Description
KB791090X – HT/S ADVANTAGE FAN CLUTCH (Western Star/Caterpillar C10, C12, 3176)
PART NUMBER(S):
Fleet Products: KB791090X (Remanufactured) | OE: 791090, 991131, 981060, 20822-3514, 20822-3491 WESTERN STAR
DESCRIPTION:
Model: HT/S Advantage
Vehicles: Western Star (Caterpillar C10, C12, 3176)
• Clutch Type: On/Off Pneumatic
• Belt Configuration: 8K, 1V
• Fan Pilot Diameter: 2.00"
• Pulley Diameter: 7.75" and 7.50"
• Fan Blade Bolt Circle: 3.50"
• Friction Plate: 9.5"
• Heavy-duty hub bearing assembly with spring-loaded fine spline design
Applications: Is this fan clutch compatible with your Caterpillar-powered Western Star✔ Yes—designed for C10, C12, and 3176 engines, this HT/S Advantage fan clutch delivers high torque capacity, reliable cooling, and direct OEM fitment for severe-service vocational and highway applications.
CROSS-REFERENCE(S):
20822-3491, 20822-3514, 208223491, 208223514, 3443-91090, 3912-791090, 3912791090, 791090, 791090-HO, 791090HO, 91090, 991074, KMN2091090, KM N20 91090, ABPN2091090, ABP N20 91090, FLT91090, KMI91090, HOR 791090, HOR791090, RF791090X, ZBH791090, KB791090, 981060, 981125, KM91090A 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:
✔ Remove the fan drive from the engine before servicing.
✔ Inspect air chamber seals and friction plate before reassembly.
✔ Use OEM repair kits: Minor 294205, Major 294315, Super 294305.
✔ Torque fan blade studs to manufacturer specifications (typical: 3/8-16 thread at 22–25 ft-lbs).
HTS 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.
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Warranty Information
