Radiator Fans & Parts

The radiator is mounted at the front of your vehicle behind the grille where it is exposed to airflow when your vehicle is at speed. Heat from the coolant in the radiator core tubes is transferred to the fins and to the air flowing through the radiator, thereby lowering the coolant temperature. However, when your vehicle is moving slowly or stopped, there is little or no ram air through the grille, so the necessary airflow is supplied by a cooling fan. Depending on an application, it can be either mechanical or electric; the latter one is common for all modern-day vehicles.

As it was mentioned before, there are mechanical and electric cooling fans. Most mechanical fans mount on the water pump shaft and are driven off of the crankshaft with the same belt and pulleys that turn the water pump. Because fan operation is generally not needed when the vehicle is running at a speed of 25 mph or higher, the fan blade is attached to a clutch that disengages the fan to reduce noise and save fuel. In addition, most fan clutches are thermal, so they engage and disengage according to air temperature to make sure the vehicle will not get overcooled.

An electric cooling fan blade is driven by a 12V electric motor that operates in response to coolant temperature and the air conditioning switch. One or two electric fans are mounted in a shroud assembly that attaches to the radiator. Shrouds are used with both mechanical and electric fans to ensure all airflow is drawn through the radiator. When engine coolant reaches a pre-determined temperature, a switch signals the Powertrain Control Module (PCM), which activates the fan until the temperature drops below the switch rating. One or both fans may run when the A/C is turned on to provide airflow through the condenser.

If fan component replacement is necessary, we can accommodate the needs of any fan configuration. For mechanical fan vehicles we have fan blades, thermal and non-thermal fan clutches, and electronic fan clutches for severe duty applications. If you have an electric cooling fan we have fan blades, motors, switches, relays, and complete assemblies. All parts meet or exceed original equipment specifications, and are made using premium materials on state of the art manufacturing equipment. With our replacement fan parts you can expect precise fitment and perfect performance, at a price far lower than you’d pay at the dealer.

Even race cars are driven slowly and idle at times, and during such intervals the airflow through the radiator generated by the factory cooling fan may be insufficient to dissipate the heat produced by high compression or forced induction high RPM engines. As a result, too much heat will remain in the radiator and engine coolant, which can result in an overheated engine and expensive component damage. A performance cooling fan will provide the airflow needed for optimal heat transfer, and no matter whether you want to change over from a belt-driven fan to an electric fan, or upgrade your present electric fan to a larger, higher CFM (Cubic Feet per Minute) unit, we have the performance cooling fans for the job. Our selection includes single and dual electric fans, in a range of sizes and CFM ratings, as well as mechanical fans with flexible and rigid blades, and for use with a fan clutch.