Engine Oil Pump Assembly for Nissan Trucks & SUVs ️

Why this part is needed

The oil pump is the heart of the lubrication system. It feeds pressurized oil to crankshaft bearings, camshafts, timing chains, and pistons. Fresh, steady pressure reduces friction, removes heat, and keeps your engine smooth and long‑lived. Replacing a worn pump restores correct oil flow and protects your investment .

How it works

A rotor/gear set, driven by the crankshaft, draws oil through the pickup screen and pushes it into the main galleries. An internal relief valve controls maximum PSI at idle and high RPM, so seals stay safe while parts get the flow they need. Tight machining clearances keep pressure stable in hot and cold conditions ⚙️.

What happens if it fails

Low oil pressure light, flickering gauge, tapping on cold start, timing chain rattle, lifter noise, and bearing knock. Metal glitter in oil may appear. Driving on can spin bearings or seize the engine. If symptoms show, stop, confirm level, inspect the pickup, and replace the pump ❗

Install tips

Prime the pump with clean oil, fit new gasket/O‑ring, torque to spec, inspect pickup tube and seal, align the drive, and use a new filter with the correct viscosity. After start, verify pressure with a mechanical gauge ✅

Quality & fitment

Precision‑machined body, hardened internals, accurate relief valve, OEM‑style direct bolt‑on fit for reliable pressure and quiet operation.

Compatibility

• Frontier
• Pathfinder
• Navara
• Xterra
• Nv
• Nv3500
• Patrol