Description
KB799748-2X - HORTON DRIVEMASTER TWO-SPEED FAN CLUTCH FOR INTERNATIONAL/CUMMINS ISX - REMANUFACTURED
PART NUMBER(S):
Fleet Products: KB799748-2X (Remanufactured) | Replaces OE: International: 3940575C91, 3940575C92 | Horton: 799748-2, 79A9748-2, 98A9748, 98A9748-2, 99A9748, 99A9748-2 | Kit Masters: 99748, 99748-2, KMN20997482 | Alliance: ABPN20997482 | Fleetrite: FLT997482
DESCRIPTION:
Model: Horton DriveMaster Two-Speed Fan Clutch
Vehicles: International LoneStar and Global LoneStar trucks from 2007-2023 with Cummins ISX, ISX15, or X15 engines
• Back Pulley Diameter: 7.28"
• Overall Length: 11.91"
• Belt Configuration: 1 × 12-rib serpentine belt
• First Belt Groove Distance: 6.66"
• Fan Blade Bolt Circle: 3.50"
• Fan Pilot Diameter: 2.56"
• Fan Blade Stud Length: 0.81"
• Fan Blade Stud Thread Diameter: 0.38"
• Vertical Mounting Distance: 4.49"
• Horizontal Mounting Distance: 4.56"
• Journal Bracket Center to Upper-Right Mounting Hole: 0.61"
• Low-Speed Operation: Eddy-current drive
• High-Speed Operation: Spring-actuated engagement
CROSS-REFERENCE(S):
3443-997482, 997482, ABP N20 997482, KM N20 997482, KMI997482, HOR79A9748, HOR99A9748, RX79A9748RMAN, RX79A9748RMANRF, ZBH79A9748, ZBH99A9748, 10022384, 10023704, 3814702C91, 3912-79A9748, 3912-99A9748, 799748, 79A9748, 989748, 989748-2, 999748, 999748-2, FTL799748, FTL799748-2
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 7.28" pulley diameter, 12-rib belt configuration, and 6.66" first-groove position.
✔ Verify the 2.56" fan pilot, 3.50" bolt circle, fan stud dimensions, and mounting distances against the removed clutch.
✔ Inspect the fan blades, pulley, journal bracket, bearings, air line, electrical connector, and wiring for wear or damage.
✔ Replace worn mounting hardware and torque all fasteners to Horton or International specifications.
✔ Verify belt alignment, fan clearance, air-system sealing, electrical operation, and both low- and high-speed modes.
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.
Warranty Information
