Description
KB799143X – HORTON DRIVEMASTER FAN CLUTCH (MERCEDES MBE4000)
PART NUMBER(S):
Fleet Products: KB799143X (Remanufactured) | OE: Horton 79A9131, 799143, 99131, 99143, 989131, 989143, 999131, and 999143, and Freightliner / Daimler 05-25159-025, 525159025.
DESCRIPTION:
Model: Horton Drivemaster DMA SE 21 (Remanufactured)
Vehicles: Sterling L Line (2002–2003) with Mercedes MBE4000 engines
• Back Pulley Diameter: 7.24″
• Overall Length: 10.03″
• Belt Configuration: 8K (PK type)
• Belt Groove Location: 5.76″
• Belt Count: 1
• Belt Groove Count: 8
• Fan Pilot Diameter: 2.56″
• Fan Blade Bolt Circle: 3.50″
• Fan Blade Studs: 6x, 3/8-24 Thread, 0.81″ Long
• Vertical Mounting Distance: 4.57″
• Horizontal Mounting Distance: 9.69″
• Drive Type: Air-engaged ON/OFF (DMA SE 21)
Applications:
Is this fan clutch compatible with your Mercedes MBE4000-powered Sterling truck✔ Yes—engineered for L Line models from 2002–2003, this 8K belt configuration Drivemaster delivers OE-level cooling performance with rugged construction for long service life in demanding fleet operations.
CROSS-REFERENCE(S):
05-25159-025, 1077-08079-01, 3443-99131, 3443-991312, 3443-99143, 3443-991432, 3912-79A9131, 3912-999143, 3912999143, 525159025, 799131, 799143, 79A9131, 79A9131RMAN, 79a9131, 989131, 989143, 99095, 99131, 99143, 99143-2, 999131, 999143, 999143-HO, 999143H0R, 999143HO, ABP N20 99131, ABP N20 991312, ABP N20 99143, ABP N20 991432, ABPN2099131, ABPN20991312, ABPN2099143, ABPN20991432, FLT99131, FLT991312, FLT99143, FLT991432, HOR 79A9131, HOR 999143, HOR79A9131, HOR799143, HOR999143, K799131, KM N20 99131, KM N20 991312, KM N20 99143, KM N20 991432, KMI99131, KMI991312, KMI99143, KMI991432, KM99143, KMN2099131, KMN20991312, KMN2099143, KMN20991432, R799131, RX79A9131RMAN, RX79A9131RMANRF, ZBH79A9131, ZBH799143, ZBH999143
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.
IMPORTANT INSTALLATION NOTES:
✔ Confirm fan pilot diameter and bolt circle match your OE specification.
✔ Use correct thread pattern and torque settings during installation.
✔ Ensure belt alignment is accurate for 8-groove pulley systems.
✔ Verify fan blade compatibility with Mercedes MBE4000 in Sterling trucks.
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.
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Warranty Information
