This Torque Solution billet thermostat housing is a high-flow replacement for Subaru EJ-series engines. Machined as a billet unit, it provides a direct-fit thermostat location while promoting improved coolant flow compared with older cast housings. The housing is intended for engine cooling system service or upgrade where a durable, serviceable thermostat connection is required for EJ engine applications.
Torque Solution Subaru EJ Engines High Flow Billet Thermostat Housing