Parts for your 2019 Subaru Outback-Head gasket

2019 Subaru Outback head gasket — what it does and how to look after it

Based on Subaru factory service information for the FB25 2.5-litre flat-four and the EZ36 3.6-litre flat-six used in the 2019 Subaru Outback, as well as genuine parts catalogues and dealer technical documentation, this model absolutely uses a cylinder head gasket. It’s a multi-layer steel (MLS) gasket that sits between the aluminium cylinder head and the engine block.

The head gasket’s job is simple but critical: it seals combustion pressure while keeping engine oil and coolant in their own passages. On the 2019 Outback’s boxer engines, the MLS design copes well with heat cycles and the wide cylinder head clamping area. When everything’s healthy, owners get clean running, stable coolant temps, and no mixing of fluids.

Head gaskets aren’t a routine replacement item on this vehicle