Second Hand BMW M2 Crankshaft

Yes, every variant of the BMW M2 is petrol-engined and uses an internal combustion engine, so a crankshaft is a core component in every M2 ever built. The F87 generation (2016–2021) used the S55 straight-six (Competition from 2018) and the G87 generation (2023-onwards) uses the S58 straight-six, and each engine has its own distinct crankshaft. Used crankshafts from M2s do appear at UK breakers, though supply is naturally limited given how rarely these cars are written off. Always supply your engine code and registration when requesting a quote.

The pre-Competition F87 M2 used the N55 engine, while the 2018 M2 Competition switched to the S55 unit — these are fundamentally different engines with different crankshafts, so they will not interchange. The engine code is the single most important detail here: N55 and S55 crankshafts are not the same part despite both being 3.0-litre straight-sixes. Always confirm your engine code via your V5 or a VIN check before ordering, and give that code directly to the breaker.

No — the M2 is offered in a single performance trim (with the Competition and CS variants being separate model designations rather than trim grades in the traditional sense), and trim level has no bearing whatsoever on crankshaft fitment. What matters entirely is the engine code: S55 for the Competition and CS, N55 for the standard pre-2018 F87. Colour, interior spec, and any factory options are completely irrelevant to this part.

The M2 Competition shares the S55 engine architecture with the F80 M3 and F82 M4, so the internal components including the crankshaft are closely related. In principle the crankshaft specifications may be compatible, but you should confirm the exact part number with the breaker against both registrations before purchasing, as there can be production-run variations in ancillary and balancing specifications. Sourcing from an M3 or M4 breaker can be a practical way to find this part given greater availability from those models.

Within the same engine family, crankshafts are generally consistent across the F87 production run (2016–2021), but the key dividing line is the engine code change in 2018 when the Competition arrived with the S55 replacing the N55. If your car is a 2018 or later M2 Competition or CS, only an S55 crankshaft is correct; if it is a pre-2018 standard M2, you need the N55 unit. Confirm your engine code from your V5 or a VIN check and quote it to the breaker to be certain.

The G87 M2 uses the S58 engine, which is a different unit again from the S55 in the F87 Competition, so you must specifically request an S58 crankshaft. Supply from G87 breakers is likely to be very limited given how recently the car arrived on UK roads, so be prepared for a longer search or to consider new/reconditioned options alongside used. Give the breaker your full registration number and engine code so they can match the correct specification, as S58 variants also appear in the M3 and M4 and there may be minor production differences to verify.