Coolant Temperature Sensor XTT41 CI. ROVER/TRIUMPH/AUSTIN ADU7161, GTR185. Part Number XTT41. UNIPART GTR134, GTR185, GTR307. JAGUAR EAC3927. Type Sensor, coolant temperature. ROVER 2000-3500 Hatchback (SD1) 2000 Hatchback Petrol 10/1982 10/1986 RWD 8 101 74.