Nissan NV300 Catalytic Converter Replacement Parts

Yes, the Nissan NV300 is fitted with a catalytic converter on its diesel engines, where it forms part of the exhaust aftertreatment system alongside a diesel particulate filter (DPF). All NV300s sold in the UK use diesel power, so every variant of the van has one. The cat and DPF are typically close-coupled or combined into an assembly, so when sourcing a replacement it is important to confirm with the breaker exactly which components are included in the unit they are selling.

The Nissan NV300 launched in the UK in 2016 as a rebadged Renault Trafic third generation, and while the van has continued broadly in the same form, emissions legislation moved from Euro 6 standards at launch through subsequent Euro 6 sub-stages over the years. Because catalytic converter and DPF specifications are tied to the emissions certification of the specific engine build, a unit from a different emissions era may not be a direct swap and could cause an MOT failure. Always confirm with the breaker that the part matches your exact registration and engine code rather than relying on year alone.

No, trim level does not affect catalytic converter fitment on the NV300 — whether your van is a base-spec workhorse or a higher-grade Sport or Tekna variant, the exhaust aftertreatment components are determined by the engine code and emissions certification, not the trim. You should focus on matching the engine code and Euro emissions standard rather than worrying about trim differences. Confirm the engine code from your V5C or via the breaker before purchasing.

Yes, engine specification matters significantly. The NV300 has been offered with 1.6-litre dCi diesel engines in different power outputs, and the exhaust and aftertreatment system is matched to the specific engine variant and its emissions calibration. A catalytic converter or cat-DPF assembly from the wrong engine variant may not physically fit or may not meet the emissions requirements for your van. Give the breaker your full engine code — found on your V5C or on the engine itself — to make sure the unit is correct.

On the NV300 the catalytic converter and diesel particulate filter are often integrated into a combined assembly rather than being entirely separate components, though this can vary depending on the specific engine build and year. Whether you can source the cat alone or need the full cat-DPF unit is something you will need to clarify with the breaker, who can tell you how the part comes off the donor vehicle. Make sure to confirm this before ordering so you are not left with an incompatible or incomplete assembly.

Engine code is one of the most important matching criteria for catalytic converters and DPF assemblies, and a unit from a different engine code is strong grounds for caution even if the vans look identical on the outside. Differences in engine mapping, exhaust flow requirements, and emissions certification mean a visually similar part from the wrong engine can fail to fit properly or cause ongoing emissions faults and MOT failures. Route this question directly to the breaker with your registration and engine code, and ask them to confirm the donor vehicle details before committing to a purchase.