BMW Timing Chain Guide / Upper Slide Rail 11317592850 – Genuine BMW

Product Description

The Genuine BMW Timing Chain Guide 11317592850 is an important component of the engine’s timing system. Also known as a slide rail, chain guide, guide rail or tensioner rail, it helps guide and control the timing chain as it operates inside the engine.

BMW OE number 11317592850, written as 11 31 7 592 850, is the updated replacement for earlier BMW timing-chain guide numbers 11317516079 and 11317584651. BMW parts catalogues identify it as a genuine BMW slide rail / timing chain guide.

The guide rail is designed to work with the timing chain and tensioning system to maintain proper chain movement. A worn or damaged guide can contribute to excessive timing-chain movement and, in severe cases, allow the chain to move out of its intended timing position.

BMW Part Details

BMW Part Number: 11317592850
BMW OE Format: 11 31 7 592 850
Product: Timing Chain Guide / Slide Rail
Position: Upper timing-chain guide
Brand: Genuine BMW
Replaces: 11317516079
Also Replaces: 11317584651
System: Engine timing / valve train

BMW Timing Chain Guide Function

The timing chain is responsible for synchronizing the crankshaft and camshaft(s), allowing the engine’s valves to open and close at the correct time.

The 11317592850 slide rail provides a controlled surface for the timing chain and forms part of the chain-guiding system. It works together with the timing chain, tensioner and other guide rails.

A worn timing-chain guide may contribute to:

Timing-chain rattling
Increased chain movement
Noise from the timing-chain area
Timing-related fault codes
Poor engine operation
Incorrect valve timing if severe wear allows the chain to move excessively

A proper inspection should normally include the timing chain, tensioner and guide rails rather than replacing only one component without checking the rest of the system.

BMW Model & Engine Applications

BMW 11317592850 is used across a wide range of BMW petrol-engine applications. Catalogue data identifies applications including 3.0L petrol engines, selected 2.0L engines and later 3.0L petrol engines.

Examples of documented applications include:

BMW 1 Series E81/E82/E87/E88
BMW 3 Series E90/E91/E92/E93
BMW 5 Series E60/E61
BMW X1 E84
BMW X3 E83
BMW X5 E70
BMW X6 E71
BMW Z4 E85/E86/E89

Specific engine applications include selected N52, N55 and N20 petrol engines. For example, the part is listed for BMW E60 525i/528i/530i with N52, E70 X5 applications, E71 X6 xDrive35i with N55, E84 X1 sDrive28i with N20, and selected E82 128i/135i applications.

RealOEM also lists the part in the timing-chain system of the BMW Z4 E86 3.0si and documents the earlier part numbers that it supersedes.

Important Fitment Note

Because 11317592850 is used across several BMW engine families, the exact application must be confirmed using the vehicle’s VIN/chassis number, engine and production date before ordering.

Why Replace a Worn Timing Chain Guide?

Timing-chain guide rails are exposed to continuous chain movement and engine operating temperatures. If a guide becomes worn or damaged, it can affect how the chain is controlled.

Replacing a worn guide can help:

Maintain proper timing-chain guidance
Reduce excessive chain movement
Support accurate engine timing
Protect other timing-system components
Restore the correct timing-chain arrangement

ECS Tuning recommends replacing the guide when wear is detected because damaged timing components can allow the chain to skip timing and potentially result in more serious engine problems.

Genuine BMW Replacement

The Genuine BMW 11317592850 is the current replacement for earlier guide-rail numbers 11317516079 and 11317584651. This makes it particularly important when replacing an older timing-chain guide during an engine repair or timing-chain service.

Buy BMW Timing Chain Guide 11317592850 in Nairobi

Looking for a BMW timing chain guide in Nairobi?

Bavarian Trading Company Limited supplies genuine and OEM-quality BMW spare parts in Nairobi. We have a BMW spare-parts shop and garage located at Adams Arcade, off Ngong Road, Nairobi.

Order BMW Timing Chain Guide 11317592850 Today

If your BMW requires timing-chain repair or you are replacing worn timing components, make sure you use the correct guide rail for your engine.

Contact Bavarian Trading Company Limited today to order BMW Timing Chain Guide 11317592850.

Send us your BMW VIN/chassis number and we can help confirm the correct application before you purchase.

Need the timing-chain repair done? We can also supply and fit the component at our Nairobi garage.

Important Fitment Notice

BMW 11317592850 has multiple applications, but compatibility varies according to the BMW model, engine, production date and timing-chain configuration. Always verify the part against your VIN before ordering.