Product Description
KB790021X – S ADVANTAGE REMAN FAN CLUTCH (CUMMINS L10/M11/N14)
PART NUMBER(S):
Fleet Products: KB790021X (Remanufactured) | OE: 790021 HORTON, 90021 KIT MASTERS, ABP N20 90021 ALLIANCE
DESCRIPTION:
Model: S Advantage
Vehicles: Peterbilt, Volvo / Cummins L10, M11, N14
• Fan Pilot Diameter: 5.00″
• Back Pulley Diameter: 4.98″
• Overall Length: 5.43″
• Belt Configuration: 8K
Applications:
Need a reliable cooling solution for your Cummins-powered Peterbilt or Volvo? This S Advantage reman fan clutch delivers performance and durability for L10, M11, and N14 engines in severe-duty environments. Optimized for thermal efficiency and longevity, it reduces engine wear and supports consistent fan engagement.
CROSS-REFERENCE(S):
3912-99A0021, 3912-99A0021-2, 79A0021, 79A0021-2, 79A0021RMAN, 98A0021, 98A0021-2, 99A0021, 99A0021-2, ABP N20 14256, ABP N20 24256, ABP N20 990021, ABP N20 9900212, FLT14256, FLT24256, FLT990021, FLT9900212, HOR 79A0021, HOR 79A0021-2, HOR 99A0021, HOR 99A0021-2, HOR79A0021, HOR79A0021-2, HOR99A0021, HOR99A0021-2, ZBH99A0021, ZBH99A0021-2, 980049, 980051, 990111, 990113, 8074627, 85108780, KMN2090021, KM N20 90021, FLT90021, KMI90021, 3443-90021, 1077-07738-03, 1077-08191-01, 1093-07740-03, 1093-08192-01, RF790021X
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Always inspect the pulley, bracket, and fan blades for wear or damage before installing the replacement clutch
✔ Confirm air system pressure is within OEM specification to ensure proper engagement
✔ Torque all mounting hardware to Horton-recommended values
✔ Replace worn O-rings and gaskets during installation to avoid air leaks
✔ Ensure correct belt alignment and tension to prevent premature failure
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.
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, call 1-877-243-0442 or email sales@fleet-products.com
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