Second Hand Vauxhall Cavalier AC Compressor

The Cavalier ran across two main UK generations — the Mk2 (1981–1988) and the Mk3 (1988–1995), with a facelift on the Mk3 around 1992 — and an AC compressor is fundamentally engine-driven, so the engine code on your V5 is the most important detail to match, not the model year alone. A compressor from within the same generation and sharing your engine code is a much safer starting point than simply matching years, but whether a unit crosses the 1988 or 1992 boundary and still fits should be confirmed with the breaker against your registration. Never assume a year-to-year swap works without checking the engine code first.

Yes, fuel type matters here — a diesel and a petrol Cavalier use different engines and the compressor mounting, drive arrangement, and the unit itself will differ accordingly. Always tell the breaker both your fuel type and your engine code (found on the V5 or via a VIN check) to make sure you're quoted a compatible part. Mixing fuel types is one of the most common causes of an AC compressor not fitting.

The AC compressor is driven off the engine rather than the gearbox, so manual versus automatic does not directly determine which compressor fits. That said, your engine code is still the key detail because it governs the belt drive and mounting arrangement; supply that to the breaker alongside your fuel type for the most accurate match. Gearbox type is worth mentioning to the breaker for full context but is unlikely to be the deciding factor here.

For a mechanical part like an AC compressor, trim level does not determine fitment — what matters is the engine code, fuel type, and year within the generation, all of which can vary independently of trim badges like GL, GLS, SRi, or CD. Two Cavaliers wearing different trim badges but sharing the same engine code are likely to use the same compressor. Bear in mind that higher-spec or sportier trims may have had AC fitted as standard while base trims had it as an option, so confirm the donor car actually had AC installed before buying.

Both years fall within the Mk3 generation (1988–1995), but 1992 marks the facelift point, so a 1994 unit and a pre-facelift 1992 unit could potentially differ in ancillary mounting details even if the engine code looks the same. If your engine codes match and both cars are post-1992 facelift, the chances of compatibility are stronger, but whether it crosses cleanly should be confirmed with the breaker against your specific registration before you commit. Supplying your engine code from the V5 is the most reliable way to get an accurate answer.

The single most useful thing you can give a breaker is the engine code from your V5, because AC compressors follow the engine rather than the badge or body style. Alongside that, provide your fuel type, the year of your car, and whether it is a Mk2 (1981–1988) or Mk3 (1988–1995, facelifted 1992) so the breaker can source from the right generation. Your registration number is also helpful as it lets the breaker run a check and verify details that might not be obvious from the V5 alone.