Hayden 2784 Engine Cooling Fan Clutch

Hayden 2784 Severe Duty Fan Clutch

Hayden Fan Clutch 2784 is a thermal, reverse-rotation engine cooling fan clutch built for severe-duty and truck applications. It uses an aluminum construction and a flange mount to support dependable fan engagement in demanding cooling systems.

Key Features

• Thermal, non-electronic fan clutch for mechanical cooling control
• Severe-duty D-style truck fan drive for heavy-use applications
• Reverse rotation design for the correct fan direction in listed vehicles
• Aluminum housing with raw aluminum finish
• Flange mounting with 4 bolt holes and M10 x 1.5 hole thread
• Meets or exceeds OEM requirements and is performance rated
• New replacement part with 6.45 in. maximum diameter and 3.66 in. overall height

Product Details

This Hayden fan clutch 2784 is built for vehicles that need controlled fan engagement under load, especially Chevrolet and GMC trucks, vans, and SUVs with reverse-rotation cooling systems. It cross-references Dorman - HELP 47264 and Four Seasons 36955 for the same application. The severe-duty thermal design helps maintain airflow response in demanding driving conditions, including towing, hauling, and stop-and-go operation. Compatible applications include 1987-2000 Chevrolet and GMC models such as C2500, K3500, Express 3500, Savana 3500, Astro, Safari, and related platform vehicles listed in the fitment data.

Common Cooling Issues It Addresses

• Engine temperature rise during idle or low-speed driving
• Reduced fan engagement in a reverse-rotation cooling system
• Cooling performance loss under towing or heavy-load use
• Fan clutch wear that can affect airflow consistency
• Fitment problems when replacing an OE-style severe-duty thermal clutch

Installation Notes and Tips

Verify reverse rotation, flange mounting, bolt pattern, and pilot dimensions before installation. This part uses 4 bolt holes, a 3.25 in. fan bolt circle, and a 2.46 in. mount diameter. Mounting hardware is not included. Confirm clearance with the fan and surrounding components, and match the vehicle’s cooling-system requirements before service. Fits 1992-2000 Chevrolet C2500, N/A; Fits 1992-2000 Chevrolet C3500, N/A; Fits 1996-2000 Chevrolet Express 3500, N/A; Fits 1992-2000 GMC C2500, N/A; Fits 1992-2000 GMC C3500, N/A; Fits 1996-2000 GMC Savana 3500, N/A.

Quality Assurance

Hayden lists this fan clutch as new, performance rated, and meeting or exceeding OEM specifications. The severe-duty thermal construction is intended for demanding cooling applications in Chevrolet and GMC trucks, vans, and SUVs.