11in HO Extreme RAD Fan

The DERALE 11in HO Extreme RAD Fan (model 16920) is a high-output electric cooling fan engineered for vehicles requiring serious thermal management. With a proven 1380 CFM airflow rating and 12-volt operation, this puller-style fan delivers the cooling capacity needed in demanding conditions—whether managing summer heat during highway driving, towing, or extended idle periods where stock cooling falls short.

The 11-inch curved-blade design pulls air efficiently through the radiator core while the 1380 CFM output ensures rapid heat rejection without relying on engine-speed-dependent clutch fans. Measuring 12 x 12.313 inches with a 2.25-inch thickness, the fan integrates into standard radiator shroud openings, and the included installation kit streamlines mounting. The plastic construction keeps weight down at 6.45 pounds—important for minimizing electrical load on the charging system while maintaining structural durability under continuous operation.

This fan is purpose-built for vehicle owners who run higher engine power outputs, tow regularly, or operate in hot climates where margin for thermal headroom matters. Independent electric fans decouple cooling from engine RPM, allowing the radiator to shed heat at a constant, controlled rate. The HO (high-output) designation confirms this unit prioritizes CFM over noise—a trade-off serious enthusiasts and fleet operators accept when managing temperature is non-negotiable. Pair it with a quality thermostat switch and relay kit for automatic on-demand operation.