Parts for your 2020 Lexus Is-Oil pump

2020 Lexus IS oil pump — what it does, why it matters, and how to look after it

The 2020 Lexus IS absolutely uses an engine oil pump. Lexus/Toyota technical sources, including the Lexus Repair Manual and New Car Features (NCF) documents available via Toyota Technical Information System (TIS), detail a chain-driven trochoid oil pump as part of the lubrication system on both the 2.0‑litre turbo 8AR‑FTS and the 3.5‑litre V6 2GR‑FKS engines. The Toyota/Lexus Electronic Parts Catalogue (EPC) also lists an Oil Pump Assembly for these engines for the 2020 IS range, confirming it’s a fitted and serviceable component.

In the 2020 Lexus IS, the oil pump’s job is to circulate pressurised engine oil through galleries to bearings, camshafts, VVT‑i actuators and the turbocharger (on 8AR‑FTS). It builds oil pressure from the sump and keeps a consistent film between moving parts, which cuts wear, carries away heat, and traps contaminants for the filter to catch. Without a healthy pump, oil pressure drops and the engine can suffer damage very quickly.

There’s no scheduled replacement interval for the oil pump