Parts for your 2016 Nissan Pathfinder-Oil pump

2016 Nissan Pathfinder oil pump: what it does and when to replace it

Yes, the 2016 Nissan Pathfinder uses an oil pump and it’s absolutely relevant to servicing. Technical documentation confirms this: the 2016 Pathfinder (R52) Electronic Service Manual, Section LU – Lubrication System, describes a crankshaft-driven trochoid/gerotor oil pump integrated in the front timing cover on both the VQ35DE 3.5‑litre V6 and the QR25DER hybrid engine. Nissan parts catalogue diagrams for the R52 model also show the oil pump assembly and related rotors, pickup and relief valve in the lubrication system.

On this Pathfinder, the oil pump’s job is to push engine oil under pressure through galleries to lubricate crank and cam bearings, piston cooling jets (where fitted), the timing chains and guides, and to supply the cam phasing system. By keeping a stable film of oil between moving parts, it cuts wear, carries away heat and flushes microscopic debris back to the filter. Without good oil pressure, it’s only a matter of time before bearings scuff and the engine protests with noise or worse.

Day to day, the best “maintenance” for the pump is simply keeping the engine oil clean and at the correct level. Stick to the service schedule and use the specified grade (commonly 0W‑20 or 5W‑30 meeting the Nissan spec for this model and climate). A quality filter, timely changes, and avoiding sludge build-up protect the pump’s rotors and the pickup screen. If the oil pressure warning light flickers, the engine rattles at start-up, or there’s metallic glitter in the drained oil, don’t keep driving—have the pressure checked with a mechanical gauge.

• Tell-tale signs of trouble: low oil pressure light, persistent lifter/chain rattle, VVT performance faults, bearing knock, or an oil-starved look to the drained oil/filter.

Replacing the oil pump on a 2016 Pathfinder is a sizeable job because it’s housed in the front cover with the timing chains. Expect sump and front cover resealing, chain handling and correct timing setup. It’s work best left to a workshop with the right locking tools and sealants.

1. Use genuine or OE‑quality pump/rotor set, new front crank seal and O‑rings.
2. Drop and clean the pickup/strainer