The Derale 18″ HeavyDuty Flex Fan (Part 17018) is expertly crafted for demanding engine environments where cooling efficiency and belt reliability matter. Its six rugged stainless-steel blades flex strategically under high RPMs, reducing mechanical load and belt wear without compromising airflow at low speeds. Rated for operation up to 10,000RPM, this fan is perfect for towing, off-road, racing, or performance street applications.

Part Number: 17018