Cheap Mercedes-Benz G-Class Cylinder Head

The W463 generation ran from 1989 onwards, with a significant facelift and refresh in 2018 introducing the W463A platform, which brought substantial structural and mechanical changes including revised engine configurations. A cylinder head from a pre-2018 W463 is very unlikely to suit a post-2018 W463A even if the badge looks the same, so you must confirm cross-generation compatibility with the breaker against your exact registration and engine code. The engine code stamped on your block and listed on your V5 is the detail that matters most here, not the model year alone.

Yes, significantly — the G350d uses a diesel engine and the G500 uses a petrol V8, so the cylinder heads are entirely different components and are not interchangeable under any circumstances. Fuel type is one of the most fundamental fitment factors for a cylinder head, so always confirm you are quoting the correct engine code with the breaker rather than just the model name. Supply your engine code from the V5 or a VIN check to ensure you receive the right unit.

Trim level does not affect cylinder head fitment — what matters is the engine code, and both an AMG Line and a standard G350d share the same engine, so the cylinder head requirement is identical. You may find cosmetic differences on a stripped engine from an AMG Line car, such as different engine covers, but the head itself is the same mechanical component. Confirm the engine code matches yours when speaking to the breaker, and ignore the trim designation entirely for this part.

The G63 AMG uses a high-output version of the M177 twin-turbocharged V8 petrol engine, which may differ internally from any naturally aspirated or lower-output V8 used in the standard G-Class range, so fitment is not straightforward even if displacement looks the same on paper. Engine codes are the only reliable way to establish whether the heads are the same specification, and you should confirm this directly with the breaker against your registration. Do not assume AMG and non-AMG units share the same cylinder head without that code-level verification.

Both 2012 and 2015 fall within the pre-facelift W463 generation, so there is a reasonable chance the engine codes match if the displacement and variant are the same, but ancillary mounting points and minor production changes within that window mean you should not assume fitment without checking. Give the breaker your engine code — found on the V5 or via a VIN check — and they can verify the part against the donor vehicle's code rather than relying on year alone. Year is a useful starting point but the engine code is what actually determines compatibility for a cylinder head.

Gearbox type does not directly affect the cylinder head itself, but it can indicate which engine variant is fitted, since certain engine and gearbox combinations are paired from the factory on the G-Class. The cylinder head is determined by the engine code alone, so once you have confirmed that code the gearbox becomes irrelevant for this particular part. Tell the breaker your engine code and let that drive the search rather than mentioning the gearbox, unless they ask for it to help narrow down the engine variant.