BMW M8 Turbo Replacement Parts

The BMW M8 (F91/F92/F93 generation) ran from 2019 onwards, all built around the S63 4.4-litre twin-turbocharged V8 engine, so within that generation year-to-year differences are less critical than the engine code itself. Confirm the engine code from your V5 or a VIN check and supply it to the breaker, as ancillary mounting or specification changes mid-production can affect whether a direct swap is straightforward. Never assume fitment on year alone – always confirm against your registration with the breaker.

Both the standard M8 and the M8 Competition use the S63 V8 engine, so the trim level itself does not determine turbo fitment – what matters is the engine code. The Competition has a higher power output, which may mean differences in turbo specification or mapping, so supply your exact engine code to the breaker and ask them to cross-reference against the donor car's code rather than relying on the badge alone. Trim level is not a fitment shortcut here.

The M8 was offered in Coupe (F92), Convertible (F91), and Gran Coupe (F93) body styles, and all share the S63 twin-turbo V8, so body style does not drive turbo fitment. The engine code is what matters, and a turbo from a Gran Coupe donor can in principle suit a Coupe or Convertible of matching engine spec – confirm this against your registration with the breaker before purchasing. Body style differences are largely cosmetic and structural, not mechanical in this context.

The M8 received a facelift in 2022, giving updated styling and some specification changes, but the core S63 engine architecture carried across the facelift boundary. Whether a specific turbo assembly interchanges cleanly across that 2022 boundary – particularly regarding ancillary connections or mounting brackets – is something you should confirm with the breaker against your exact registration and engine code, as mid-cycle changes are not always reflected in the headline engine designation. Name the donor car's year and your car's year to the breaker so they can check.

The S63 engine code (sometimes quoted with a suffix such as S63B44T4) is the most useful single piece of information you can supply when sourcing a used turbo for your M8. You can find the full engine code on your V5 logbook or by running a VIN check, and giving this to the breaker is far more reliable than quoting the model year or trim badge alone. Matching engine codes gives the breaker the best chance of pulling a compatible unit from their stock.

The standard 8 Series uses different petrol engines – such as the B58 straight-six in the 840i – which are entirely separate units from the S63 V8 in the M8, so turbos are not interchangeable between them. Always confirm the engine code from your V5 before searching, as the M8 and 8 Series share a platform and body but not their engines or forced-induction components. Supplying the wrong engine code to a breaker is the most common source of ordering the wrong part.