Parts for your 2003 Toyota Hilux-Oil pump

2003 Toyota HiLux oil pump — what it does and when to service it

Yes, the 2003 Toyota HiLux uses an engine oil pump. Technical sources including Toyota repair manuals and the Toyota Electronic Parts Catalogue list oil pump assemblies for the 2003 model’s common engines — for example, 3RZ‑FE 2.7 petrol (oil pump assembly P/N 15100‑75020), 5L 3.0 diesel (P/N 15100‑54120), and 1KZ‑TE 3.0 turbodiesel (P/N 15100‑67020). These references describe a crankshaft-driven gear or trochoid-type pump mounted at the front of the block, supplying pressurised oil to bearings, cams and galleries (see Toyota HiLux Repair Manuals for 1997–2005 series and Toyota EPC