Nissan

Nissan 1988 to 2024: the same 1.5 dCi or 2.3 dCi can conceal several mutually incompatible engine codes

On a Qashqai or X-Trail fitted with the 1.5 dCi, the engine code varies between K9K282, K9K430 and K9K636 depending on the year and cylinder-head revision — three variants that share neither the block nor the associated gearbox. The same applies to the NV400 and Primastar vans in 2.3 dCi: the codes M9T670, M9T700, M9T702, M9T870, M9T890 and M9T898 coexist across model years that are sometimes very close together. Mixing up two variants when ordering will invariably result in a mechanical incompatibility. The engine code stamped on the bottom of the block — not simply the engine capacity — is the only reliable reference for any vehicle in the catalogue.

Parts broken down by family and model

The Nissan range covers three families: gearboxes, engines and — less commonly — transfer cases, represented in particular on the Patrol and Pathfinder. Gearboxes and engines account for roughly equal volumes, reflecting the wide variety of faults encountered across the range. The Qashqai has the largest number of references, followed by the NV400, Primastar and X-Trail. Diesel engines dominate by a considerable margin — 1.5 dCi, 2.3 dCi, 2.0 dCi, 2.5 dCi, 1.6 dCi — but petrol units are also available: 1.2 DIG-T (HR12DDT, HRA2DDT, HRA2), 1.6 Turbo (MR16DDT) and 1.0, covering the Juke, Note and Micra among others.

Key points by segment

On SUVs and crossovers (Qashqai, X-Trail, Juke), the Quickshift automated manual gearbox is sold without its actuator; only the mechanical assembly is supplied. On the heavier Cabstar and NV400 vans, the 2.8 dCi (YD25DDTI) and 3.0 dCi (ZD30DDTi) require the full engine code to be verified before ordering, as several block variants were used across the same chassis generation. For the Navara and Pathfinder in 2.5 dCi (YD25DDTI or YD25DDTi depending on the model year), the difference in spelling reflects internal revisions to the block. The two available sales methods — exchange and customer unit rebuild — apply differently depending on the reference; the product page specifies which option is offered for each part.