This coolant level sensor is a must-have for Kenworth and Peterbilt trucks. Ensure the proper functioning of your vehicles cooling system by replacing your old, worn-out sensor with this brand new one from Automann. The part number for this sensor is 577.59511. Takes the place of the OEM number KZ359001. With this sensor, you can keep track of your engine coolant level and avoid any potential overheating or engine damage. Dont wait until its too late, get this coolant level sensor today and enjoy a safe and smooth ride.