Second Hand Vauxhall Cavalier Cylinder Head

The Cavalier ran through two main UK generations — the Mk2 (1981–1988) and the Mk3 (1988–1995) — and the cylinder heads are not generally interchangeable across that boundary because the engines changed significantly between them. Within each generation, fitment is driven by the engine code rather than the model year, so a head from a 1989 Mk3 could suit a 1993 Mk3 if the engine codes match. Always confirm the engine code from your V5 or a VIN check before ordering, and verify the specific years with the breaker against your registration.

Trim level makes no difference to cylinder head fitment on the Cavalier — the L, GL, GLS, CD and similar grades used the same engines, so a head from any of those trims can suit yours provided the engine codes match. You may find minor ancillary differences such as brackets or sensors depending on exact specification, but the head itself is determined by the engine, not the badge. Match on engine code first, then confirm any ancillary details with the breaker against your registration.

Yes, fuel type is important — petrol and diesel cylinder heads are entirely different components and will not interchange. Within petrol engines, different capacities and fuel delivery systems (carburettor or injection) also produced different heads, which is why the engine code is the single most reliable piece of information you can give a breaker. Confirm your engine code from the V5 or a VIN check before requesting quotes.

1988 sits right on the boundary between the Mk2 (1981–1988) and Mk3 (1988–1995) generations, and Vauxhall transitioned between them during that year, so your car could be either generation depending on when it was built. Whether a head from a 1989 Mk3 suits a late Mk2 built in the same year is not something that can be answered safely without checking the engine codes on both vehicles. Supply your engine code and registration to the breaker and ask them to verify compatibility directly.

The gearbox type does not directly change the cylinder head specification, but automatic variants were sometimes paired with specific engine tunes or ancillary configurations, so it is worth mentioning to the breaker. The engine code remains the primary matching point regardless of gearbox. Confirm the full engine code with the breaker against your registration to make sure all ancillary fittings align.

On later fuel-injected Cavaliers in particular, there can be considerations around sensors and ECU compatibility depending on the exact specification of the donor head. Whether any coding or pairing is needed for your specific vehicle is something you should confirm with the breaker against your registration, as this can vary mid-production. A breaker experienced with Cavaliers will be best placed to advise once they can see both your registration and the donor vehicle details.