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GROVE-MANITOWOC, KENWORTH, VOLVO, WESTERN STAR, INTERNATIONAL, VOLVO GM
Replaces 991365
When engine temperature starts to climb under load, the Horton Air Fan Clutch controls when the cooling fan engages to pull more air through the radiator. This air-operated clutch responds to system signals, engaging the fan only when cooling demand increases and disengaging it when not needed. In daily driving, that cycling helps balance engine temperature without running the fan constantly. A worn clutch can leave the fan stuck on or off, affecting temperature control and engine operation. Since cooling response depends on controlled fan engagement, the Horton 791001 keeps airflow working in sync with engine demand.
| BACK PULLEY DIAMETER | 6.51 |
| BELT CONFIGURATION | 8K |
| Belt Groove Location | 1.25 |
| BOLT CIRCLE | 3.5 |
| Fan Blade Stud Length | 15.625 |
| FAN PILOT DIAMETER | 1.99 |
| Overall Length | 6.04 |
| VERTICAL MOUNTING DISTANCE | 4.49 |
| HORIZONTAL MOUNTING DISTANCE | - |
| FRONT PULLEY DIAMETER | - |
| Country of Origin (Primary) | US |
| Harmonized Tariff Code (Schedule B) | 8483604040 |
| Harmonized Tariff Code (HTS) | 8483604040 |
| NAFTA Preference Criterion Code | B |
| Warranty Distance | 300000 |
| Warranty Distance UOM | DH |
| Warranty Special | 2500 Hours |
| Warranty Special UOM | TX |
| Warranty Time | 36 |
| Warranty Time UOM | MO |
| VMRS Code | 042003131 |
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Horton® is a world-renowned manufacturer of high-grade engine cooling solutions for the trucking industry for over 65 years. This company believes that improved airflow translates to better performance, reduced emissions, more significant fuel savings, and happy customers. Horton offers best-in-class fans, fan drives, and clutches for on-highway big rigs like heavy-, medium-, and light-duty trucks, R.V.s, buses, refuse vehicles, commercial vehicles, and other applications. This company also takes pride in its off-highway and heavy-duty products, including sweepers, agricultural tractors, mining trucks, aerial work platforms, excavators, generators, articulated vehicles, and industrial compressors. Made to operate in harsh environments, these Horton products withstand temperature extremes, dust, dirt, chemicals, as well as stop-and-go driving. For truck parts that consume less fuel, last longer, and run quieter, trust no other brand than Horton.
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