Nissan Pathfinder Oxygen Sensor Replacement Parts

Yes, petrol-engined Nissan Pathfinders do have oxygen sensors — typically upstream and downstream of the catalytic converter to manage fuelling and monitor converter efficiency. However, diesel Pathfinders (the R51 generation sold in the UK used the 2.5 dCi diesel engine) do not use a traditional lambda/oxygen sensor in the same way; diesel engines rely on different sensors such as NOx sensors or exhaust temperature sensors instead. If your Pathfinder is a 2.5 dCi, you may actually be looking for one of those alternatives — confirm what your car needs with the breaker against your registration number.

The Nissan Pathfinder sold in the UK in meaningful numbers was the R51 generation (2005–2014, with a facelift around 2010), and the vast majority of UK R51s were fitted with the 2.5 dCi diesel engine, meaning oxygen sensors were rarely fitted here. The earlier R50 generation (1996–2004) included petrol variants and those do carry oxygen sensors, so generation matters significantly for this part. Always quote your exact registration to the breaker so they can confirm which engine and sensor setup applies to your specific vehicle.

Within the R50 generation the engine code and exact model year are the critical factors, as Nissan made running changes to engine management during the production run that can affect sensor specification and connector type. A sensor from a different model year may look visually similar but could have a different number of wires, a different thread pitch, or an incompatible connector. Name both vehicles' registrations to the breaker and ask them to cross-reference the part numbers before purchasing.

No, trim level does not affect oxygen sensor fitment on the Pathfinder — the sensor is determined by the engine code and emissions specification, not whether your car has leather seats or a higher-spec interior. An SE and an SVE with the same engine and from the same emissions era will use the same sensor. That said, always confirm the engine code and year with the breaker, as those factors do matter.

The R51 Pathfinder was facelifted around 2010, and while the 2.5 dCi diesel remained the dominant UK engine across both phases, any changes to engine management mapping or exhaust configuration around that boundary could affect sensor compatibility. Because the vast majority of UK R51s are diesel and therefore do not use a conventional oxygen sensor, this question may point to a different underlying issue — confirm exactly which sensor your car requires with the breaker against both registrations before buying.

Yes, lambda sensor and oxygen sensor refer to the same component — the terms are used interchangeably in the UK motor trade, and breakers may list them under either name. On petrol Pathfinders there are typically both an upstream (pre-cat) and a downstream (post-cat) lambda sensor, and these are not interchangeable with each other even on the same car. Make sure you tell the breaker which position you need and supply your registration so they can match the correct specification.