Original BMW M62 V8 Sliding Piece, Upper Timing Chain Tensioner, for BMW 540i, 740i, 740iL, X5, Z8, and Land Rover Range Rover (1998–2005)

The Original BMW sliding piece 11-31-1-435-028 is the plastic timing chain guide that rides on the upper camshaft chain tensioner of the M62 V8, fitting the 540i, 740i, 740iL, X5 4.4i and 4.6is, Z8 Alpina, and 2003–2005 Land Rover Range Rover. Timing chain guides keep the chain on its path around the crankshaft and camshaft sprockets, and they work with the tensioner to hold the chain at the right tension. A chain-driven valvetrain is naturally noisier than a belt drive, and the plastic face on the guide is what quiets it. That plastic can wear down to the metal behind it, which brings noise from the timing case and can upset cam timing. This piece weighs just 8 grams and is sold individually.

Original BMW Parts carry a 24-month parts warranty.

BMW calls this part a sliding piece and shows production from September 1998. It took over from the earlier number 11-31-1-742-175, and BMW marks that change as not exchangeable retrospectively, so the older and newer numbers should not be swapped freely on engines built before the change. The guide is made in Germany. BMW lists it as the guide for the upper camshaft chain tensioner.

Technical Details

• Manufacturer: BMW (Original BMW)
• Part number: 11-31-1-435-028
• BMW part name: sliding piece
• Position: upper camshaft chain tensioner
• Weight: 8 g (0.28 oz)
• Production start: September 1998
• Replaces 11-31-1-742-175 (not exchangeable retrospectively)
• Made in Germany
• Sold individually
• Warranty: 24 months

Common Questions

What symptoms point to a worn chain guide?
A rattling or clattering noise from the engine, most often at start-up or idle, is the most common sign. Severe wear can let the chain slip, leading to misfires, stalling, or hard starting.

Does this part supersede 11-31-1-742-175?
Yes. BMW shows 11-31-1-742-175 as the old number, with production of this version from September 1998.

Fitment & Compatibility

Use the fitment table below to confirm the exact year, make, model, submodel, and any application notes before ordering. Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.