The Horton Engine Cooling Fan Clutch is the perfect solution for keeping your engine coolant temperatures at optimum operating efficiency. With its on and off operation, this fan clutch reduces noise and conserves fuel, making it an ideal choice for any truck owner. The low parts count also makes installation and maintenance a breeze. This fan clutch is designed to fit Freightliner trucks with a back pulley diameter of 7.54". With an overall length of 8.21", this fan clutch is built to last and will keep your engine running smoothly. So if you're looking for a reliable and efficient cooling fan clutch for your Freightliner truck, look no further than the Engine Cooling Fan Clutch. FleetPride is your First Click in Heavy Duty®.