Description
KB799877X - DRIVEMASTER FAN CLUTCH - INTERNATIONAL / CUMMINS ISX
PART NUMBER(S):
Fleet Products: KB799877X (Remanufactured) | Replaces OE: Horton 99A9877, 98A9877, 999877, 989877, 999239, 989239, 99239, 99A9877, 999877, K799877, R799877 | International / Navistar 3574140C93, 3574140C94, FLT99877 | Kit Masters 99877, KMN2099877, KM N20 99877, KMI99877 | Alliance Truck Parts ABPN2099877, ABP N20 99877 | Other 3443-99877
DESCRIPTION:
Model: DriveMaster on/off fan clutch
Vehicles: International 5000 Series and PayStar applications, 2002-2009
Engines: Cummins ISX
• Belt Configuration: 12PK serpentine
• Back Pulley Diameter: 7.28"
• Overall Length: 11.91"
• Belt Groove Location: 6.66"
• Fan Pilot Diameter: 2.56"
• Fan Blade Stud Length: 0.81"
• Fan Bolt Circle: 3.50"
• Vertical Mounting Distance: 5.98"
• Horizontal Mounting Distance: 6.86"
• Fan Drive Ratio: 1.3:1
• Fan Center Reference: 20.00"
• Fan Blade Reference: 9 blades, 32.01" fan diameter
• Fan Blade Service Reference: 991813253
• Horton OEM Reference: 98A9877
• Service Reference: 99A9877 replaces DriveMaster 999877 and fan drive 999239
• Related Replacement Option: 99A9957 is a DM Advantage two-speed option and may require fan blade change
CROSS-REFERENCE(S):
KB799877X, 99A9877, 98A9877, 999877, 989877, 999239, 989239, 99239, 99a9877, 3574140C93, 3574140C94, KMN2099877, KM N20 99877, ABPN2099877, ABP N20 99877, FLT99877, KMI99877, 3443-99877, 99877, K799877, R799877
A cross-reference listing means this part should be a suitable replacement for the part numbers listed.
IMPORTANT INSTALLATION NOTES:
✔ Confirm belt style: 12PK serpentine.
✔ Verify back pulley diameter, belt groove location, fan pilot, bolt circle and fan blade stud length before installation.
✔ Confirm fitment for International 5000 Series / PayStar applications with Cummins ISX engines.
✔ Do not substitute two-speed 99A9957 unless the application is being converted and the required fan blade change is confirmed.
✔ Inspect fan blades, belts, pulleys, air supply lines and solenoid operation before reinstalling a remanufactured clutch.
✔ After installation, confirm fan clutch engagement, air control response and fan-to-shroud clearance before returning the vehicle to service.
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 RMANUFACTURED – CORE RETURN REQUIRED
Built to OEM standards — thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
Warranty Information
