Description
KB799037X - HORTON DRIVEMASTER ON/OFF FAN CLUTCH FOR FREIGHTLINER/INTERNATIONAL/WESTERN STAR CATERPILLAR 3176, C10, AND C12
PART NUMBER(S):
Fleet Products: KB799037X (Remanufactured) | Replaces OE: Horton: 79A5037, 79A9037, 79A9037-2, 98A9037, 99A9037, 989037, 999037 | Caterpillar: 20R-8383 | International: 3542374C91 | Ford: 20822-3542 | Kit Masters: 99037, KMI99037, KMN2099037 | Alliance: ABPN2099037 | Fleetrite: FLT99037
DESCRIPTION:
Model: Horton DriveMaster DM Advantage Air-Engaged On/Off Fan Clutch
Vehicles: Freightliner, International, and Western Star heavy-duty trucks from 1988-2004
Engines: Caterpillar 3176, C10, and C12
• Pulley Diameters: 7.50" and 7.75"
• Belt Configuration: Single-groove V-belt and 8-rib serpentine belt
• First Belt Groove Distance: 1.98"
• Fan Pilot Diameter: 2.56"
• Fan Blade Bolt Circle: 3.50"
• Number of Fan Blade Studs: 6
• Fan Blade Stud Length: 0.81"
• Fan Blade Stud Thread: 3/8"-24
• Clutch Operation: Pneumatic on/off
CROSS-REFERENCE(S):
208223542, 3443-99037, 3912-79A9037, 799037, 79A9037RMAN, 99037SP, ABP N20 99037, Alliance Truck Parts ABP N20 99037, Daimler Truck North America KM N20 99037, FC799037, Fleetrite FLT99037, HOR 79A9037, HOR79A9037, HOR79A9037-2, HOR989037, HOR99A9037, HOR999037, HT79A9037, KM N20 99037, KM99037, Navistar 3542374C91, P99A9037, RF79037X, RF799037X, Volvo 20822-3542, ZBH99A9037
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 both pulley diameters and the single-groove V-belt/8-rib serpentine belt configuration against the removed clutch.
✔ Verify the 1.98" first-groove position, 2.56" fan pilot, 3.50" bolt circle, and fan-stud dimensions.
✔ Inspect both belts, pulleys, fan blades, hub bearings, air lines, control components, and mounting surfaces.
✔ Torque all fan-clutch, fan-blade, pulley, and mounting hardware to Horton or vehicle-manufacturer specifications.
✔ Verify belt alignment, air-system sealing, engagement, disengagement, and fan-to-shroud clearance.
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
