Buy Volkswagen Jetta GLI Engine Coolant Thermostat Housing. 4 CYLINDER. 4000, Coupe, Quattro; 4 Cyl CYLINDER, COOLING, Water - OEM Volkswagen Part # 055121121F (055-121-121-F)

Adapter. Engine Coolant Thermostat Housing. Thermostat hsng. Water Neck.
Engine Coolant Housing where a Thermostat is used but not included.

Engine Coolant Thermostat Housing

Fits Jetta GLI (1984 - 1992)

4 CYLINDER. 4000, Coupe, Quattro; 4 Cyl. Cabriolet. Corrado, Passat. Golf, GTI, Jetta. Quantum; 4 Cylinder. Scirocco.
Engine Coolant Thermostat Housing - Repair or Replace
A failed thermostat housing will likely result in a cooling system leak, or will cause the engine in your Volkswagen Jetta GLI to overheat. Consider replacing your engine coolant thermostat or having our staff of expert techs handle it for you.