Description
KB799504X - HORTON DRIVEMASTER ON/OFF FAN CLUTCH FOR KENWORTH/PETERBILT PACCAR PX-8
PART NUMBER(S):
Fleet Products: KB799504X (Remanufactured) | Replaces OE: Horton: 79A9504, 98A9504, 99A9504, 989504, 999504 | PACCAR: F17-1014M12, F17-6005-8011 | Kit Masters: 99504, 99627, KMN2099627 | Alliance: ABPN2099504, ABPN2099627 | Fleetrite: FLT99504, FLT99627
DESCRIPTION:
Model: Horton DriveMaster Air-Engaged On/Off Fan Clutch
Vehicles: Kenworth T300; Peterbilt 330, 335, 335 FEPTO, 340, and 340 FEPTO trucks from 2007-2010
Engines: PACCAR PX-8
• Back Pulley Diameter: 5.78"
• Belt Configuration: 1 × 8-rib serpentine belt
• First Belt Groove Distance: 2.25"
• Fan Pilot Diameter: 2.56"
• Fan Blade Bolt Circle: 3.50"
• Fan Blade Stud Length: 1.07"
• Fan Blade Stud Thread: 3/8"-24
• Vertical Mounting Distance: 2.01"
• Horizontal Mounting Distance: 4.41"
• Overall Length: 6.85"
CROSS-REFERENCE(S):
799504, 799504-2, 799627, 989627, 999627, F171014M12, F1760058011, KM N20 99627, P999504, K799504, R799504, RX799627RMANRF, ZBH999504, FC799504, RC799504
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Confirm the 5.78" back pulley diameter, 8-rib belt configuration, and 2.25" first-groove position.
✔ Verify the 2.56" fan pilot, 3.50" bolt circle, fan-stud dimensions, mounting distances, overall length, and fan clearance.
✔ Inspect the belt, pulley, hub bearings, fan, air line, seals, and mounting surfaces for wear or damage.
✔ Torque all fan-clutch, pulley, fan-blade, and mounting hardware to Horton or PACCAR specifications.
✔ Verify belt alignment, air-system sealing, clutch engagement, disengagement, and fan-to-shroud clearance.
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.
Warranty Information
