correct excessive chain elongation
• Protect associated sprockets and drive components
• Reduce the risk of oil pump drive failure
• Support correct engine lubrication
• Protect expensive internal engine components

Because the lubrication system is critical to engine survival, deterioration within the oil pump drive should not be ignored.

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

958109465

The product you are viewing cross references to these numbers