Peterbilt / Cummins ISX & X15 Fan Clutch | Borg Warner 10900965001 - Kit Masters 8901N - Horton 9908504 | FleetRun FR-ENGN469


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6 Month / 50,000 Mile Warranty

Part Number

  • FleetRun: FR-ENGN469

Cross Reference Part Number

  • Borg Warner: 10900965001 / 1090-09650-01
  • Kit Masters: 8901N / 8801N / 8801X
  • Horton: 9908504 / 99A9653


  • Replaces K22, K26, K30 and K32 style rear air fan clutches
  • Fan Pilot Diameter: 2.56 inches
  • Mounting Diameter: 3.50 inches
  • Upgraded Lining For Extended Life
  • Air Operated
  • Fits 2008-2023+ Peterbilt 389, 387, 579, 587 trucks and more with Cummins ISX / X15 engines

Please note: this is an aftermarket part, the use of other manufacturer's names, part numbers or trademarks is for informational purposes only.

Please verify OEM part numbers before purchasing, FleetRun assumes no liability related to product use and fitment.

Introducing the FleetRun Fan Clutch Kit, the ultimate solution for your Peterbilt semi truck. Designed to prevent having to replace pulley bearings and fan clutches in the future, this kit features superior air barrier and advanced friction material technology that ensures optimal performance, as well as auto lock.

With its patented fail-safe innovation, the fan clutch will automatically lock when the friction material nears the end of its life, providing peace of mind and preventing engine damage. The modular design allows for easy installation and maintenance, keeping your truck on the road for longer.

Backed by an industry-best warranty, you can trust the reliability and durability of the Kit Masters Fan Clutch Kit. With a cross reference of 1090 09650 01 and 1090 09600 01B, our fan clutch is ready to create and maintain a reliable cooling system for your vehicle.

Featuring rear air operation and fewer moving parts, this kit offers enhanced efficiency and longevity. Its exceptional build quality and performance have earned it rave reviews and high ratings from satisfied customers.

Don't wait any longer. Purchase your FleetRun Fan Clutch Kit today and enjoy the benefits of cutting-edge technology and superior craftsmanship. Say goodbye to overheating issues and ensure optimal cooling system functionality for your Peterbilt truck. Trust FleetRun for all your fan clutch and pulley bearing replacement needs. We also offer a product warranty on all FleetRun parts, so that way you can experience all of the benefits without having to put your money at risk.


  • Cummins ISX
  • Cummins X15


  • 2006-2023+ Peterbilt 389
  • 2008-2010 Peterbilt 387
  • 2008-2023+ Peterbilt 579
  • 2010-2016 Peterbilt 587

Replacement & Troubleshooting

  • For other information such as tips and tricks or troubleshooting from technicians and shops visit our Shop Talk page from our menu

How do I know if my fan clutch needs to be replaced on my Peterbilt?

  • Cooling fan constantly on (this is a design made to protect your fan clutch from damaging your engine when the friction material wears out)
  • Increased fuel consumption (because the fan is always on)
  • Excessive free play in the fan clutch while air is supplied
  • Fan clutch is seized with air supplied to it

If you're experiencing any of these symptoms, have your fan clutch checked out by a professional as soon as possible to avoid serious engine damage.