Cheap BMW M8 Crankshaft

Yes, every variant of the BMW M8 (F91/F92/F93, produced from 2019 onwards) is fitted with a 4.4-litre twin-turbocharged V8 petrol engine, and a crankshaft is a core internal component of that engine. Whether you need a used crankshaft due to bearing failure, damage, or a rebuild, breakers who have dismantled an M8 can supply one. Always confirm the engine code from your V5 or a VIN check before ordering, as this is the most reliable way to ensure you get the correct part.

The BMW M8 (F91 Coupe, F92 Convertible, F93 Gran Coupe) runs throughout its generation from 2019 onwards using the S63 V8 engine family, so on paper early and later cars share the same fundamental engine architecture. However, BMW does make running production changes to internal components that may not be obvious from the outside, so you should confirm your exact engine code with the breaker and cross-reference it against the donor vehicle before purchasing. Never assume fitment is guaranteed purely on year alone.

No — body style has no bearing on crankshaft fitment whatsoever. All three M8 body styles (F92 Coupe, F91 Convertible, F93 Gran Coupe) use the same S63 V8 engine, so the crankshaft is determined entirely by the engine code, not by which body style you drive. Give your engine code to the breaker rather than your body style when requesting a quote.

The standard M8 and M8 Competition both use the S63 V8 engine, and the Competition trim primarily delivers its additional power through software, exhaust, and suspension changes rather than a fundamentally different bottom-end specification. In practice the crankshaft is shared across both variants, but because BMW does revise internal engine components, you should always supply your engine code to the breaker and ask them to confirm the part matches your specific build rather than relying on the trim name alone.

The engine code is the single most important detail you can provide — for the BMW M8 this will be a variant of the S63 family, and you can find it on your V5 registration document or by running a VIN check. Supplying this code lets the breaker verify the donor engine matches yours precisely, which matters far more than quoting the model year or trim level. Without the engine code you risk receiving a crankshaft that looks correct but has dimensional or tolerance differences that prevent a proper fit.

The BMW M8 was only ever offered with a petrol engine — there is no diesel or hybrid variant of the M8 in the UK market. This means all M8 crankshafts sourced from breakers will be from petrol S63 V8-powered cars, and fuel type is not a variable you need to worry about for this model. Simply confirm your engine code with the breaker to ensure an accurate match.