Hayden 2799 Engine Cooling Fan Clutch

Hayden 2799 Severe Duty Thermal Fan Clutch

The Hayden 2799 is a severe duty thermal engine cooling fan clutch built for demanding truck and van cooling systems. It uses an aluminum construction, standard rotation, and a flange mount layout to support consistent fan engagement in heavy-duty service.

Compatible With Ford F-250, Ford F-350, Ford E-350 Econoline, Chevrolet C/K truck applications, and GMC heavy-duty platforms where this thermal fan clutch configuration is specified.

Key Features

• Thermal fan clutch with severe duty truck fan drive design
• Standard rotation for direct replacement applications
• Aluminum body with raw aluminum finish
• Flange mounting type with 4 bolt and 4 mounting holes
• 6.45 in. maximum clutch diameter and 3.66 in. overall height
• 5/16-18 bolt thread hole specification
• Non-electronic design for mechanical cooling fan systems
• Meets or exceeds OEM requirements
• Performance rated for severe duty use

Detailed Description

Hayden Fan Clutch 2799 is a new thermal fan clutch engineered for severe duty cooling demands. The unit features a 6.45-inch clutch diameter, 2.58-inch mount diameter, 0.75-inch pilot diameter, and 0.63-inch pilot depth, with a 3.25-inch fan bolt circle. Its aluminum construction and flange mount design support reliable fitment in standard-rotation cooling systems that use a mechanical fan drive.

This part cross-references Four Seasons 36996 and Gates 22052 for the same application. It is listed across a broad range of Ford, Chevrolet, and GMC truck and van platforms, including Ford F-250 HD, Ford F-350, Ford E-350 Econoline, Chevrolet G20, Chevrolet K5 Blazer, and GMC K3500 applications. The Hayden 2799 part number is also commonly searched as 2799 for replacement lookup and catalog matching.

What It Helps Address

• Engine temperature rise during towing or heavy load operation
• Reduced fan engagement in severe duty cooling systems
• Cooling fan drive noise caused by a worn clutch
• Inconsistent airflow at idle or low vehicle speed
• Replacement needs on aging Ford, Chevrolet, and GMC truck platforms

Installation Notes and Tips

Verify standard rotation, flange mounting, bolt pattern, and pilot dimensions before installation. Confirm the fan bolt circle, bolt thread size, and overall height against the original unit to ensure proper clearance. Mounting hardware is not included, so reuse or source the correct hardware separately as needed. Always inspect the fan blades, water pump area, and surrounding cooling components during replacement.

Quality Assurance

Hayden 2799 is a new, performance-rated severe duty thermal fan clutch that meets or exceeds OEM requirements. Its non-electronic design and truck-duty construction make it a direct replacement choice for specified cooling fan clutch applications.