Second Hand Nissan Terrano Catalytic Converter

Yes, the Nissan Terrano was offered with petrol engine variants, and those petrol engines do carry a catalytic converter as part of the exhaust system. The diesel variants used in the UK market, however, use a diesel oxidation catalyst or DPF-based system rather than a traditional three-way catalytic converter, so the exact emissions hardware depends on which engine your vehicle has. Check your V5C or registration plate lookup to confirm your engine code and fuel type before searching for parts.

The Nissan Terrano in the UK ran across two main generations, the R20 (1993–2006) and the WD21 preceding it, and emissions regulations changed significantly across that span, meaning exhaust and catalyst hardware was updated to meet different standards. A catalytic converter from the wrong generation or emissions era may physically look similar but will not meet the same standards and could cause your vehicle to fail its MOT. Name the generation boundary to your breaker and ask them to confirm compatibility against your specific registration before purchasing.

Trim level alone — whether your Terrano is an SE, SGX, Sport, or similar — does not determine which catalytic converter you need. What matters is your engine code, fuel type, and the emissions specification the vehicle was built to. Tell the breaker your engine code and registration rather than your trim name, as two Terranos in different trims but with the same engine will need the same catalyst.

Diesel Terranos use a diesel oxidation catalyst as part of their exhaust aftertreatment rather than a conventional three-way catalytic converter found on petrol engines, and later diesel variants may also have a diesel particulate filter depending on the emissions era they were built to. The exact configuration varies by engine code and model year, so it is important not to assume the two are interchangeable. Confirm with the breaker exactly which emissions components your engine requires by providing your registration and engine code.

No — the 2.4 petrol and the 2.7 turbodiesel are completely different engines with different exhaust aftertreatment requirements, and the catalyst designed for the petrol engine will not be correct for the diesel. The diesel uses a diesel oxidation catalyst rather than a three-way catalytic converter, so the parts are not interchangeable even if they might appear superficially similar in shape. Always match the replacement part to your specific engine code and fuel type.

For an MOT pass, the catalytic converter must match the emissions standard the vehicle was originally built to, which is determined by its engine code and registration year rather than just the model name. A catalyst from a different emissions era — even from another Terrano — may not perform to the required standard and could result of a failure on emissions grounds. Give the breaker your full registration and engine code and ask them to confirm the part meets the correct emissions specification for your vehicle before buying.