Product Description
KB799334X – HORTON DRIVEMASTER REMAN FAN CLUTCH (PETERBILT 357/378/379 / CATERPILLAR C15 & C16 ACERT)
PART NUMBER(S):
Fleet Products: KB799334X (Remanufactured) | OE: Horton 79A9334, PACCAR F17-1000-317 / F17-6013-317, Kit Masters 99334, CAT 20R-8403, M6X3050
DESCRIPTION:
Model: Horton DM Advantage – On/Off (Remanufactured)
Vehicles: Peterbilt 357-119, 378, 378-119, 379, 379-119 (2004–2007) with Caterpillar C15 and C16 ACERT engines
• Clutch Type: Horton Drivemaster On/Off – air on/off pneumatic, spring engaged
• Pulley Diameters: 7.54″ (rear), 9.04″ (front)
• Belt Configuration: Dual Pulley – 6PK & 8PK
• Fan Pilot Diameter: 2.56″
• Fan Drive Bolt Pattern: 6x, 3/8-24 Thread, 1.07″ Long
• Fan Blade Bolt Circle: 3.5″
• Weight: 52.8 lbs
• Bearing Design: Dual bearing, sealed hub
• Performance Features: Horton Auto Lock fail-safe, long-life bearings, engineered for heavy-duty Class 8 and vocational Peterbilt/Caterpillar platforms
Applications:
Is this fan clutch compatible with your Peterbilt Caterpillar ACERT truck? Yes—engineered for 2004–2007 Peterbilt 357, 378, and 379 series models running C15 and C16 ACERT engines, this Horton DM Advantage reman provides dual belt drive compatibility, OE geometry, and rugged uptime performance for vocational and highway fleets.
CROSS-REFERENCE(S):
20R-8403, 3912-79A9334, 4057300, 799334, 79A9334, 79A9334RMAN, 79A5334, 98A9334, 99A9334, 989334, 99334, 999334, F17-1000-317, F171000317, F17-6013-317, F176013317, M6X3050, ABP N20 99334, ABPN2099334, FLT99334, KMI99334, KM N20 99334, KMN2099334, RX79A9334RMAN, RX79A9334RMANRF, 3443-99334, HO 79A9334, HO79A9334, HOR 79A9334, HOR-79A9334, HOR79A9334, HOR999334, HOR 999334, ZBH79A9334, ZBH99A9334, K5 99334, K599334, KC99334, HT79A9334, FC799334, RC799334, P99A9334, K799334, R799334
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:
✔ Confirm pulley diameters (7.50″ / 9.00″) and dual belt grooves (6PK & 8PK) match OE setup.
✔ Verify Caterpillar ACERT engine family (C15/C16) before installation.
✔ Ensure bolt circle and fan pilot dimensions align with original Horton unit.
✔ Use OE torque specifications during installation for secure fit and long service life.
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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