Used Nissan Primastar Door Lock Mechanism

The Primastar was built on the Renault Traffic / Vauxhall Vivaro platform and was sold in the UK roughly from 2002 to 2014, so you first need to confirm which generation yours is — the original (2002–2006) or the facelifted model (2006–2014), as body panels and door hardware differ between them. You also need to specify which door the mechanism is from: front NS (nearside, passenger side), front OS (offside, driver side), or for the sliding side door, which side and whether you have a short or long wheelbase, as these affect the mechanism design. Always give the breaker your full registration so they can cross-reference the exact part.

These two vehicles sit on opposite sides of the 2006 facelift boundary, and because the facelift involved changes to the door structure and latch assemblies, a direct swap is not guaranteed. Name that boundary to the breaker and ask them to verify whether the pre-facelift (2002–2006) and post-facelift (2006–2014) mechanisms are interchangeable for your specific door position — many breakers who deal in Trafic-platform vans will know this quickly. Do not assume they are the same part without that confirmation.

For the door lock mechanism, trim level does not affect fitment — what matters is the generation, the door position (NS or OS front door, or sliding rear door), and for the sliding door, whether your van is short or long wheelbase. The Primastar was sold in the UK in trim levels including Comfort and Sport, but these differences relate to equipment and finish rather than the lock mechanism itself, so any well-matched mechanism from the correct generation and door position should be suitable regardless of the donor vehicle's trim. Confirm the full details with the breaker against your registration to be safe.

Yes, wheelbase does matter for the sliding door mechanism on the Primastar: short wheelbase (SWB) and long wheelbase (LWB) vans can have differences in the sliding door track and associated hardware, which can affect whether the latch and lock mechanism is interchangeable. Always tell the breaker whether your van is SWB or LWB as well as which side the sliding door is on, alongside your registration number. This is one of the details breakers who specialise in Trafic-platform vans will specifically ask about.

No — NS (nearside, passenger left) and OS (offside, driver right) door lock mechanisms are handed parts and are not interchangeable, as the latch geometry and internal linkage are mirror images of one another. When sourcing from a breaker, always specify NS or OS clearly in addition to confirming the generation of your Primastar. Fitting the wrong side will mean the mechanism does not operate correctly, so this detail is essential.

The Primastar, Vivaro, and Trafic were built on the same shared platform and in many cases share door hardware, so cross-platform compatibility is a real possibility — especially within the same generation and for the same door position and side. However, there were production variations across the model years of all three vehicles, and you should confirm with the breaker that the specific part from the donor vehicle matches your Primastar's generation and door specification before purchasing. A breaker familiar with these vans will be able to cross-reference this quickly using your registration.