Parts for your 2014 Nissan Navara-Oil pump

2014 Nissan Navara oil pump — what it does, why it matters, and when to sort it

Yes — the 2014 Nissan Navara is fitted with an engine oil pump. Nissan’s own technical publications confirm it: the Navara D40 Service Manual (LC: Lubrication System, 2010–2014) details a crank-driven trochoid/gerotor pump mounted in the front timing cover on YD25DDTi (2.5 diesel), QR25DE (2.5 petrol) and VQ40DE (4.0 petrol) engines. The Nissan FAST parts catalogue and dealer microfiche list the complete pump assembly, pickup and relief components for these engines, and independent data services (e.g., Autodata and Haynes) describe identical lubrication layouts.

On a 2014 Navara, the oil pump is the heart of the lubrication system. It draws oil from the sump through a screened pickup, pressurises it, and feeds crankshaft and cam bearings, turbocharger bearings (on diesels), timing chain tensioners and the valvetrain. Being driven off the crank, it scales pressure with engine speed, while an internal relief valve limits maximum pressure. Without a healthy pump, bearings starve, chains rattle and turbos can fail in short order.

There’s no routine replacement interval for the pump itself — it’s designed to last the life of the engine — but good servicing protects it. Stick to the correct oil spec and change intervals for Aussie/NZ conditions, use quality filters, and keep an eye on any oil pressure warning light or unusual noises. If the sump’s ever off, it’s smart to clean the pickup strainer and replace the pickup O-ring, a hardened O-ring is a known cause of pressure loss on high‑kilometre engines.

• Watch for these signs: oil pressure lamp flicker at hot idle, lifter or chain rattle on start-up, turbo whine, or a light knock that quietens with revs. Stop and investigate — continuing to drive can turn a cheap fix into an engine rebuild.
• If replacement is needed, it’s a bigger job: sump and front cover removal, timing components locked or removed, and careful RTV resealing. Always prime the new pump with clean oil, renew the pickup O-ring and front seal, and follow torque specs from the service manual.
• Quality matters. Choose a genuine or reputable aftermarket pump, and verify bearing clearances and oil pressure with a mechanical gauge after refit.

For Navaras doing heavy towing or lots of short trips, shorter oil change intervals (time and kilometres) are cheap insurance for the pump and the rest of the engine.

Does a 2014 Nissan Navara actually have an oil pump?
It does. Nissan’s D40 Service Manual and parts catalogues list a crank-driven trochoid/gerotor pump for the YD25DDTi, QR25DE and VQ40DE engines used in 2014 models. It’s integral to the front cover and supplies pressurised oil to all critical components.

When should the oil pump be replaced on a 2014 Navara?
It isn’t a scheduled replacement item. Replace it if confirmed low oil pressure persists after checking oil grade, filter, pickup strainer and O-ring, or during an engine rebuild. Many owners renew the pump and pickup seals preventatively on high‑kilometre engines when the sump or timing cover is already off.

What are the warning signs of a weak oil pump or low oil pressure?
Hot-idle oil light flicker, start-up chain or lifter rattle, turbo whistle/grind on diesels, and bearing knock are red flags. If the oil light stays on, switch off immediately and test with a mechanical gauge, further running can rapidly damage bearings and the turbo.