Parts for your 2020 Mitsubishi Outlander-Head gasket

2020 Mitsubishi Outlander head gasket — what it does, and when to sort it

Yes, the 2020 Mitsubishi Outlander uses a head gasket. Technical sources like the Mitsubishi Motors workshop manual for the 4B12 2.4L and 6B31 3.0L petrol engines, along with the Mitsubishi ASA/MMC parts catalogue, list a multi-layer steel (MLS) cylinder head gasket and specify single‑use torque‑to‑yield head bolts for head removal and installation. So it’s absolutely a relevant part on the 2020 Outlander range, including PHEV variants that run a 2.4L Atkinson-cycle petrol engine.

The head gasket’s job is to seal the mating surfaces between the cylinder head and engine block. It keeps combustion pressure where it belongs, and it prevents engine oil and coolant from mixing. On the Outlander’s alloy head/iron block setups, the MLS gasket allows for slight expansion differences while hanging onto compression and keeping fluids in their own lanes. When it’s healthy, you’ll get good performance, clean running, and stable temps.

There’s no scheduled servicing interval for a head gasket