Product Description
KB799303X – HORTON DRIVEMASTER FAN CLUTCH (STERLING / CATERPILLAR C15 & C16 ACERT)
PART NUMBER(S):
Fleet Products: KB799303X (Remanufactured) | OE: Horton 79A9303, 99A9303, 999303 | Kit Masters 989303
DESCRIPTION:
Model: Horton DM Advantage On/Off Drivemaster
Vehicles: Sterling trucks (2004–2005) with Caterpillar C15 and C16 ACERT engines
• Fan Pilot Diameter: 2.56″
• Pulley Diameters: 7.54″, 8.57″
• Belt Count: 2
• Belt Groove Count: 6, 8
• Belt Groove Type: PK
• Belt Type: 6PK, 8PK
• Fan Blade Bolt Circle: 3.50″
• Fan Drive Bolt Pattern: 6x, 3/8-24 Thread, 0.81″ Long
• Engagement Type: Spring-engaged, air-disengaged
• Drive Type: Direct, mechanical
• Bearing Design: Dual bearing hub
• Weight: 47.5 lbs (Remanufactured unit)
Applications:
This Horton Drivemaster fan clutch is built for Sterling trucks powered by Caterpillar C15 and C16 ACERT engines (2004–2005). Designed for demanding vocational and long-haul service, it ensures consistent engine cooling and reliable operation in Class 8 diesel applications.
CROSS-REFERENCE(S):
79A9303, 99A9303, 999303, 989303, 99303, KM99303, HOR79A9303, HOR 79A9303, 3912-79A9303, 3443-99303, ABPN2099303, ABP N20 99303, FLT99303, KM N20 99303, KMI99303, KMN2099303
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:
✔ Verify pulley diameter and groove configuration (6PK/8PK) before installation.
✔ Confirm bolt circle and pilot hub size.
✔ Core return required for remanufactured units.
✔ Recommended for vocational and long-haul diesel Sterling applications with Caterpillar C15/C16 engines.
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 or email sales@fleet-products.com
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