Product Description
KB799897X – HORTON DRIVEMASTER FAN CLUTCH (KENWORTH / PETERBILT CUMMINS ISX)
PART NUMBER(S):
Fleet Products: KB799897X (Remanufactured) | OE: Horton 79A9897, Horton 99A9897, Kit Masters 99897, 20R-8424 Cat
DESCRIPTION:
Model: Horton DM Advantage On/Off Fan Clutch (Remanufactured)
Vehicles: Kenworth (T2000, T800W, T800SH, T800B, W900S, T660) and Peterbilt (386, 387-120, 367 SBFA, 367 SFFA) with Cummins ISX engines (2008–2010)
• Clutch Style: On/Off, spring-engaged, air-disengaged
• Back Pulley Diameter: 7.31″ (184.7 mm)
• Belt Configuration: 12PK
• Belt Groove Location: 6.66″ (169.2 mm)
• Fan Pilot Diameter: 2.56″ (65.0 mm)
• Bolt Circle Diameter: 3.50″ (88.9 mm)
• Fan Blade Stud Length: 1.07″ (27.2 mm)
• Stud Thread Size: 0.375-24 UNF
• Vertical Mounting Distance: 2.21″ (56.1 mm)
• Horizontal Mounting Distance: 6.33″ (160.8 mm)
• Center of Journal Bearing to Top-Right Mounting Hole: 2.21″ (56.1 mm)
• Overall Length: 12.52″ (318.0 mm)
• Weight: 52.6 lbs (Remanufactured assembly)
Applications:
Is this Horton DM Advantage fan clutch the right fit for your Cummins ISX-powered truck? Yes—engineered for 2008–2010 Kenworth and Peterbilt heavy-duty models, this clutch provides efficient thermal control, optimized for large fan loads, and consistent cooling across demanding duty cycles.
CROSS-REFERENCE(S):
1000-799897, 1000799897, 20R-8424, 3912-79A9897, 708559AT, 79A5897, 79A9897, 79A9897-2, 79A9897RMAN, 989831, 989848, 989890, 989897, 98A9897, 99897, 999831, 999848, 999890, 999897, 99A9897, 99A9897-2, ABP N20 99897, ABPN2099897, F17-1003-5112, F17-6005-5012, F17-6005-5122, F17-6011-5120, F17-6011-5122, F1710035112, F1760055012, F1760055122, F1760115120, F1760115122, FLT99897, HOR 79A9897, HOR79A9897, HOR99A9897, K799897, KMR99897, P99A9897, R799897, RC799897, RX79A9897RMAN, RX79A9897RMANRF, ZBH79A9897, HO 79A9897, HO79A9897, HOR-79A9897, HOR98A9897, HOR79A9897-2, HOR99A9897-2, HT79A9897, K5 99897, K599897, KC99897, KM N20 99897, KMN2099897, RC 799897, FC799897, FLT99831
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:
✔ Confirm engine compatibility: Cummins ISX (2008–2010 models)
✔ Match bolt circle, fan pilot, and pulley dimensions prior to installation
✔ Fits Kenworth and Peterbilt trucks across multiple chassis models
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.
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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