Description
KB797260X - HORTON DRIVEMASTER DMA ON/OFF FAN CLUTCH FOR KENWORTH/PETERBILT CUMMINS ISX, ISX15, AND X15
PART NUMBER(S):
Fleet Products: KB797260X (Remanufactured) | Replaces OE: Horton: 79A7260, 98A7260, 98A8394, 99A7260, 99A8394 | PACCAR: F17-1060, F17-1119 | Kit Masters: 97260, KMI972602 | Fleetrite: FLT972602
DESCRIPTION:
Model: Horton DriveMaster DMA Air-Engaged On/Off Fan Clutch
Vehicles: Kenworth T680, T800, and T800B; Peterbilt 579 trucks from 2021-2025 with Cummins ISX, ISX15, or X15 engines
• Back Pulley Diameter: 6.93"
• Belt Configuration: 1 × 12-rib serpentine belt
• First Belt Groove Distance: 6.66"
• Fan Pilot Diameter: 2.56"
• Fan Blade Bolt Circle: 3.50"
• Fan Blade Stud Length: 1.05"
• Fan Blade Stud Thread: 3/8"-18 UNC
• Vertical Mounting Distance: 3.19"
• Horizontal Mounting Distance: 6.36"
• Overall Length: 11.95"
CROSS-REFERENCE(S):
3443-972602, 797260, 987260, 997260, F171060, FC797260, HOR79A7260, KM N20 972602
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Confirm the 6.93" back pulley diameter, 12-rib belt configuration, and 6.66" first-groove position against the removed clutch.
✔ Verify the 2.56" fan pilot, 3.50" bolt circle, fan-stud length, thread size, mounting distances, and overall length.
✔ Inspect the fan, belt, pulley, hub bearings, mounting surfaces, air line, and control components for wear or damage.
✔ Torque all fan-clutch, fan-blade, pulley, and mounting hardware to Horton or PACCAR specifications.
✔ Verify belt alignment, fan clearance, air-system sealing, engagement, and disengagement before returning the vehicle to service.
Drivemaster On/Off Repair Kits:
- Minor Seal Repair Kit: 294346
- Major Repair Kit: 294351
- Super Repair Kit: 295568, 295575, 299985, Q299999 (Universal)
- Lining Kit: 294349
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
Warranty Information
