KB799073X | Drivemaster Fan Clutch (Freightliner/CAT 3406)

KB799073X – HORTON DRIVEMASTER FAN CLUTCH (CATERPILLAR 3406)

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PART NUMBER(S):
Fleet Products: KB799073X (Remanufactured) | OE: Horton 79A9073, 989073, 999073

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DESCRIPTION:

Model: Horton DMA SE 21 On/Off (Remanufactured)
Vehicles: Freightliner FLD, FLH (2000–2005) with Caterpillar 3406 engines
• Back Pulley Diameter: 7.50″ (190.5 mm)
• Front Pulley Diameter: 9.00″
• Belt Configuration: 8PK/6PK Groove
• Belt Count: 2
• Fan Pilot Diameter: 2.56″
• Fan Blade Bolt Circle: 3.50″
• Fan Blade Studs: 6x, 3/8-24 Thread, 0.81″ Long
• Overall Length: 8.53″
• Engagement Type: Air-engaged ON/OFF
• Drive Type: DMA SE 21

Applications:
Is this fan clutch compatible with your Caterpillar 3406-powered Freightliner✔ Yes—engineered for FLD and FLH models from 2000–2005, this DMA SE 21 delivers dependable cooling performance with direct OEM drop-in fitment for Caterpillar 3406 engines.

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CROSS-REFERENCE(S):

799073, 79A5073, 79A9073RMAN, 989073, 99073, 999073, HOR 79A9073, HOR79A9073, ZBH79A9073, KMN2099073, KM N20 99073, ABPN2099073, ABP N20 99073, FLT99073, KMI99073, 3443-99073, KM99073, 79A9073-2, K5 99073, K599073, HOR79A9073-2, HOR99A9073, 79a9073

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.

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IMPORTANT INSTALLATION NOTES:
✔ Conversion to 2-speed configuration requires Horton spacer PN 994100 to prevent interference.
✔ Always verify belt configuration (8PK/6PK groove) matches the existing setup before installation.
✔ Ensure fan pilot diameter and bolt circle dimensions match OEM specifications for Caterpillar 3406 applications.
✔ Torque all fasteners to manufacturer specifications and check pulley alignment before operating.

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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

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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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