do not press the back button…
Your Vehicle
Porsche // 924 (1977-1988) // 924 Carrera GT 2.0L 1981
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
The IWIS Timing Chain Centre Lower is a replacement internal engine timing component for compatible Porsche applications. Positioned within the centre lower section of the engine timing system, this chain transfers rotational drive between associated timing components and helps maintain the precise mechanical synchronisation required for correct engine operation.
Fits:
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Diagram Ref No 28
Timing chains operate continuously whenever the engine is running and are exposed to repeated mechanical loads, high temperatures and constant movement. Although engineered for long service life, gradual wear can occur within the chain and its associated guides, tensioners and sprockets.
A worn, elongated or damaged centre lower timing chain can develop excessive slack, create abnormal mechanical noise and affect timing-system operation. Severe deterioration can increase the risk of the chain jumping, derailing or failing, potentially resulting in significant internal engine damage.
What This Product Does:
The centre lower timing chain forms part of the engine's mechanical timing drive.
Its purpose is to transmit rotational movement between associated timing-system components while maintaining the required relationship between them.
The chain helps support:
- Accurate operation of the engine timing system
- Reliable transfer of rotational drive
- Correct mechanical synchronisation
- Stable engine operation
- Consistent timing throughout the engine-speed range
- Reliable operation of associated timing components
Correct chain tension, lubrication and sprocket engagement are essential for dependable operation.
Symptoms Of Wear Or Failure:
Possible symptoms of timing-chain or associated timing-system deterioration include:
These symptoms can also result from other timing-system or internal engine components, so correct diagnosis is important.
Why Replacement Matters:
The centre lower timing chain is an important internal engine component.
Replacing a confirmed worn, elongated or damaged IWIS Timing Chain Centre Lower can help:
- Restore reliable timing-system operation
- Maintain accurate mechanical synchronisation
- Reduce excessive chain slack
- Reduce abnormal timing-chain noise
- Restore dependable sprocket engagement
- Protect associated guides and sprockets
- Reduce the risk of timing deviation
- Reduce the risk of chain derailment
- Reduce the risk of the chain jumping
- Support smooth engine operation
- Protect expensive internal engine components
Continued operation with a confirmed timing-chain problem can allow deterioration to progress and significantly increase repair costs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
958109465A
The product you are viewing cross references to these numbers