BorgWarner Thermal Systems

Bi-Metal Viscous Fan Clutches

BorgWarner bi-metal viscous fan clutches are designed to provide variable fan drive options to applications that either have a fixed fan or do not have compressed air and/or electronic controls available. These revolutionary fan clutches use heat-sensing bi-metal actuators to engage the cooling fan according to demand. The actuator senses the temperature behind the heat exchangers while silicone gel in the working chamber controls the fan speed depending on cooling needs. As the heat exchanger temp goes down, the fluid valve closes, disengaging the fan. 

We carry several models of BorgWarner bi-metal viscous fan clutches depending on your truck or fleet’s unique needs:

750 SERIES FAN CLUTCHES

For fan/vehicle combinations that require a lower torque capacity, the 750 series fan drive is the perfect solution.

795 SERIES FAN CLUTCHES

The BorgWarner 795 series fan clutch is a popular choice for vehicles that need the next level up in terms of torque capacity and size.

805 SERIES FAN CLUTCHES

The strongest torque capacity and largest in size for heavy-duty applications.

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MORE ROTATION AND MOUNTING OPTIONS

More options mean the best fit for you and your truck or fleet. Borgwarner clutches offer clockwise, counterclockwise, remote pulley and crankshaft mounting.

SELF-CONTAINED, MAINTENANCE-FREE SOLUTIONS

BorgWarner fan clutches have softer engagement, leading to extended service life of the belt and accessories. Vehicle/fan combinations can also be fiexible due to height, cost, performance, and durability preferences.

Kysor On/Off Fan Clutches

BorgWarner’s celebrated line of Kysor On/Off fan drives are proven and robust with the most durable bearing package and base design for commercial vehicle line haul duty cycle. With 20% fewer parts than the competition, Kysor On/Off clutches from BorgWarner turn on when you need them and turn off when you don’t so you can focus on the journey ahead. 

KYSOR ON/OFF CLUTCHES OFFER:

  • A perfect fit on most applications
  • Reduced service time, with liners taking only 10-20 minutes to replace
  • Ease of service
  • Higher torque capacity
  • Hub bearing liability and reduced wear

We offer multiple BorgWarner Kysor On/Off options for your trucking needs including:

  • K30 and K32 models that can handle bigger fans and faster speeds
  • K26 front air models that do not require a BorgWarner hub for installation
  • K26 rear air models. The K26 models are the second generation in Kysor On/Off clutches, featuring gold housing and higher torque capacity than previous generations.
  • K22 rear air assemblies. The K22 generation from BorgWarner has silver housing and is the first generation of Kysor On/Off clutches.

Durospeed 2-Speed Fan Drives

BorgWarner DuroSpeed fan drives offer 2 speeds to ensure proper engine cooling while also keeping your truck fuel-efficient and quiet on the road. DuroSpeed fan drives offer multiple benefits over traditional 2-speed fan clutches including:

  • An average 70 degree cooler running temperature, leading to extended bearing and liner life
  • An innovative flux ring design that dissipates heat 27% better than the competition
  • No spinning air fittings to wear out
  • Using the flux ring assembly kit, converting On/Off clutches to DuroSpeed is fast and inexpensive
  • 11 fewer components than the competition and clutches that are 5-10 pounds lighter
  • Innovative coreless design

The superior performance of BorgWarner DuroSpeed fan clutches reduces overall operating noise and also minimizes radiator clogging. The fan thrust also adds to the torque capacity instead of reducing it. 

Clean, Energy-Efficient Thermal Management Solutions

BorgWarner carries a century of experience in modernizing clean energy solutions for combustion, hybrid, and electric vehicles and has become an industry leader in pioneering thermal management solutions. For those who are serious about trucking, BorgWarner’s focus on clean, energy-efficient technology provides a way to keep your business going, your fuel costs low, and your downtime at a minimum.

In addition to having an environment-centered focus on the future, BorgWarner also places a strong emphasis on sustainability. Their annual sustainability reports are available to the public, and the company is at the forefront of efforts to support their local communities and participate in events and opportunities to keep the planet clean. While their efforts in designing and engineering thermal management solutions are celebrated in the heavy-duty truck industry, the BorgWarner focus on clean and efficient technology also extends to diesel cold-start and ignition, boosting, engine timing, exhaust gas management, starter/alternator, and transmission technologies.

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  1. DRIVE 750 W/COIL
    DRIVE 750 W/COIL

    Part Number:  010019000

    Availability Status: Current

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    $236.36

    MSRP $350.99
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  2. FAN HUB ASM
    FAN HUB ASM

    Part Number:  010020369

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    $494.40

    MSRP $732.99
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  3. BorgWarner 750 Viscous Fan Clutch - 010020509
    BorgWarner 750 Viscous Fan Clutch - 010020509

    Part Number:  010020509

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    $236.10

    MSRP $350.99
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  4. BorgWarner 750 Viscous Fan Clutch - 010020755
    BorgWarner 750 Viscous Fan Clutch - 010020755

    Part Number:  010020755

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    $216.96

    MSRP $322.99
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  5. BorgWarner Viscous Fan Clutch - 010020893
    BorgWarner Viscous Fan Clutch - 010020893

    Part Number:  010020893

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    $222.66

    MSRP $330.99
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  6. BorgWarner Viscous Fan Clutch - 010020914
    BorgWarner Viscous Fan Clutch - 010020914

    Part Number:  010020914

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    $235.98

    MSRP $350.99
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  7. BorgWarner 805 Viscous Fan Clutch - 010021288
    BorgWarner 805 Viscous Fan Clutch - 010021288

    Part Number:  010021288

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    $253.51

    MSRP $424.99
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  8. BorgWarner 750 Viscous Fan Clutch - 010021314
    BorgWarner 750 Viscous Fan Clutch - 010021314

    Part Number:  010021314

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    $239.06

    MSRP $354.99
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  9. BorgWarner Viscous Fan Clutch - 010021511
    BorgWarner Viscous Fan Clutch - 010021511

    Part Number:  010021511

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    $239.06

    MSRP $354.99
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  10. BorgWarner 810 Fan Drive - 010021525
    BorgWarner 810 Fan Drive - 010021525

    Part Number:  010021525

    Availability Status: Current

    SPECIAL ORDER
    Usually ships in 36 Days

    Special Price

    $404.72

    MSRP $600.99
    SAVE 33%
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