Parts for your 2020 Lexus Is-Manifold gasket

2020 Lexus IS manifold-gasket — purpose, fitment and servicing advice

Yes, a manifold-gasket is absolutely relevant to the 2020 Lexus IS. Lexus/Toyota technical sources confirm it: the Lexus Repair Manual (TIS) for the 2020 IS (XE30 series) includes procedures for Intake Manifold and Exhaust Manifold removal/installation for the IS 300 (8AR‑FTS) and IS 350 (2GR‑FKS), each specifying new gaskets on reassembly. The Toyota/Lexus Electronic Parts Catalogue (EPC) also lists “Gasket, Intake Manifold” and “Gasket, Exhaust Manifold” for these variants. That means the car uses manifold gaskets, and they’re a standard service item whenever those manifolds are disturbed.

On this Lexus, manifold gaskets seal the mating faces between the cylinder head and the intake and exhaust manifolds. The intake side needs an airtight seal so the engine’s air and fuel metering stay spot on