Shop 2023 Audi A5 Engine Coolant Thermostat Housing. 1.9 LITER. 2.0 LITER, DIESEL. Jetta Wagon. Jetta; 1 LITER, Cooling, Wagon - OEM Audi Part # 03L121121A (03G121121D, 03L-121-121-A)

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, Jetta GLI, Jetta Wagon, SportWagen

1.9 LITER. 2.0 LITER, DIESEL. Jetta Wagon. Jetta; 1.9L TDI. Jetta; 2.0L TDI. Sedan/Wagon, 2.0 LITER, DIESEL.
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 to overheat. Consider replacing your engine coolant thermostat or having our staff of expert techs handle it for you.