Coolant thermostat / housing Thermostat housing with thermostat regulating coolant flow as the engine warms up NAPA "NTH1049" - Not availableAUDI - A6, 100, A4, A8, 80; VW - Transporter, LT 28-35; JAGUAR - XJ, XK; VOLVO - 740, 240; BMW - 3