1Applicable Model: Thermostat 180F is replacement for Polaris Rzr Ranger Crew Xp 900 570, please confirm whether your model is applicable before buying. 2OE Number: The part numbers of thermostat for reference are 7052496, 5413948, please confirm whether it is consistent with the OE you need. 3Function: Thermostats improve temperature regulation and control, keeping the engine at an optimal temperature and helping the engine run more efficiently. 4Hard Material: The thermostat with seal is made of metal and rubber material to ensure durability, rust and high temperature resistant, long service life. 5Direct Replacemet: Based on the original factory specifications, thermostat with O ring is a direct replacement for the old or broken one.