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The radiator necessitates a fan that would spin speedily to give enough air for cooling the engine. This fan features four or more blades and is usually mounted between the radiator and the engine in order for the outside air to easily find its way to the radiator. To draw more cool air, some vehicles are outfitted with an additional fan positioned in front of the radiator. This extra fan is aimed particularly during hot season or when the vehicle isn’t moving fast enough. On these situations, very small amount of cool air gets in the radiator; hence, the engine isn’t cooled properly.

For it to be more efficient, radiator fan is outfitted with a fan clutch. It is a small fluid mixture with a thermostatic apparatus and is designed to be in command of a variable-speed fan. Fan clutch makes sure that the fan will run or spin at the proper speed to prevent the engine from overheating as well as to decrease drive to the fan when it is no longer needed. The fan clutch possesses a fluid mixture that’s partly made up of silicone oil that’s intended for that sole purpose. When the temperature of the air that passes through the radiator gets higher, the heart commands a bimetal coil spring to uncoil or expand. As it expands, it lets a little more oil to come into the fluid coupling before it will start to run or rotate the fan.

The opposite happens if the air that comes through the radiator is cool. Instead of expanding, the coil spring contracts, the oil departs from the fluid coupling and consequently, the operation of the fan goes slow. Slowing the fan when it isn’t needed lessens fuel consumption, produces less noise and drastically saves engine power. In some cases, a flat bimetal strip is employed instead of a coil spring. This kind of bimetal strip tends to bow out and in as the temperature drops and rises to allow oil from going in and out of the said fluid coupling.

If the clutch of your radiator fan got damaged, you have nothing to worry about. The industry has lots of auto-part stores that offer god quality fan clutch for whatever kind of vehicle you drive. Parts Train is one of the automotive industry’s leading providers of top of the line auto parts and accessories like fan clutch. From major vehicle parts up to the minor ones, Parts Train carries them all. Their many years of experience in the automotive market have made Parts Train one of the most reliable resources of vehicle fan clutch and other auto parts.

Featured Models

Featured Products Fan Clutch HAYDEN FAN CLUTCH -- Severe-Duty Thermal Design, Reverse Rotation, 6.45 in. Overall Diameter, M30x1.5 Right in. Pilot Diameter, 2.42 in. Fan Mount Height, 3.25 in. Fan Bolt Circle, 5/16-18 Hole 4 Bolt And Nut Threads, Turns The Fan 80-90% Of The Shaft Speed When Engaged And 20-30% When Disengaged, Used With 2-1/2 in. Deeper Pitch Fans, Features Land And Groove Design With Up To 72 Square Inch Of Working Area, Larger Working Surface Provides Cooler Running And Longer Life Expectancy, And Thicker Body And Deep Finned Faceplate Dissipate More Heat, Can Be Used In Place Of Many Heavy-Duty Clutches, With Hayden's Limited 5-Year Warranty Brand: Hayden Price: $65.47 Fan Clutch HAYDEN FAN CLUTCH -- Severe-Duty Thermal Design, Reverse Rotation, 6.45 in. Overall Diameter, 0.63 in. Pilot Diameter, 1.63 in. Fan Mount Height, 3.25 in. Fan Bolt Circle, M10 x 1.5 Hole 4 Bolt And Nut Threads, Turns The Fan 80-90% Of The Shaft Speed When Engaged And 20-30% When Disengaged, Used With 2-1/2 in. Deeper Pitch Fans, Features Land And Groove Design With Up To 72 Square Inch Of Working Area, Larger Working Surface Provides Cooler Running And Longer Life Expectancy, And Thicker Body And Deep Finned Faceplate Dissipate More Heat, Can Be Used In Place Of Many Heavy-Duty Clutches, With Hayden's Limited 5-Year Warranty Brand: Hayden Price: $65.47 Fan Clutch HAYDEN FAN CLUTCH -- 6.45 in. overall diameter, M30 x 1.5 right pilot diameter, 1.25 in. fan mount height, 3.25 in. fan bolt circle, 5/16-18 hole 4 bolt and nut threads, severe-duty thermal design, Reverse rotation; Turns the fan 80-90 percent of the shaft speed when engaged and 20-30 percent when disengaged; Used with 2-1/2 in. deeper pitch fans; Features land and groove design with up to 72 sq. in. of working area; Larger working surface provides cooler running and longer life expectancy, and thicker body and deep finned faceplate dissipate more heat; Can be used in place of many heavy-duty clutches; With Hayden's limited 5-year warranty. Brand: Hayden Price: $65.47 Fan Clutch HAYDEN FAN CLUTCH -- Severe-Duty Thermal Design, Reverse Rotation, 6.45 in. Overall Diameter, M30x1.5 Right Pilot Diameter, 1.25 in. Fan Mount Height, 3.25 in. Fan Bolt Circle, 5/16-18 Hole 4 Bolt And Nut Threads, Turns The Fan 80-90% Of The Shaft Speed When Engaged And 20-30% When Disengaged, Used With 2-1/2 in. Deeper Pitch Fans, Features Land And Groove Design With Up To 72 Square Inch Of Working Area, Larger Working Surface Provides Cooler Running And Longer Life Expectancy, And Thicker Body And Deep Finned Faceplate Dissipate More Heat, Can Be Used In Place Of Many Heavy-Duty Clutches, With Hayden's Limited 5-Year Warranty Brand: Hayden Price: $65.47 Fan Clutch HAYDEN THERMAL FAN CLUTCH -- Standard Rotation, Varies The Fan Speed With Temperature Of The Air Behind The Radiator, Engaged High Speed Operation Provides Maximum Cooling, Disengaged Low Speed Operation Provides Fuel Savings And Noise Reduction, Offers Greater Life Expectancy Than A Non-Thermal Clutch, Briefly Engaged At Cold Start-Up, Engages At About 170 Degrees Radiator Air Temperature About 30 Degrees Lower Than Coolant Temperature, With Hayden's 5-Year Or 50,000 Miles Limited Warranty Brand: Hayden Price: $33.14