Parts for your 2017 Nissan Navara-Fuel pump

2017 Nissan Navara fuel pump – what’s actually fitted?

Based on Nissan’s own technical literature for the D23/NP300 platform, the 2017 Nissan Navara sold in Australia and New Zealand with the 2.3‑litre common‑rail turbo‑diesel (YS23DDT/DDTT) does not use an electric in‑tank fuel pump. Instead, the diesel system relies on an engine‑mounted high‑pressure supply pump that draws fuel from the tank through the fuel filter assembly, which features a hand primer for bleeding. This layout is described in the Nissan Navara D23 Service Manual (Diesel), Fuel System (FL) section and supported by the Owner’s Manual procedures that require manual priming after a filter change—both indicators there’s no electric lift pump in the tank.

Why omit the in‑tank pump on the diesel? Common‑rail diesel designs like the Navara’s are engineered for the high‑pressure pump to handle both suction and pressurisation, with a Suction Control Valve regulating inlet flow. This reduces electrical complexity in the tank, suits off‑road use, and keeps servicing straightforward: if air enters the system during a filter swap, the hand primer is used to purge it. The service manual’s exploded views show the fuel path: tank → lines → filter with primer/water separator → engine‑mounted high‑pressure pump → rail and injectors—no electric module in the tank is listed.

There is one important exception. In some markets the 2017 Navara was available with a 2.5‑litre petrol (QR25DE). Those petrol variants do use an electric in‑tank fuel pump module integrated with the level sender, controlled via the EFI relay/fuse. If a vehicle is a petrol import or grey‑market example, the in‑tank pump applies