The Horton Fan Clutch for Bluebird is the perfect solution for those looking for a reliable and efficient fan clutch. With a back pulley diameter of 6.68" and a front pulley diameter of 6.26", this fan clutch is designed to fit perfectly with your Bluebird truck. The overall length of the clutch is 4.22", making it easy to install and maintain. The CL3 belt configuration of 8PK and 6PK ensures that the fan clutch can handle high torque for turning larger fans. The Fan Clutch for Bluebird is designed with a fail-safe design and lower parts count, making it easy to install and maintain. It also allows for faster engine warmups in cold weather, ensuring operating efficiency. If you're looking for a reliable and efficient fan clutch for your Bluebird truck, the fan clutch is the perfect choice. FleetPride is your First Click in Heavy Duty®.