Description
KB799761-2X - HORTON DRIVEMASTER ADVANTAGE TWO-SPEED FAN CLUTCH FOR PACCAR MX-13 - REMANUFACTURED
PART NUMBER(S):
Fleet Products: KB799761-2X (Remanufactured) | Replaces OE: PACCAR: F17-6018M02, F17-6015M05, F17-6015M18 | Horton: 79A9590, 79A9761, 79A9761-2, 98A9590, 98A9761, 99A9590, 99A9761, 99A9761-2 | Kit Masters: 99590, 99590-2, KMN2099590, KMN20995902 | Fleetrite: FLT99590, FLT995902 | Alliance: ABPN2099590, ABPN20995902
DESCRIPTION:
Model: Horton DriveMaster Advantage Two-Speed Fan Clutch
Vehicles: Kenworth T680SH, T700, T800SH, and T880SH; Peterbilt 365, 384, 387, 579SH, and 587 trucks from 2010-2020
• Engine: PACCAR MX-13
• Back Pulley Diameter: 6.36"
• Overall Length: 8.54"
• Belt Configuration: 1 × 12-rib serpentine belt
• First Belt Groove Distance: 3.39"
• Fan Blade Bolt Circle: 6.00"
• Fan Pilot Diameter: 5.00"
• Fan Blade Stud Length: 1.05"
• Fan Blade Stud Thread: 0.312"-18
• Vertical Mounting Distance: 1.57"
• Horizontal Mounting Distance: 3.94"
• Journal Bracket Center to Upper-Right Mounting Hole: 4.13"
• Low-Speed Operation: Eddy-current drive
• High-Speed Operation: Spring-actuated engagement
• Design: Non-fail-safe
• Housing: Sealed
CROSS-REFERENCE(S):
010023462, 010024223, 010024224, 010028667, 1000-799761, 1000799761, 10024224, 10026187, 10028667, 3443-99590, 3443-995902, 704454AT, 799761, 79A9761RMAN, 989761, 989761-2, 995902, 99761, 99761-2, 999761, 999761-2, F17-1019M01, F17-6010M01, F17-6015M01, F171019M01, F176010M01, F176015M01, F176015M05, F176015M18, F176018M02, FTL799761, FTL799761-2, HOR79A9761, KMI99590, KMI995902, RC799761, RX79A9590RMAN, RX79A9590RMANRF, RX79A9761RMAN, RX79A9761RMANRF, ZBH79A9761
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 6.36" pulley diameter, 12-rib belt configuration, and 3.39" first-groove position.
✔ Verify the 5.00" fan pilot, 6.00" bolt circle, stud dimensions, and mounting distances against the removed clutch.
✔ Inspect the fan, belt, pulley, journal bracket, air lines, solenoid, electrical connector, and wiring for wear or damage.
✔ Use serviceable mounting hardware and torque all fasteners to Horton or PACCAR specifications.
✔ Verify belt alignment, fan-to-shroud clearance, air-control response, and both low- and high-speed operation.
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
