Four Seasons 36773 Engine Cooling Fan Clutch

The Four Seasons 36773 is a thermal engine cooling fan clutch designed to regulate radiator airflow based on engine temperature. This viscous fan clutch automatically engages and disengages the cooling fan to optimize engine cooling efficiency while reducing parasitic power loss and fan noise when cooling demands are low.

Key Features:

• Direct replacement thermal fan clutch for specific vehicle applications
• Temperature-sensitive bi-metallic coil controls clutch engagement
• Precision-engineered to OE specifications for reliable performance
• Helps maintain optimal engine operating temperature
• Reduces unnecessary fan operation for improved fuel efficiency
• Manufactured by Four Seasons, a trusted name in automotive climate control components

This fan clutch mounts between the water pump pulley and the engine cooling fan blade assembly. As engine temperature rises, the thermal element engages the clutch to spin the fan at higher speeds, drawing more air through the radiator. When cooling demands decrease, the clutch partially disengages to reduce fan speed and noise.