Product Description
HORTON DRIVEMASTER TWO-SPEED FAN CLUTCH
PART NUMBER(S):
HORTON: 79A9764, 98A9764, 99A9764
OEM: PACCAR F17-6009M05, F17-6009M26, F17-6013M26, F17-6014M05, F17-6017M02
NAVISTAR: FLT997642
DESCRIPTION:
Model: Horton DM Advantage Two-Speed (Remanufactured)
Engines: PACCAR MX-Series, Cummins ISL / ISL-G
Vehicles: Peterbilt, Kenworth, Navistar Class 8 Truck Platforms
- Back Pulley Diameter: 6.65 in
- Front Pulley Diameter: 6.54 in
- Overall Length: 10.2 in
- Belt Configuration: 8/6 PK (dual pulley system)
- Belt Groove Location: 2.25 in
- Bolt Circle: 6 in
- Fan Pilot Diameter: 5 in
- Fan Blade Stud Length: 1.25 in
- Stud Thread Size: .312-18 UNC
- Vertical Mounting Distance: 2.01 in
- Horizontal Mounting Distance: 4.41 in
- Center of JB to Top Right Mounting Hole: 4.21 in
- Drive Type: Dual pulley, temperature-controlled two-speed fan clutch
- Features: Optimized for heavy-duty drive systems, low-noise operation, high load resistance
- Performance: Improved torque distribution, ideal for severe-duty fleet use and extended service life
DM Repair Kits:
- Minor Seal Repair Kit: 294346
- Major Repair Kit: 294351
- Super Repair Kit: 295568, 295575, Q299999 (Universal)
Applications:
Direct replacement for fan clutch systems in Peterbilt / Kenworth / Navistar trucks with PACCAR MX or Cummins ISL engines. Designed for rugged fleet duty and multi-accessory belt systems, offering precise fan engagement under changing load and thermal conditions.
SOLD AS REMANUFACTURED – CORE RETURN REQUIRED
Built to OEM standards — thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
CROSS-REFERENCE(S):
Confirm whether your system uses a single-speed or two-speed fan clutch
10023231, 3443-997642, 79A9764, 79A9764RMAN, 98A9764, 997642, 99A9764,
ABP N20 997642, ABPN20997642, F17-6009M05, F17-6009M26, F17-6013M26, F17-6014M05,
F17-6017M02, F176009M05, F176009M26, F176013M26, F176014M05, F176017M02,
FLT997642, KM N20 997642, KMI997642, KMN20997642, RX79A9764RMAN, RX79A9764RMANRF
A cross-reference listing means this compressor should be a suitable replacement for the part numbers listed. Please confirm all dimensions match your application before installing.
INSTALLATION NOTES:
>Confirm dual 8/6 PK belt pulley spec and both pulley diameters
>Match vertical/horizontal mount spacing and bolt circle with OEM fan mount
>Use new fasteners and gaskets where applicable
>Torque mounting bolts per OE guidelines
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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