This premium water temperature sending sensor fits part numbers 171960 and 700427. It works well for all kinds of diesel engine setups. It accurately picks up engine coolant temperature levels. It then relays precise signal readings to the vehicle instrument panel. Built with responsive internal parts and tough external build, this unit stays dependable even under tough operating circumstances. It aligns fully with original factory design requirements, and acts as a great replacement for worn-out or malfunctioning sensors.