Derale 13" Flex Fan Heavy Duty Stainless Steel Standard Rotation Black Hub 17013 Cadillac 650 CFM reversible Tornado electric

650 CFM reversible Tornado electric fan

5mm threaded spin on adaptor

and street rod

and much more

Note: 13mm drive shaft

Derale 13" Flex Fan Heavy Duty Stainless Steel Standard Rotation Black Hub 17013 Cadillac 650 CFM reversible Tornado electricThe Derale 13 Heavy Duty Flex Fan provides maximum airflow and cooling at low RPM when vehicle speeds provide little or no air through the radiator. As vehicle speed and engine RPM increase, it provides ample airflow and the fan blades flatten to minimise engine loading, increasing horsepower and fuel economy. Rated up to 10,000 RPM, this little 13 diameter heavy duty standard rotation fan features thick black steel hubs and 6 stainless reinforced