Nissan NV400 Catalytic Converter Replacement Parts

The Nissan NV400 is powered exclusively by diesel engines, and diesel vehicles use a diesel oxidation catalyst (DOC) as part of their exhaust aftertreatment system rather than a traditional petrol-style catalytic converter. Depending on the emissions standard, the NV400 also uses a diesel particulate filter (DPF), and later Euro 6 variants add a selective catalytic reduction (SCR) system using AdBlue. If you are searching for a catalytic converter, you are most likely looking for the diesel oxidation catalyst, the DPF, or the SCR unit — confirm which component you actually need with a breaker before ordering.

The NV400 moved from Euro 5 to Euro 6 emissions compliance around 2015-2016, and the exhaust aftertreatment systems between these two eras are substantially different — Euro 6 models added SCR/AdBlue technology that Euro 5 vehicles did not have. Fitting a part from the wrong emissions era risks an MOT failure or incorrect operation of the system. Confirm the exact emissions standard on your vehicle against your registration before asking a breaker to source a part, and make sure the unit they quote matches that standard.

Trim level does not affect fitment of the exhaust aftertreatment system on the NV400 — what matters is the engine code and the emissions standard (Euro 5 or Euro 6), not whether the van is badged SE, Tekna, or Sport. A breaker may supply a unit from a different trim entirely and it will be equally suitable provided the engine and emissions era match. Do be aware that brackets or heat shields can vary slightly between vehicles, so confirm the full specification including engine code with the breaker against your registration.

Yes — the NV400 was offered with 2.3-litre dCi diesel engines in different power outputs (ranging from around 100 hp to 170 hp), and the exhaust system components including the diesel oxidation catalyst and DPF are matched to the specific engine variant and its outputs. Using a part from a significantly different engine variant may result in incorrect fitment or sensor incompatibilities. Always supply the engine code from your V5C or ask your breaker to cross-reference against your registration to ensure the correct unit is matched.

The Nissan NV400, Renault Master (from 2010 onwards), and Vauxhall Movano (from 2010 onwards) share the same platform and engines, so exhaust aftertreatment components can in principle be interchangeable between these badge-engineered siblings. However, whether a specific DOC, DPF, or SCR unit from one brand directly swaps to another depends on the exact engine code, emissions standard, and build date — this is strong confirm-with-breaker territory. Tell the breaker your registration and ask them to verify compatibility rather than assuming a part from a Renault Master or Movano will automatically fit.

A used diesel oxidation catalyst or DPF can restore correct emissions performance if the original unit is genuinely blocked or failed, but the root cause of the MOT failure needs to be diagnosed first — a fault in the EGR, sensors, or engine management can cause an emissions failure even with a functional aftertreatment system. Fitting a used part without addressing any underlying faults risks a repeat failure. Ask a breaker to supply a unit matched to your exact engine code and emissions standard, and have the system properly reset and tested after fitting.