The Horton Engine Cooling Fan Clutch is the perfect solution for your truck's cooling needs. With a back pulley diameter of 7.54" and a front pulley diameter of 9.04", this fan clutch is designed to fit perfectly in your Peterbilt truck. The overall length of the fan clutch is 8.47", making it easy to install and use. The CL3 belt configuration of 8K, 6K ensures that the fan clutch is compatible with a wide range of belts, while the belt groove location of 1.94" ensures that the belt stays in place during operation. The Engine Cooling Fan Clutch is highly heat resistant and features robust double row angular contact bearings, ensuring that it can handle even the toughest conditions. The dual lip Viton seals extend the life of the fan clutch and prevent leaks, ensuring that your truck stays cool and runs smoothly. So if you're looking for a reliable and durable fan clutch for your Peterbilt truck, look no further than the Engine Cooling Fan Clutch. FleetPride is your First Click in Heavy Duty®.