HORTON part description

Product Description

Engine Cooling Fan Clutch

Application Summary

MACK

Features & Benefits

  • Engages only when needed
  • Provides required torque for high-airflow fans without slippage
  • Completely disengages in "off" mode for fuel and horsepower savings

Dimension A is for a 1.75-16 UNC-2A right hand thread. For aftermarket use only. Similar to 991443 except 991449 uses a right hand thread.

Pneumatic, fan clutch, engine cooling, fan drive, performance, cooling system, horsepower, on-off fan clutch

Product Attributes

CLUTCH TO FAN MOUNTING SURFACE 1.8
Fan Blade Stud Length 17.688
Flange Thickness 0.25
Heavy Duty TRUE
Hub Pilot Diameter 1.75
Number of Slots 6
Number of Studs 6
Overall Length 4.91
Pilot Diameter for Fan to Clutch 5

Additional Information

Country of Origin (Primary) US
Harmonized Tariff Code (Schedule B) 8483604040
Harmonized Tariff Code (HTS) 8483604040
NAFTA Preference Criterion Code B
Warranty Distance 100000
Warranty Distance UOM DH
Warranty Special 2500 Hours
Warranty Special UOM TX
Warranty Time 12
Warranty Time UOM MO
VMRS Code 042003131

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