Hayden 2901 Engine Cooling Fan Clutch

Hayden 2901 Severe Duty Fan Clutch

The Hayden 2901 is a thermal engine cooling fan clutch built for severe-duty service and reverse-rotation applications. It is a non-electronic, aluminum unit that meets or exceeds OEM requirements and is performance rated for demanding truck cooling systems.

Key Features

• Severe duty thermal fan clutch for truck cooling applications
• Reverse rotation design for the correct fan drive direction
• Aluminum construction with raw aluminum finish
• Non-electronic thermal operation
• 4-bolt mounting pattern with 5/16-18 bolt holes
• 6.45 in. maximum clutch diameter and 4.22 in. overall height
• Meets or exceeds OEM specifications
• Performance rated for heavy-duty use

Product Details

Hayden Fan Clutch 2901 is part of the Hayden Fan Clutch line, a product family focused on replacement cooling components for vehicles that rely on mechanical fan drive control. This severe duty thermal fan clutch uses a hex mounting type, a 3.25 in. fan bolt circle, and a 1.44 in. mount diameter to support proper fitment in the intended cooling assembly. The reverse rotation configuration is critical for 2003-2004 Dodge Ram 1500, 2003-2004 Dodge Ram 2500, and 2003-2004 Dodge Ram 3500 models equipped with heavy duty cooling and a severe duty thermal fan clutch setup. This part cross-references Dayco 22620 and Dorman - HELP 46020 for the same application.

Common Cooling Issues This Part Addresses

• Fan clutch slip that reduces airflow through the radiator
• Engine temperature rise during towing or heavy load operation
• Weak fan engagement at operating temperature
• Cooling performance loss in severe-duty truck use
• Noisy or inconsistent mechanical fan drive operation

Installation Notes and Tips

Verify reverse rotation, bolt pattern, pilot dimensions, and overall height before installation. This Hayden 2901 fan clutch uses a 4-bolt mounting layout and does not include mounting hardware, so reuse or source the correct hardware separately. Confirm the vehicle is equipped with heavy duty cooling and the correct thermal fan clutch configuration before replacement. Proper alignment of the fan bolt circle and mounting flange helps ensure correct operation in Dodge Ram 1500, Ram 2500, and Ram 3500 applications.

Quality Assurance

Hayden 2901 is a new, performance-rated replacement fan clutch that meets or exceeds OEM specifications for the listed applications. Its severe duty design and thermal operation support dependable cooling-system service in the intended Dodge Ram fitments.