JAC Ruifeng Ruiying Binyue Coolant Temperature Sensor 1026604GAA 476Q-4D Direct Fit

If your JAC Refine, Ruixing or Bin Yue shows abnormal water temperature gauge swing, cold-start difficulties, or fan cycling frequently, the engine coolant temperature sensor may have aged or failed. This sensor monitors coolant temperature and sends signals to the ECU to precisely control fuel injection and ignition timing for stable operation. OEM design; fits JAC Refine, Ruixing, Bin Yue; OEM numbers 1026604GAA / 476Q-4D-1300800. Installation must be performed with engine cold; avoid damaging gasket; torque per OEM standard.