Description
KB799198X – HORTON DRIVEMASTER FAN CLUTCH (KENWORTH / CUMMINS ISX)
PART NUMBER(S):
Fleet Products: KB799198X (Remanufactured) | OE: Horton 79A9198, 99A9198, Paccar F17-1000-101
DESCRIPTION:
Model: Horton DM Advantage On/Off Drivemaster
Vehicles: Kenworth T600 (2002–2004) with Cummins ISX engines
• Fan Pilot Diameter: 2.56″ (convertible to 5.00″ with adapter)
• Pulley Diameter: 7.91″
• Belt Count: 1
• Belt Groove Count: 12
• Belt Groove Type: PK
• Belt Type: 12PK
• Fan Blade Bolt Circle: 3.50″
• Fan Drive Bolt Pattern: 2.56″ Pilot, 3.50″ BC, 6x, 3/8-24 Thread, 1.07″ Long
• Engagement Type: Spring-engaged, air-disengaged
• Drive Type: Direct, mechanical
• Torque Capacity: 5,000 in-lbs+
Applications:
Is this fan clutch compatible with your Cummins ISX-powered Kenworth✔ Yes—designed for T600 models (2002–2004), this Horton Drivemaster delivers OE torque handling and durability with drop-in fitment. Engineered with bearing technology and a convertible pilot hub, it ensures extended service life in Class 8 trucks.
CROSS-REFERENCE(S):
79A9198, 99A9198, 999198, 989198, 799198, 99198, 99198-RM, KM99198, F17-1000-101, F17-6013-101, HOR99A9198, HOR 99A9198, HOR98A9198, ZBH99A9198, 3912-99A9198, FLT99198, KMI99198, ABPN2099198, ABP N20 99198, KMN2099198, KM N20 99198, 3443-99198A 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 verify pulley diameter and pilot size before installation.
✔ Ensure correct belt groove alignment (12PK) for Cummins ISX brackets.
✔ Replace seals and adapters when upgrading to 5.00″ pilot style.
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
