Description
HORTON 79A9815-2 is a remanufactured engine cooling fan clutch used on heavy-duty trucks.
Part Overview
Type: Engine Cooling Fan Clutch
Model: DM Advantage Two-Speed (DMA2S)
Condition: Remanufactured (core return typically required)
OEM Reference: 989815
Key Specs / Features
Two-speed operation (low/high fan engagement) [catalog.hortonww.com]
Designed for heavy-duty diesel applications (Freightliner, CAT, etc.)
Supports multiple fan sizes (approx. 15″, 19″, 20″ fan centers)
Typically around 70 lbs
High-torque design for large cooling fans
Cross References
Common interchangeable / related numbers:
79A9815
989815
20R-8419 (Caterpillar)
FLT99815 (Navistar)
3912-79A9815 (Mack)
Typical Engine Pairings (Industry Use)
While exact fitment depends on spec, this model is commonly associated with:
CAT C-series engines (C10, C12, C13, C15)
Navistar MaxxForce / older DT-series
PACCAR MX / Cummins ISX platforms (in similar Horton 2-speed setups)
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