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IWIS Timing Chain 50046788

IWIS Timing Chain 50046788

IWIS
Disponibilidad:
5+ en stock, listo para ser enviado

Ships same or next business day

SKU 50046788
$88.99 - $88.99
$88.99
$88.99 - $88.99
$88.99
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CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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IWIS

Timing Chain

This product also goes by these part numbers: 11 31 1 741 746, 11311741746, 50046788

This part also goes by the following cross reference.

Cross Reference Part Number: 11311741746, 50046788

Fits These Vehicles 8 applications
BMW
Make Model Engine Years
BMW Z8 4.8V8 2003–2003
BMW X5 4.6V8 2002–2003
BMW X5 4.4V8 2000–2003
BMW 540i 4.4V8 1997–2003
BMW 740iL 4.4V8 1996–2001
BMW 740i 4.4V8 1997–2001
BMW 840Ci 4.4V8 1996–1997
Land Rover
Make Model Engine Years
Land Rover Range Rover 4.4V8 2003–2005

Fitment data last updated: 2026-06-30

Fits 8 vehicle applications Check vehicle fitment before ordering View fitment

About these Timing Chain Components

The IWIS 50046788 is part of your engine's timing chain system, which keeps the camshafts turning in step with the crankshaft. The chain runs on guides and is kept tight by a tensioner; when any of these wear, the timing can drift or the chain can jump.

Frequently asked questions

What are the signs of a worn timing chain?

A rattle from the front of the engine, especially on a cold start, a check-engine light with camshaft or crankshaft correlation codes, rough running, or reduced performance.

Should timing chain parts be replaced together?

Yes. The chain, guides, rails and tensioner wear together, so replacing them as a set avoids repeating a labor-intensive job. Replace any single-use bolts and seals disturbed during the work.

What happens if a timing chain fails?

On many engines the valves and pistons share the same space, so a jumped or broken chain can cause severe internal engine damage. That is why early signs like cold-start rattle should be investigated promptly.

Can I replace timing chain components myself?

It requires engine-specific locking tools and precise timing procedures, and errors can damage the engine. It is best done by an experienced technician or a well-equipped enthusiast following the factory procedure.

How do I make sure this timing chain part fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

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