Parts for your 2017 Toyota Mark x-Oil pump

2017 Toyota Mark X oil pump — what it does and how to look after it

Technical sources confirm the 2017 Toyota Mark X definitely uses an engine oil pump. Toyota’s Repair Manual for the GRX130 series (Engine Mechanical and Lubrication sections), the New Car Features (NCF) document for the 4GR‑FSE/2GR‑FSE V6, and the Toyota Electronic Parts Catalogue all show a crankshaft‑driven trochoid (gerotor) oil pump integrated with the front timing chain cover, complete with a pressure relief valve and pickup to the sump.

On the Mark X’s GR‑series V6, the oil pump’s job is to pull oil from the sump, pressurise it, and feed the main galleries, bearings, timing chain, and VVT‑i cam phasers. Without steady pressure and flow, the engine would wear fast, the chain could get noisy, and variable valve timing would play up. Because the pump is driven directly off the crank, output closely tracks engine speed, and the built‑in relief valve keeps pressure in check.

In normal servicing, the oil pump isn’t a routine replacement item. What matters most is fresh, correct‑grade engine oil and quality filters at the factory interval. The GR V6 typically specifies low‑viscosity ILSAC oil (often 0W‑20