Product Description
HORTON DRIVEMASTER FAN CLUTCH REMAN
PART NUMBER(S):
HORTON OEM: 99A9559, 79A9559, 99A9559
KIT MASTER: 98A9559
DESCRIPTION:
Model: DriveMaster On/Off
Engines: Cummins ISX
Vehicles: Western Star models with ISX powertrain
- Fan Drive Ratio:2:1
- Back Pulley Diameter: 7.83"
- Front Pulley Diameter: 0.00"
- Overall Length: 12.60"
- Belt Configuration: 12 PK
- Belt Groove Location: 6.65"
- Bolt Circle: 3.50"
- Fan Pilot Diameter: 2.56"
- Fan Blade Stud Length: 0.81"
- Vertical Mounting Distance: 1.42"
- Horizontal Mounting Distance: 4.06"
DM Repair Kits:
- Minor Seal Repair Kit: 294346
- Major Repair Kit: 294351
- Super Repair Kit: 295568, 295575, Q299999 (Universal)
APPLICATIONS:
This Horton DriveMaster fan clutch remanufactured unit is engineered for Western Star trucks powered by Cummins ISX engines. It's a go-to part for fleets dealing with brake system overhaul, truck brake diagnostics, or HEAVY DUTY brake part upgrades. Built to deliver consistent cooling and reduce downtime in linehaul and off-highway use.
SOLD AS REMANUFACTURED – CORE RETURN REQUIRED
Built to OEM standards — thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
CROSS-REFERENCE(S):
Confirm whether your system uses a single-speed or two-speed fan clutch.
21596045, 22113077, 3443-99559, 3912-79A96442, 706304AT, 79A9559, 79A9559-2, 79A9595, 79A9644-2, 98A9552-2, 98A95522, 98A9559, 98A9595, 98A9644-2, 98a9559, 99A8110, 99A9559, 99A9559-2, 99A9644-2, 99a9559, ABP N20 99559, ABPN2099559, F17-1014M03, F17-6014M06, F17-6017M28, FC7996442, FLT99559, HOR79A9595, HOR98A9595, HOR99A8110, HOR99A9595, KM N20 99559, KMI99559, KMN2099559, RX79A9644-2RMAN, RX79A9644-2RMANRF, RX79A96442RMAN, RX79A96442RMANRF
A cross-reference listing means this compressor should be a suitable replacement for the part numbers listed. Please confirm all dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
Verify the mounting dimensions and fan blade compatibility before installation
Recommended for use in HEAVY DUTY truck applications with Cummins ISX engines
Ensure the correct belt configuration and pulley fitment to avoid issues during operation
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, call 1-877-243-0442 or email sales@fleet-products.com
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