Product Description
KB799898X – CATERPILLAR FAN CLUTCH (Kenworth/Peterbilt/CAT C15)
PART NUMBER(S):
Fleet Products: KB799898X (Remanufactured) | OE: Horton 79A9898, 99A9898, 999898, Kit Masters: 99834, FLT99834, 707163AT
DESCRIPTION:
Model: Horton DMA Fan Clutch (On/Off)
Vehicles: Kenworth (T800W, T2000, W900L, 365 SFFA, 367 SBFA, 367 HH, 386, 388, 389, 387-120), Peterbilt (Models 365, 367, 386, 388, 389, 387-120, T800 series), with Caterpillar C15 engines (2007–2009).
• Clutch Type: On/Off, DMA series
• Condition: Available in Remanufactured (KB799898X) and New (79A9898, 99A9898)
• Engine: Caterpillar C15
• Fan Pilot Diameter: 2.56 in (65.0 mm)
• Fan Blade Bolt Circle: 3.5 in (89 mm), 6x bolt, 3/8"-24 thread, 1.07" long studs
• Pulley Diameter: 8.29 in (210.5 mm)
• Belt Compatibility: Dual belt, 6PK and 12PK
• System: Horton DMA, SE 24 style
• Dimensions: Length 21.25 in, Width 13 in, Height 13.5 in
• Weight: 51.5 lbs
Applications: Running a Caterpillar C15-powered Kenworth or Peterbilt✔ Yes—this Horton DMA series fan clutch delivers OEM-fit cooling with dual-belt capability, ensuring reliable temperature management for heavy-duty long-haul tractors. Direct drop-in replacement for Horton 79A9898/99A9898 and Kit Masters 99834 equivalents.
CROSS-REFERENCE(S):
3912-99A9898, 3912-79A9898, 549-9530, 79A5898, 79A9898, 79A9898RMAN, 79A9898RMANRF, 98A9898, 989834, 989891, 989898, 999834, 999891, 999898, 99A9898, ABP N20 99834, ABPN2099834, FC799898, FLT99834, F17-6005-1011, F1760051011, F17-6005-1061, F1760051061, F17-6005-1071, F1760051071, F17-6011-1071, F1760111071, HOR 79A9898, HOR 99A9898, HOR79A9898, HOR99A9898, K5 99834, K599834, K799898, KMI99834, KMN2099834, KM N20 99834, P99A9898, R799898, RC799898, RX79A9898RMAN, RX79A9898RMANRF, STRMCK1254-ZG070160007, ZBH79A9898, ZBH99A9898, 20R-8425, 1000-799898, 1000799898, 3443-99834, 707163AT.
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:
✔ Always verify pulley diameter and pilot size before installation.
✔ Use proper torque sequence on fan blade studs to avoid imbalance.
✔ Replace seals and grease points with every clutch installation.
✔ Return core (if applicable) in clean, rebuildable condition for credit.
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.
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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