Description
KB799103X – HORTON DRIVEMASTER FAN CLUTCH (CATERPILLAR 3406/C15/C16)
PART NUMBER(S):
Fleet Products: KB799103X (Remanufactured) | OE: Horton 79A9103, 99A9103, Peterbilt 05-25159-014
DESCRIPTION:
Model: Horton DMA SE 21 On/Off (Remanufactured)
Vehicles: Peterbilt Conventional, 357-111, COE, 379-127, 375, 377, 379, 378, 357-119, 378-119, 379-119 (1980–2002) with Caterpillar 3406, 3406B, 3406 ATAAC, 3406E, C15, C16 engines
• Pulley Diameter: 7.50″, Overall length: 7.28"
• Fan Pilot Diameter: 2.56″
• Bolt Circle: 3.50″
• Belt Configuration: 4-Groove, Type V
• Belt Count: 4
• Fan Drive Bolt Pattern: 2.56″ Pilot, 3.50″ BC, 6x, 3/8-24 Thread, 1.07″ Long
Applications:
Is this fan clutch compatible with your Caterpillar-powered Peterbilt✔ Yes—engineered for 3406, C15, and C16 engines in models like 357, 375, 377, 378, and 379 (1980–2002), this Horton DMA SE 21 delivers reliable on/off cooling control with OEM fitment and proven durability in heavy-duty applications.
CROSS-REFERENCE(S):
79A9103, 99A9103, HOR79A9103, HOR999103, 999103, 05-25159-014, 99103, KM99103, 989103, 104905, 79A5103, 790007, 1077-07767-01, 1077-07767-04, 1093-07768-04, 3443-99103, ABP N20 99103, FLT99103, KM N20 99103, KMI99103, 20R-8388, 3912-79A9103, 799103, 79A9103RMAN, K799103, R799103, RF799103X, 525159014, ABPN2099103, KMN2099103, RX79A9103RMAN, RX79A9103RMANRF, 99a9103, KB799103, Alliance Truck Parts ABP N20 99103, Alliance Truck Parts KM N20 99103, Daimler Truck North America KM N20 99103, Peterbilt FLT99103A 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 correct belt groove type and count before installation.
✔ Ensure pilot diameter and bolt circle match the fan blade hub specifications.
✔ Replace worn bearings, seals, and friction lining during installation for maximum service life.
✔ Follow manufacturer torque specifications for all fasteners.
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
