Nissan Micra Catalytic Converter Replacement Parts

Yes, all petrol-engined Nissan Micras are fitted with a catalytic converter as standard — it is a core part of the exhaust emissions system on every petrol variant sold in the UK. The Micra has been sold exclusively with petrol engines in the UK across all generations, so every model will have one. There is no diesel Micra sold in the UK, so there is no diesel-specific DPF to consider on this model.

These are two entirely different generations with different engines, exhaust layouts, and emissions standards, so a K11 cat will not fit a K12 as a direct swap. The K11 predates many of the stricter Euro emissions rules that shaped the K12's exhaust system design. Always source a cat matched to the correct generation and engine code for your vehicle.

Yes, engine code is one of the most important factors — different engines have different exhaust configurations, flange sizes, and emissions calibrations, meaning a cat from the wrong engine will not fit correctly even within the same generation. For example, the K12 Micra was available with more than one petrol engine variant, and the cat is matched to that specific unit. Always tell the breaker your engine code, which you can find on your V5C or by checking against your registration.

Trim level does not affect catalytic converter fitment — whether your K13 or K14 Micra is an Acenta, Visia, Tekna, or N-Sport, the cat is determined by the engine and emissions specification, not the trim. You may find cosmetic differences in the surrounding underbody area depending on what else is fitted, but the cat itself follows the engine. Confirm the engine code with your breaker rather than worrying about trim.

The K13 (2010–2017) and K14 (2017–present) are different generations built on different platforms with different engines, so fitment across this boundary is very unlikely. The K14 introduced a new engine family and was designed to meet more recent emissions standards, meaning the exhaust systems are not the same. Confirm against your specific registration and engine code with the breaker before purchasing.

The catalytic converter must match your vehicle's engine code and emissions era — a cat from the wrong generation or engine may not control emissions to the required standard and could cause your car to fail the emissions test at MOT. Because interchange specifics between different years and engine variants are strongly breaker territory, you should give the breaker your full registration and engine code and ask them to confirm the part matches your exact specification. A visually similar cat from the wrong emissions era can look identical but perform differently, so do not rely on appearance alone.