Thermostat Housing Kit for Mercruiser Alpha V6 & V8, Replaces 860256A3

4 Pipe Thermostat Housing Kit for Mercruiser Alpha Engines

Used on 4.3L, 5.0L, 5.7L Engines with Alpha Sterndrive

Replaces Mercruiser 860256A3

Supplied with 160 Degree Thermostat