Parts for your 2020 Subaru Outback-Head gasket

2020 Subaru Outback head gasket

Yes, the 2020 Subaru Outback does use a head gasket. Technical references that spell this out include the Subaru Service Manual for the 2020 Outback (Engine/Engine Mechanical sections for the FB25 2.5‑litre and FA24 2.4‑litre turbo), Subaru’s Technical Information System (STIS), and the Subaru Genuine Parts Catalogue, all of which list and detail removal/installation procedures for multi‑layer steel (MLS) cylinder head gaskets. Because both engines are aluminium, horizontally opposed (boxer) designs with separate cylinder heads and blocks, a head gasket is essential to seal combustion, oil, and coolant passages.

On the 2020 Outback, the head gasket’s job is to keep the combustion chambers tightly sealed while keeping coolant and engine oil in their own lanes. The MLS gasket is clamped between the alloy head and block, maintaining compression and stopping fluids from mixing, even as temperatures and loads swing on a long Kiwi roadie or Aussie summer commute. It’s a quiet achiever—if it’s doing its thing, the Outback runs smooth, cool, and efficient.

There’s no scheduled replacement interval for the head gasket on this model