Product Description
KB798162-2X – DRIVEMASTER TWO-SPEED FAN CLUTCH PACCAR PX-8 / PX-9
PART NUMBER(S):
Fleet Products: KB798162-2X (Remanufactured) | OE: Horton 79A8162-2, 798161, 798162, 988161, 988162, 998161, 998162, Kit Masters 99627, 99627-2, Paccar F17-6017M39, F176017M39
DESCRIPTION:
Model: Horton Drivemaster Two-Speed Fan Clutch (Remanufactured)
Vehicles: Kenworth T170, T270, T370; Peterbilt 335, 337, 348, 340 (2010–2018, PACCAR PX-8, PX-9)
• Back Pulley Diameter: 6.65"
• Overall Length: 6.73"
• Belt Configuration: 8K
• Belt Groove Location: 2.25" from clutch face
• Bolt Circle: 6"
• Fan Pilot Diameter: 5.00"
• Fan Blade Stud Length: 1.07" (0.312-18 UNC 2A thread)
• Vertical Mounting Distance: 2.01"
• Horizontal Mounting Distance: 4.41"
• Center of JB to Top Right Mounting Hole: 5.3"
• Drive Mode: Two-speed with eddy-current low speed and spring-actuated high speed
• Construction: Premium bearings, friction liners, dual O-ring seals (urethane & Viton)
Applications: Is this fan clutch compatible with your PACCAR PX-8 or PX-9 (Comparable to Cummins ISL) powered Kenworth or Peterbilt vocational truck? Yes — engineered for variable-speed cooling to reduce parasitic load, improve fuel efficiency, and extend service life. Ideal for fleets requiring consistent cooling in medium-duty and regional haul environments.
CROSS-REFERENCE(S):
3443-996272, 79A8162-2, 798161, 798162, 988161, 988162, 99627, 99627-2, 996272, 998161, 998162, 999627, 1105230, 1105231, ABP N20 996272, ABPN20996272, F17-1014M12, F17-6017M39, F176017M39, FLT996272, KM N20 996272, KMI996272, KMN20996272, RX798162RMAN, RX798162RMANRF, F17-6014M30, F176009M30, 998161H0R, HOR798161, HOR988162, HOR998162, P998162, 798162-2, 79A8162-2, 98162-2, 988162-2, 98A8162-2, 998162-2, 99A8162-2, FTL798162-2, 798162, 79A8162, 98162, 988162, 98A8162, 998162, 99A8162, FTL798162.
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Confirm 8K belt configuration and 6.65" pulley diameter match OE spec.
✔ Ensure fan pilot and stud thread dimensions are compatible with original fan.
✔ Use new mounting hardware if existing is worn or damaged.
✔ Follow Horton torque specs and installation sequence for best results.
Drivemaster 2-Speed Repair Kits:
SOLD AS REMANUFACTURED – CORE RETURN REQUIRED
Built to OEM standards — thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, call 1-877-243-0442 or email sales@fleet-products.com
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