Parts for your 1998 Nissan Navara-Oil pump

1998 Nissan Navara oil-pump: purpose, upkeep, and when to replace

Yes, the 1998 Nissan Navara (D22) uses an engine oil-pump. Technical references including the Nissan D22 Factory Service Manual (Lubrication section), the KA24E and TD27 engine workshop manuals, and Nissan FAST parts catalogues list a crank-driven oil-pump for both the 2.4-litre KA24E petrol and the TD27 2.7-litre diesel. There’s no variant of the ’98 Navara without an oil-pump, as it’s fundamental to the engine’s pressurised lubrication system.

The oil-pump on a 1998 Navara does the heavy lifting for engine longevity. It drags oil through the pickup strainer in the sump and sends it under pressure to crankshaft bearings, cam gear, timing components, and the top end, forming that thin protective film that stops metal-on-metal grief. It also helps carry heat away and flushes tiny contaminants back to the filter. A pressure relief valve in the pump housing keeps things in check at higher revs. On KA24E petrol engines, the gerotor-style pump is built into the front cover and driven by the crank