This fan motor breaker is compatible with Kawasaki Mule 3000 and 4000 models from 2004 to 2009. It is also compatible with Brute Force 650 ATVs from the same model years. This breaker protects the electric fan motor by shutting it off if the current draw exceeds safe levels. It helps prevent overheating and extends the life of the fan motor. Its compact size and plug-in installation make it simple to swap out a faulty existing breaker. Whether you need to replace a broken breaker or are looking to add protection for your side-by-side or ATV's electric cooling fan, this part is designed to keep your vehicle running safely. OEM Fan Motor Breaker 21008-0001 Compatible With Kawasaki Mule 3000 4000 Brute Force 650 (2004-2009)