Description
KB799899X – HORTON DRIVEMASTER FAN CLUTCH (KENWORTH / PETERBILT CATERPILLAR C13)
PART NUMBER(S):
Fleet Products: KB799899X (Remanufactured) | OE: Horton 79A9899, Horton 999899, Kit Masters 99899, F17-6005-2111 PACCAR
DESCRIPTION:
Model: Horton DriveMaster On/Off (Remanufactured)
Vehicles: Kenworth (T660, T800B, T800SH, T800W, W900L, W900S) and Peterbilt (365 SBFA, 365 SFFA, 384, 388) with Caterpillar C13 engines (2007–2010)
• Back Pulley Diameter: 8.56″
• Overall Length: 6.30″
• Belt Configuration: 10PK
• Belt Groove Location: Front
• Fan Pilot Diameter: 2.56″ (65.0 mm)
• Fan Blade Stud Length: 1.07″ (27.1 mm)
• Stud Thread Size: 3/8-24 UNF
• Fan Blade Bolt Circle: 3.5″
• Construction: Premium remanufacturing process with full bearing and bushing replacement
• Function: Restores OEM cooling capability and minimizes drivetrain drag
• Fitment: Direct bolt-on fit for Caterpillar C13 PACCAR platforms
Applications:
Is this Horton DriveMaster fan clutch right for your CAT C13-powered Kenworth or Peterbilt✔ Yes—purpose-built for PACCAR Class 8 trucks from 2007–2010, this reman unit delivers reliable cooling, reduced parasitic loss, and OEM-level performance at a fraction of new replacement cost.
CROSS-REFERENCE(S):
1000-799899, 1000799899, 3443-99899, 3443-998992, 799899, 799899-2, 799899RMAN, 989712, 989899, 99899, 999712, 999838, 999899, ABP N20 99899, ABP N20 998992, ABPN2099899, ABPN20998992, F17-1008-2011, F17-6005-2111, F1710082011, F1760052111, FLT99899, FLT998992, HOR799899, KM N20 99899, KM N20 998992, KMI99899, KMI998992, KMN2099899, KMN20998992, RC799899, RX799899RMAN, RX799899RMANRF, ZBH799899, 989899, 999899, F17-6005-2111, F1760052111, K799899, P999899, R799899, HO 799899, HO799899, HT799899, KC99899, FC799899, FLT99899, ZBH799899
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 back pulley diameter (8.56″) and 10PK pulley groove match application
✔ Ensure fan pilot and stud thread dimensions align with OE mount
✔ Replace worn mounting bolts or bushings during installation
✔ Torque to Horton specifications using new hardware where applicable
✔ Designed specifically for Caterpillar C13 engines in PACCAR truck platforms
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
