Blade and wiring can be reversed to make the fan an air pusher. American Volt high performance reversible slim 12V electric cooling fan. The experts say pullers are 20% more efficient than a pusher. This means you get the superior flow of a curved-blade design with the versatility of a push/pull reversible fan. Most of the aftermarket electric radiator fans can be used as a 'pusher' but they a not as effective in that way of being used. Use a puller fan whenever possible. The best service and most favorable prices on Radiator with Connection Components. Free shipping . Choose the largest diameter fan(s) that will fit your car or truck. $150.00. Durably built to be shock resistant for on-road and off-road applications. Al Baker, Aug 28, 2016. Side Radiator vs Rear in Diesel Pusher. Primary electric fans (pullers) are designed to mount behind the radiator and replace a factory belt-driven fan. the brackets were some scrap aluminum that I had laying around and mounted the fan in front of the radiator. Independent tests have shown that even with a pusher style fan mounted only 5/8 of an inch away from the face of the radiator, there is still a vast amount of air that escapes from around the skirt between the radiator and the fan blades. Motivated by a 2-speed 265 watt Bosch motor driving 11 patented skewed blades, each includes a patented ratchet mounting system for a professional installation. All models and sizes are finished in a high-tech Euro-Black color and are available with several motor choices including Thin Line, Medium Profile, and High Torque motors. The best way to test it is to bypass the fan's normal circuit and straight wire the fan to the engine. Moves up to 2400 CFM while drawing up to 23.5 amps. This keeps the fan out of the natural airflow path into the radiator. If you take a 16-inch axial fan and put it in front of the radiator core (as in a pusher-type installation), the incoming air is going to hit the 4-inch-diameter electric motor cap. If you have space issues, you can use an electric fan in a pusher configuration in front of the radiator. To get the most air flow with the fan you still need a shroud to pull air from the whole radiator core. Super Duty Pusher Electric Fan by Hayden®. The fan is supplied as a "puller" to mount behind the radiator, but it can be changed to a "pusher" by reversing the wires and mounting in front of the radiator. Answer: Sometimes a curved fan is better than a straight fan, but not always. A pusher fan sits in front of the radiator. This versatile electric fan can be used as either a primary fan to free up extra horsepower from your engine or as an auxiliary fan to provide extra airflow and cooling. Engine cooling system radiator fans 2485C518 move the air aiding the cooling effect on the radiator, to ensure your engine runs at the right temperature. When mounted as a 'pusher' they obstruct air flow when not "on". Locate the positive and negative wires on the cooling fan. As a person who has owned 1 rear radiator pusher motorhome, and 3 side radiator pusher motorhomes, I have been following this thread with a great deal of interest. Cut both wires and strip 1/2 an inch of insulation off of the ends of the two fan wires. They also interfere with air flow at highway speeds. This forced the fan to "suck" air through the radiator. I'd like to put a pusher fan on the radiator to help keep things cool when going slow. The dimensions of the fan are 8-1/8 inches wide x … Can be used as a pusher or puller fan by simply flipping brackets without changing direction of the unit. Fan can also be used as puller by combining with a custom built shroud. 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