The Horton Engine Cooling Fan Clutch is designed to keep your engine running cool and efficiently. With a back pulley diameter of 7.20" and a front pulley diameter of 8.64", this fan clutch is built to fit perfectly on your Kenworth truck. The Engine Cooling Fan Clutch is designed with a CL3 belt configuration, which can accommodate both 8PK and 6PK belt sizes. The belt groove location is 1.94", ensuring a secure fit and optimal performance. The bolt circle measures 3.50", while the fan pilot diameter is 2.56". This fan clutch is built to last. The fan center is designed to provide maximum cooling power, while the premium friction liner material ensures long life and excellent wear characteristics. The liner design is optimized to handle high power fans, making this fan clutch the perfect choice for Kenworth trucks. Manufactured by Horton, a trusted name in engine cooling technology, this fan clutch is made from high-quality materials that are resistant to high temperatures and wear. So if you're looking for a reliable and efficient cooling solution for your Kenworth truck, look no further than the Engine Cooling Fan Clutch. FleetPride is your First Click in Heavy Duty®.