OKAY MOTOR Thermostat Housing Assembly for Chevrolet Aveo Aveo5 Cruze Sonic Pontiac G3 1.6L 1.8L Coolant Thermostat Housing for Chevy Aveo Cruze Sonic Tracker Pontiac G3 1.8L Part number: 55578419, 55597008, 96984104, 902-821, 9725-221 New Aftermarket Replacement Unit. 180-days Manufacturer Type Warranty Limited. Application: Cruze, Cruze Limited. Aveo, Aveo5. G3. 1.8L. 2009-11.