Cheap BMW M8 Gearbox

The BMW M8 was launched in 2019 and runs as a single generation through to the current model, so a 2020 and 2022 unit share the same fundamental platform and the S63 4.4-litre twin-turbo V8 engine code. Mechanical fitment is driven primarily by the engine code, so these years are broadly compatible, but ancillary components, mounts, and wiring connectors can change quietly during a production run — confirm the exact match against your registration with the breaker before buying. Never assume fitment without that check.

The Competition and standard M8 both use the same S63 engine code and the same eight-speed M Steptronic automatic gearbox unit, so trim level does not affect gearbox fitment here. The differences between Competition and standard M8 are tuning, suspension, and cosmetic — not the gearbox internals or casing. That said, confirm the exact part numbers against your registration with the breaker, as software calibration and ECU pairing are separate matters the breaker cannot always guarantee on a used unit.

The BMW M8 received a facelift for the 2022 model year, refreshing styling and infotainment but retaining the S63 engine; because gearbox fitment follows the engine code above all else, the core unit is broadly the same across that boundary. However, ancillary items such as mounts, cooling lines, and harness connectors can be revised at a facelift point, so you must confirm compatibility across the pre- and post-2022 boundary directly with the breaker against your specific registration. Crossing a facelift boundary is exactly the situation where a quick VIN check with the supplying breaker is essential before committing.

Yes — gearbox type is one of the most important fitment factors. The BMW M8 was only offered with the eight-speed M Steptronic automatic transmission in the UK market, so you are unlikely to encounter a manual M8 gearbox in a UK breaker's yard, but always state 'automatic' explicitly when requesting a quote to avoid any ambiguity. Confirm with the breaker that the unit supplied matches your transmission type.

No — body style does not determine gearbox fitment on the M8. All M8 body variants share the S63 engine code and the same eight-speed M Steptronic automatic gearbox, so a unit pulled from any body style is mechanically the same gearbox. Focus on the engine code and model year when speaking to a breaker, and ignore body style as a fitment criterion for this part.

This is a real concern with modern BMW drivetrains — the gearbox control unit may need to be matched or coded to your car's ECU, and immobiliser interaction can also be a factor. We can't state exactly what coding work will be required in your specific case, so confirm with the breaker what the unit includes and discuss coding requirements with a BMW specialist or main dealer before installation. Never assume a used gearbox will simply plug in and run without any software work.