Description
KB799374X – DRIVEMASTER FAN CLUTCH (VOLVO/Sterling/CATERPILLAR C15, C16)
PART NUMBER(S):
Fleet Products: KB799374X (Remanufactured) | OE: Horton 989374, Kit Masters 99374, CAT 20R-8406
DESCRIPTION:
Model: Horton DM Advantage 2-Speed (Remanufactured)
Vehicles: Volvo, Sterling (2000s era vocational & highway models)
Engines: Caterpillar C15 ACERT, C16 ACERT, Cummins ISX/Volvo variants
• Engagement Type: Pneumatic Air On/Off, Spring-Engaged (2-Speed DM Advantage)
• Fan Pilot Diameter: 2.56″
• Back Pulley Diameter: 7.54″ and 8.57"
• Belt Groove Configuration: 1V and 2V
• Fan Blade Stud Length: 20.7 mm
• Drive Type: Direct mechanical drive
• Design Features: High-load, long-haul durability with efficient cooling for Class 8 fleets
Applications:
Is this fan clutch the right fit for your heavy-duty truck✔ Yes—engineered for Volvo and Sterling trucks equipped with Cummins or Caterpillar C15/C16 ACERT engines. Designed for sustained highway and vocational use, this Drivemaster provides consistent cooling efficiency and long-term service reliability.
CROSS-REFERENCE(S):
999374, 989374, 799374, 79A9374, KB799374, 3443-99374, 3912-999374, 3912999374, 99374, 999374-HO, 999374H0R, 999374HO, ABPN2099374, ABP N20 99374, FLT99374, HOR 999374, HOR999374, KMN2099374, KM N20 99374, KMI99374, ZBH999374, FC799374A 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:
✔ Verify pulley diameter (7.52″) and fan pilot size (2.56″) before installation
✔ Check bolt circle (65 mm) and stud length (20.7 mm) for proper alignment
✔ Always replace seals, gaskets, and O-rings when installing a reman unit
✔ Torque bolts to OEM specifications to avoid vibration or imbalance
✔ Test clutch engagement under load before vehicle release
Drivemaster On/Off 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
