Description
KB799300X - DRIVEMASTER FAN CLUTCH - STERLING / DETROIT DIESEL SERIES 60
PART NUMBER(S):
Fleet Products: KB799300X (Remanufactured) | Replaces OE: Horton 79A9300, 999300, 989300, 799300, 997103 | Kit Masters 99300, KMN2099300, KM N20 99300, KMI99300 | Alliance Truck Parts ABPN2099300, ABP N20 99300 | Freightliner FLT99300
DESCRIPTION:
Model: DriveMaster on/off fan clutch
Vehicles: Sterling all vehicle model reference applications, 2004-2007
Engines: Detroit Diesel Series 60
• Belt Configuration: 10K serpentine
• Back Pulley Diameter: 7.54"
• Overall Length: 8.93"
• Belt Groove Location: 2.55"
• Fan Pilot Diameter: 2.56"
• Fan Blade Stud Length: 0.81"
• Stud Thread Size: 0.375-24 UNF
• Fan Bolt Circle: 3.50"
• Vertical Mounting Distance: 2.12"
• Horizontal Mounting Distance: 3.18"
• Fan Drive Ratio: 1.2:1
• Fan Center Reference: 19.25"
• Offset: 15.00" fan center has 0.51" left-hand offset; 19.25" fan center has 0.67" left-hand offset
• Horton OEM Reference: 989300
• Service Reference: 79A9300 replaces 997103 and 999300
CROSS-REFERENCE(S):
KB799300X, 999300, 989300, 79A9300, 799300, 997103, KMN2099300, KM N20 99300, ABPN2099300, ABP N20 99300, FLT99300, KMI99300, 3443-99300, 99300, 3443-99300
A cross-reference listing means this part should be a suitable replacement for the part numbers listed. Please confirm all dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Confirm belt style: 10K serpentine.
✔ Verify back pulley diameter, belt groove location, fan pilot, bolt circle, stud thread and mounting distances before installation.
✔ Confirm fitment for Sterling applications with Detroit Diesel Series 60 engines.
✔ Confirm fan center and left-hand offset before installing; 15.00" and 19.25" fan center applications use different offset references.
✔ 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 REMANUFACTURED – CORE RETURN REQUIRED
Built to OEM standards — thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
Warranty Information
