Description
KB790021X - HORTON S ADVANTAGE FAN CLUTCH FOR CUMMINS L10/M11/N14 ENGINES - REMANUFACTURED
PART NUMBER(S):
Fleet Products: KB790021X (Remanufactured) | Replaces OE: Horton: 790021, 79A0021, 79A0021-2, 98A0021, 98A0021-2, 99A0021, 99A0021-2, 980049, 980051, 990111, 990113 | Volvo: 8074627, 85108780 | BorgWarner: 1077-07738-03, 1077-08191-01, 1093-07740-03, 1093-08192-01 | Kit Masters: 90021, KMN2090021 | Alliance: ABPN2090021, ABP N20 14256, ABP N20 24256, ABP N20 990021, ABP N20 9900212 | Fleetrite: FLT14256, FLT24256, FLT90021, FLT990021, FLT9900212
DESCRIPTION:
Model: Horton S Advantage Air-Engaged Fan Clutch
Vehicles: Peterbilt and Volvo trucks with Cummins L10, M11, N14, and related engine platforms
• Component Type: On/off fan clutch assembly
• Engagement Type: Pneumatic air-engaged
• Back Pulley Diameter: 4.98"
• Overall Length: 5.43"
• Belt Configuration: 1 × 8-rib serpentine belt
• Fan Pilot Diameter: 5.00"
CROSS-REFERENCE(S):
3912-99A0021, 3912-99A0021-2, 79A0021RMAN, HOR79A0021, HOR79A0021-2, HOR99A0021, HOR99A0021-2, ZBH99A0021, ZBH99A0021-2, KM N20 90021, KMI90021, 3443-90021, RF790021X
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 8-rib belt configuration, 4.98" pulley diameter, 5.00" fan pilot, and overall mounting clearance.
✔ Inspect the fan blades, pulley, mounting bracket, air line, fittings, bearings, O-rings, and drive belt for wear or damage.
✔ Align the pulley with the engine drive and set belt tension to the vehicle manufacturer's specification.
✔ Torque all fan clutch and mounting hardware to Horton or vehicle specifications.
✔ Pressurize the air system and verify full clutch engagement, release, belt alignment, and fan clearance.
S Advantage 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
