Product Description
KB799326X – HORTON DRIVEMASTER REMAN FAN CLUTCH (PETERBILT 387 / CUMMINS ISX)
PART NUMBER(S):
Fleet Products: KB799326X (Remanufactured) | OE: Horton 79A9326, PACCAR F17-1000-117, Kit Masters 99326
DESCRIPTION:
Model: Horton DM Advantage – On/Off (Remanufactured)
Vehicles: Peterbilt 387-112, 387-120 (2003–2005) with Cummins ISX engines
• Clutch Type: On/Off Drivemaster – air on/off pneumatic, spring engaged
• Pulley Diameter: 7.87″
• Pulley Configuration: 12PK serpentine
• Belt Groove Location: 6.66″
• Fan Pilot Diameter: 2.56″
• Fan Drive Bolt Pattern: 6x, 3/8-24 Thread, 1.07″ Long
• Fan Blade Bolt Circle: 3.5″
• Vertical Mounting Distance: 1.26″
• Overall Length: 11.57″
• Bearing Design: Dual bearing, sealed hub
• Weight: 41.4 lbs
• Engagement Type: Direct mechanical with fail-safe Auto Lock
• Performance Features: Long-life bearings, reduced maintenance, extended uptime
Applications:
Is this fan clutch right for your Cummins-powered Peterbilt? Yes—purpose-built for Peterbilt 387-112 and 387-120 models (2003–2005) running Cummins ISX engines, this DM Advantage reman delivers OE fit, 12PK belt compatibility, and reliable on/off cooling performance for Class 8 vocational and highway fleets.
CROSS-REFERENCE(S):
79A9326, 79A9326-2, 98A9326, 99A9326, 989326, 799326, 999326, 99326, F17-1000-117, F171000117, 3443-99326, 1000-799326, 1000799326, ABP N20 99326, ABPN2099326, FC799326, FLT99326, K5 99326, K599326, KM N20 99326, KMN2099326, KMI99326, RC 799326, RC799326, HOR 79A9326, HOR79A9326, HOR79A9326-2, HOR99A9326, ZBH79A9326, R799326, K799326
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports, pulley diameters, and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Verify 12PK belt groove and pulley diameter (7.87″) match OE configuration.
✔ Ensure fan pilot diameter (2.56″) and bolt circle (3.5″, 6x) align with factory specs.
✔ Use OE torque specifications (up to 2,035 in-lbs typical for DM series).
✔ Designed for Class 8 Peterbilt/Cummins ISX platforms—check VIN before ordering.
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
WHY CHOOSE FLEET PRODUCTS | KBR - HEAVY DUTY TRUCK & TRAILER PARTS?
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- Trusted by fleets, mechanics, and B2B partners across North America
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