Autopart International 1604-584217 Engine Cooling Fan Clutch

The Autopart International 1604-584217 is an engine cooling fan clutch designed to regulate radiator airflow and maintain optimal engine operating temperature. This thermal fan clutch automatically engages and disengages the cooling fan based on engine temperature, improving fuel efficiency and reducing unnecessary fan noise during cold operation.

Key Features:

• Temperature-sensitive viscous coupling for automatic fan speed control
• Helps maintain proper engine cooling system efficiency
• Reduces parasitic horsepower loss when full cooling is not required
• Direct-fit replacement for specific vehicle applications
• Engineered to meet or exceed OEM specifications

This fan clutch mounts between the water pump pulley and the engine cooling fan blade assembly. When the engine reaches operating temperature, the thermal-sensitive bi-metallic spring activates the clutch mechanism, engaging the fan to draw air through the radiator. As temperatures decrease, the clutch disengages to reduce fan speed and noise.