Product Description
KB799044X – DRIVEMASTER FAN CLUTCH (WESTERN STAR / CATERPILLAR 3406, 3406E)
PART NUMBER(S):
Fleet Products: KB799044X (Remanufactured) | OE: Horton 79A9044, 989044, 999044, Western Star 20822-3539, Kit Masters 99044
DESCRIPTION:
Model: Horton DMA SE 21 (Remanufactured)
Vehicles: Western Star (2000–2005) with Caterpillar 3406, 3406E engines
• Back Pulley Diameter: 6.25″ (158.7 mm)
• Front Pulley Diameter: 9.5″
• Belt Configuration: 4-V Groove
• Fan Pilot Diameter: 2.56″
• Fan Blade Bolt Circle: 3.5″
• Fan Blade Studs: 6x, 3/8-24 Thread, 0.81″ Long
Applications: Is this fan clutch compatible with your Caterpillar 3406-powered Western Star? Yes—engineered for 2000–2005 Western Star models, this Horton Drivemaster delivers consistent cooling with OEM drop-in fitment and proven belt drive performance.
CROSS-REFERENCE(S):
05-25159-011, 0525159011, 079A9044, 079A9044RMAN, 079A9044H0R, 079A9026, 079A9027, 20822-3539, 208223539, 3443-99044, 799044, 98A9044, 989044, 99044, 99A9044, ABP N20 99044, ABPN2099044, FLT99044, KM N20 99044, KMN2099044, KMI99044, HOR 79A9044, HOR79A9044, HOR98A9044, HOR99A9044, 3912-79A9044, 3912-99A9044, 1093-07870-01, 1093-07870-02
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:
✔ Inspect pulley grooves for wear before installation to prevent premature belt damage.
✔ Verify fan blade bolt torque matches OEM specifications.
✔ Ensure pilot and bolt circle diameters match your fan hub exactly.
✔ Check for correct belt alignment after mounting to avoid vibration.
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.
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, Call: 1-877-243-0442 | Email: sales@fleet-products.com
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