BMW 8 Series Camshaft Replacement Parts

Yes, every BMW 8 Series engine — whether petrol or diesel, naturally aspirated or turbocharged — uses a conventional piston engine with camshafts, so the part does exist on this model. Most 8 Series engines are DOHC (dual overhead camshaft), meaning there are separate intake and exhaust camshafts per cylinder bank, so you need to be clear which camshaft you need when requesting quotes. Always confirm inlet or exhaust, and which bank (NS or OS on a V-configuration engine), with the breaker before ordering.

The current BMW 8 Series (G14 convertible, G15 coupé, G16 Gran Coupé) launched in 2018 and has not had a generation change since, but BMW has made running production changes to engine specifications across the range. Fitment is governed almost entirely by engine code rather than the model year, so two cars from different years with the same engine code are far more likely to be compatible than two same-year cars with different engines. Name the generation (G15 etc.) as a starting point, but give the breaker your exact engine code — found on your V5 or via a VIN check — so they can confirm whether the camshaft profile and bearing dimensions match.

Yes, petrol and diesel camshafts are entirely different parts and are not interchangeable — the cam profiles, lift, and duration are engineered specifically for each fuel type. The 8 Series is available with petrol engines (including the M850i with a B58 straight-six and M8 with an S63 V8) and diesel engines (840d with a B57 straight-six), and each has its own camshaft specification. Always confirm your fuel type and engine code with the breaker; supplying your registration for a VIN check is the safest way to ensure the right part is sourced.

Yes, these are fundamentally different engines and the camshafts are not interchangeable between them — the M850i uses a turbocharged B58 petrol straight-six, the M8 uses a high-output S63 petrol V8, and the 840d uses a B57 diesel straight-six, each with distinct camshaft geometry and fitment. Trim level differences within the same engine variant (for example standard versus M Sport) do not affect camshaft fitment at all, as trim relates to cosmetic and chassis options rather than internal engine components. Give the breaker your engine code rather than just the badge name to avoid any confusion.

For the camshaft itself, gearbox type has no bearing on fitment — the camshaft lives entirely within the engine and is unaffected by what transmission is bolted to it. The engine code and fuel type are the details that matter here, not whether you have the eight-speed automatic or any other transmission variant. Focus your conversation with the breaker on engine code, whether you need the inlet or exhaust camshaft, and on which cylinder bank if it is a V-engine.

A camshaft is a purely mechanical component and does not hold any electronic data, so unlike some BMW parts it does not need to be coded or paired to the vehicle's ECU. However, BMW VANOS variable valve timing systems interact with the camshaft via sensors and actuators, and any ancillary components — such as cam sensors or VANOS solenoids — may or may not be included with a used camshaft from a breaker, so confirm exactly what is supplied before agreeing a price. If your car has VANOS, confirm with the breaker that the replacement camshaft's cam sensor ring and sprocket specifications match your application against your exact registration.