Hayden Automotive 3291 Severe Duty Electronic Fan Clutch

The Hayden Automotive 3291 is a severe-duty electronic engine cooling fan clutch designed for precision cooling control in demanding applications. This electronically-controlled fan clutch utilizes ECM/PCM signals to regulate fan engagement based on coolant temperature, transmission oil temperature, intake manifold temperature, A/C pressure, and engine oil temperature.

How It Works:

When the solenoid is energized, it opens a spring-loaded valve that allows silicone drive fluid to flow from the storage reservoir to the working area of the unit, increasing fan speed for enhanced cooling. When de-energized, the valve closes and blocks fluid flow to the working area, reducing fan speed and improving fuel economy.

Key Specifications:

• Clutch Type: Electronic viscous
• Rotation: Reverse
• Material: Aluminum construction
• Clutch Maximum Diameter: 7.48 inches
• Bolt Thread: 5/16 inch - 18
• Bolt Hole Quantity: 4
• Fan Bolt Circle: 3.81 inches
• Distance from Clutch to Mounting Flange: 1.07 inches
• Mount Diameter: 1.44 inches
• Mounting Type: HEX

Features:

• OE performance, fit, and appearance
• Precision machined for reliable operation
• Designed, tested, and built by application
• Out-of-box installation ready
• Meets or exceeds OEM specifications

This severe-duty fan clutch is engineered to provide optimal cooling performance while reducing parasitic power loss when full cooling is not required. Hayden Automotive has been the leader in performance cooling products for over 50 years, ensuring quality and reliability.

OEM Cross-Reference Numbers: 55056932AB, 55056932AC, 55056932AE, 55056932AF, 55056932AG, 68068481AA, 68155609AA, 68155609AB, 216094, 22345, 281416, 46114, 622009, 922181, A81735