Hayden 2900 Engine Cooling Fan Clutch

Hayden 2900 Severe Duty Fan Clutch

The Hayden 2900 is a thermal engine cooling fan clutch built for severe-duty service and reverse rotation applications. It is a new, non-electronic aluminum unit that meets or exceeds OEM requirements for selected Dodge Ram trucks.

Compatible With 2003-2008 Dodge Ram 1500, Ram 2500, and Ram 3500 applications listed below, this Hayden Fan Clutch is built around a heavy-duty thermal design for demanding cooling needs. The 2900 part number is also cross-referenced to Dayco 22620 for the same application.

Key Features

• Brand: Hayden Fan Clutch
• Part Number: 2900
• Severe duty thermal clutch for reverse rotation systems
• Aluminum construction with raw aluminum finish
• Non-electronic design
• Heavy-duty C-type clutch construction
• Meets or exceeds OEM specifications
• Performance rated for demanding cooling service
• Thermal engagement for temperature-based fan control
• Mounting type: HEX
• Fan bolt circle: 3.25 in. (82.6 mm)
• Mount diameter: 1.44 in. (36 mm)
• Pilot diameter: 1.18 in. (30 mm)

Detailed Description

The Hayden 2900 fan clutch is engineered for severe-duty cooling performance in reverse rotation setups. Its thermal operation helps regulate fan engagement based on temperature, supporting consistent engine cooling under load, towing, and stop-and-go driving. The aluminum body and heavy-duty clutch type are suited to demanding truck applications, while the OEM-matching fitment details help simplify replacement selection for Dodge Ram 1500, Ram 2500, and Ram 3500 models.

This part number 2900 is a direct replacement option for vehicles that require a reverse rotation, severe duty thermal engine cooling fan clutch. It cross-references Dayco 22620 and is listed for 2003-2008 Dodge Ram 1500, Ram 2500, and Ram 3500 applications with heavy duty cooling where specified.

What It Helps Address

• Engine overheating caused by a worn or weak fan clutch
• Reduced fan engagement in severe-duty driving conditions
• Cooling performance loss during towing or heavy load use
• Noise or inconsistent operation from a failing thermal clutch
• Replacement needs for reverse rotation cooling fan systems

Installation Notes and Tips

Verify reverse rotation, mounting style, pilot dimensions, and fan bolt circle before installation. This Hayden 2900 uses a HEX mounting type, 4 bolt holes, and 5/16-18 hole thread specification. Mounting hardware is not included, so reuse or source the correct hardware as needed. Confirm the vehicle’s cooling package and application notes before ordering, especially on 2003-2004 Ram trucks with heavy duty cooling and 2005-2008 Ram 2500 and Ram 3500 severe duty applications.

• Fits 2005-2008 Dodge Ram 2500, N/A, reverse rotation severe duty thermal engine cooling fan clutch.
• Fits 2005-2008 Dodge Ram 3500, N/A, reverse rotation severe duty thermal engine cooling fan clutch.
• Fits 2003-2004 Dodge Ram 1500, N/A, reverse rotation; severe duty thermal fan clutch; w/ heavy duty cooling.
• Fits 2003-2004 Dodge Ram 2500, N/A, reverse rotation; severe duty thermal fan clutch; w/ heavy duty cooling.
• Fits 2003-2004 Dodge Ram 3500, N/A, reverse rotation; severe duty thermal fan clutch; w/ heavy duty cooling.

Quality Assurance

The Hayden Fan Clutch line is built for replacement applications that require OEM-level fit and function. This Hayden 2900 is new, performance rated, and listed as meeting or exceeding OEM requirements for the specified Dodge Ram applications.