This DURALAST 4602 Engine Coolant Thermostat replaces CST Motorad Dorman Mahle Stant NAPA CARQUEST CARQUEST Caps and Stats NAPA Belts/Hose 467-206 467-185 14602 902-813 TM1397 4602 423206 31442 33934 BMW 11530139877 11537509227 and is perfect for replacement or a performance upgrade. Check the list above for fitment on your application. Sold new and unused with the original box.