This water temperature sensor with part numbers 05204-50300 and 0520450300 fits 6D31 diesel engine and E200B excavator flawlessly. It accurately tracks instantaneous coolant temperature and outputs consistent signals to prevent engine overheating issues. Built with premium sensor cores and robust enclosed casing, this unit maintains dependable operation amid tough construction site surroundings. Produced following rigorous OEM design standards, it delivers precise installation compatibility and steady performance for routine machine upkeep and aftermarket part fitting.