Vauxhall Combo Catalytic Converter Replacement Parts

The Combo has been sold with both petrol and diesel engines across its generations, so the answer depends on your variant. Petrol-engined Combos do have a catalytic converter, while diesel models use a diesel oxidation catalyst (DOC) and, on later Euro 5 and Euro 6 diesels, a diesel particulate filter (DPF) rather than a traditional cat. Make sure you know your fuel type and engine code before searching, as the two systems are completely different.

The Combo C (2001–2011) and Combo D (2012–2018) are different generations built on different platforms, and the exhaust systems are not the same. Even if you find a petrol cat from the correct fuel type, the emissions standards changed across that boundary — Euro 3/4 era parts from the C generation are unlikely to be a legal or physical match for a D-generation car. Confirm the exact part against your registration and engine code with the breaker before buying.

Yes, engine code is one of the most important things to match. Different petrol engines — even within the same generation — can use different exhaust manifold and cat configurations, so a cat from the wrong engine code may not bolt up or may not pass MOT. Always give the breaker your full engine code alongside your registration number.

No — trim level does not affect the catalytic converter fitment on the Combo. Whether your van or car-derived Combo is in Entry, Expression, Exclusiv, or any other trim, what determines the cat is the engine code and the emissions era, not the specification level. You may notice cosmetic differences between donor vehicles at a breaker's yard, but those have no bearing on whether the cat itself will fit.

The Combo D ran from 2012 to 2018 and received a facelift during that period, but whether the catalytic converter interchanges across the facelift point depends on whether the engine and emissions calibration changed at the same time — and that is strong confirm-with-breaker territory. Name your registration and engine code to the breaker so they can cross-reference the exact part number rather than relying on year alone.

The Combo E, launched in 2018 and based on the PSA/Stellantis platform shared with the Citroën Berlingo and Peugeot Partner, is a completely different vehicle from earlier Combo generations and uses different engines and exhaust systems. Any cross-generation interchange between Combo D and Combo E parts — including catalytic converters — should be treated as unconfirmed, and you should verify the specific part against your registration with the breaker before purchasing.