Used BMW M8 Timing Chain

Yes, every variant of the BMW M8 uses a timing chain rather than a timing belt — the S63 4.4-litre twin-turbocharged V8 engine fitted across the M8 range is a chain-driven engine by design, so a timing chain is a genuine part on this model. This applies whether your car is the Coupé, Convertible, or Gran Coupé body style, and whether it is a standard M8 or the Competition variant, as all share the same S63 engine family. You are in the right place searching for this part.

The BMW M8 was introduced in 2019 and remains in production, all built around the S63M engine, so on the face of it the core timing chain components are closely related across that span. However, BMW does make running production changes, and there was a subtle mid-cycle update around 2022, so whether a chain from an early car crosses cleanly to a later one is something you should confirm with the breaker against your exact registration and engine code rather than assume. Supplying your engine code from your V5 or a VIN check will let the breaker verify compatibility quickly.

Trim level does not affect timing chain fitment here — both the standard M8 and the M8 Competition use the same S63 4.4-litre twin-turbo V8 engine, so the timing chain hardware is the same regardless of the Competition badge. The Competition variant differs in tune, suspension settings, and interior detailing, none of which affect the chain. Quote requests for either trim can therefore be treated the same way for this part, though confirming the engine code is always good practice.

No, body style makes no difference to the timing chain — all three M8 body styles share the S63 V8 engine, and the timing chain is determined entirely by the engine, not the shape of the car. A chain pulled from a Gran Coupé donor is mechanically the same as one from a Coupé or Convertible. Focus your search on matching the engine code rather than the body style.

The standard 8 Series uses different engines depending on variant, such as the B58 straight-six or the N63 V8, and these are entirely different engine families from the M8's S63 unit, meaning their timing chains are not interchangeable. Always check that any part you are quoted is specifically listed against the S63 engine code rather than a generic 8 Series listing. Your V5 will show the engine code, and giving that to the breaker at the point of enquiry is the single most useful thing you can do to avoid an expensive mismatch.

Yes — give the breaker your full engine code (found on your V5 registration document or via a VIN check), your registration year, and your mileage, as timing chain condition is closely related to service history on the S63 engine. The S63 has a known sensitivity to oil service intervals, and a reputable breaker will want to know the donor vehicle's history as well as match the code. Whether ancillary components such as tensioners, guides, and sprockets are included in a listing is worth confirming directly with the breaker, as these can vary between supplied kits.