Parts for your 2010 Subaru Exiga-Head gasket

2010 Subaru Exiga head gasket — what it does and when to sort it

Based on Subaru’s 2010 Exiga (YA series) workshop manual engine section and the Subaru OEM parts catalogue (FAST) for the EJ-series flat-four used in the Exiga, the vehicle is fitted with cylinder head gaskets — one per cylinder bank on the boxer engine. So a head gasket is absolutely relevant to a 2010 Subaru Exiga.

The head gasket on a 2010 Subaru Exiga sits between the aluminium cylinder head and the engine block, sealing in three critical areas at once: combustion pressure, coolant passages and engine oil galleries. On the Exiga’s EJ-series boxer there are two of them — left and right — keeping everything separate and under control so the engine runs sweet, holds compression and doesn’t mix oil and coolant. Subaru moved to quality multi-layer steel (MLS) gaskets on later EJ engines, which handle heat cycles and boost (on turbo variants) much better than old composite styles.

It’s not a routine “replace by date” item