US Motor Works 22339 Electro-Viscous Fan Clutch

The US Motor Works 22339 is an electro-viscous fan clutch designed as a direct replacement for heavy-duty diesel truck applications. This electronically controlled fan clutch regulates engine cooling by engaging and disengaging the radiator fan based on temperature and load conditions, optimizing engine performance while reducing parasitic power loss and fan noise during low-demand driving.

Key Features:

• Electro-viscous design with electronic control for precise temperature management
• Direct-fit replacement for 2001-2014 Ford F-Series Super Duty with 6.7L diesel engines
• Reduces unnecessary fan engagement to improve fuel economy and lower noise levels
• Heavy-duty construction engineered for commercial and severe-duty applications
• Restores proper cooling system operation when factory clutch fails or becomes sluggish

This fan clutch is essential for maintaining optimal engine operating temperatures in demanding conditions such as towing, hauling heavy loads, and stop-and-go traffic. US Motor Works quality-tests their fan clutches to ensure reliable performance and durability under extreme heat and stress.