Description The key reason for premature spring-engaged fan clutch failures is LACK OF TORQUE. There are fan blades in operation today that require more torque than current fan clutches can produce. Our GoldTop fan clutches pack over 5,000 inch-lbs of torque. Enough to handle nearly any size fan blade. Application Peterbilt Caterpillar C15 ACERT Peterbilt Caterpillar C16 ACERT   *There is a $250 core charge. Cores can be returned for a $250 refund. Fill out and print the form below and add it to the return box, send cores to: SP Truck Parts Core Return 30026 Beverly Rd Romulus MI 48174   Fan Clutch Core Return Form