Used Nissan Navara Alternator

The Navara sold in the UK spans two clear generations: the D22 (roughly 1998–2005) and the D40 (2005–2015), which received a facelift around 2010. Alternator fitment is driven by engine code first — for example, the 2.5 dCi diesel carries the YD25DDTi code across much of the D40 range, and parts from within that engine family are often interchangeable, but you should always confirm against your specific registration with the breaker rather than assuming year alone is enough.

The D22 and D40 are separate generations with different engine families and ancillary layouts, so a straight swap is unlikely. The D40 2.5 dCi (YD25DDTi) is a completely different unit to the D22's 2.5 TD engine, meaning the alternators are not the same part. Give the breaker your engine code from the V5 or a VIN check — that is the quickest way to confirm whether a listed unit will match your vehicle.

The D40 facelift arrived around 2010, and while many engine internals carried over, ancillary mounting points and bracket arrangements can change mid-production without a model-year flag. The engine code (YD25DDTi for the 2.5 dCi) is your best starting point, but whether a pre-2010 alternator physically bolts straight onto a post-2010 unit is something you should confirm with the breaker against your registration, as mounting details can vary.

Trim levels such as Tekna, Aventura, and SE do not affect alternator fitment — the alternator is determined by the engine, not the badge or specification level. Body style (single cab, king cab, double cab) equally makes no difference to which alternator is fitted. What matters is the engine code, fuel type, and gearbox type, so match on those rather than worrying about which trim the donor vehicle came from.

In most cases the alternator itself is the same regardless of manual or automatic gearbox, as it is driven by the engine rather than the transmission. However, on some applications the power demand or ancillary drive configuration can differ, so it is worth mentioning your gearbox type when speaking to the breaker, especially on the D40, just to rule out any variant-specific differences. Always give the breaker your full engine code alongside gearbox type for the safest match.

On many modern vehicles, components like alternators can be managed by the ECU and may require coding or configuration after fitting. Whether this applies to your specific Navara and whether a second-hand unit will communicate correctly with your vehicle's ECU are things you need to confirm directly with the breaker or your fitting garage — this is not something we can state as a blanket rule. A good breaker will be able to advise based on the exact donor and recipient registrations.