Hayden 2811 Engine Cooling Fan Clutch

Hayden 2811 Severe Duty Fan Clutch

The Hayden 2811 is a thermal engine cooling fan clutch built for severe-duty and truck fan drive applications. It uses an aluminum construction, standard rotation, and a non-electronic design to support consistent fan engagement in demanding cooling systems.

Key Features

• Severe duty thermal fan clutch for truck and heavy-duty cooling systems
• Aluminum body with raw aluminum finish
• Standard rotation, non-electronic design
• 4-bolt / 4-mount-hole configuration with hex mounting type
• Meets or exceeds OEM requirements
• Performance rated for demanding engine cooling service
• Part number 2811 for easy identification

Product Details

Hayden Fan Clutch 2811 is engineered as a D-type severe duty fan drive for engines that need controlled airflow under load. With a 6.45-inch maximum diameter, 3.66-inch overall height, 1.88-inch mount diameter, and 1.18-inch pilot diameter, it is built around a compact thermal clutch layout for proper fan engagement in heavy-use cooling systems. The 3/8-16 hole thread, 3.81-inch fan bolt circle, and 1.2-inch distance from clutch to mounting flange provide the dimensional details needed for accurate replacement selection. This Hayden 2811 fan clutch is a direct-fit style replacement for applications that call for a severe-duty thermal clutch and standard rotation.

This part cross-references Dorman HELP 46044 and Gates 22619 for the same application.

Vehicle Fitment Search Terms

Compatible with vehicle-specific cooling system searches for Hayden 2811, including heavy-duty truck fan clutch replacement queries and severe duty thermal fan clutch replacement searches. If you are comparing Hayden 2811 against OE-style fan clutch options for a truck or work vehicle cooling repair, verify the mounting dimensions, bolt circle, and rotation before installation.

Common Cooling Issues It Addresses

• Engine overheating caused by weak fan clutch engagement
• Excessive fan slip in severe-duty cooling operation
• Cooling fan performance loss under load or high-temperature driving
• Noisy or inconsistent thermal fan clutch operation
• Replacement needs for worn truck fan drive assemblies

Installation Notes and Tips

Confirm standard rotation, bolt pattern, pilot dimensions, and overall height against the original unit before installation. Mounting hardware is not included, so reuse or source the correct hardware separately as needed. Because this is a thermal, non-electronic fan clutch, make sure the vehicle uses a mechanical clutch design and that the fan blade and mounting flange match the specified dimensions.

Quality Assurance

Hayden lists this fan clutch as new, performance rated, and meeting or exceeding OEM requirements. The aluminum construction and severe-duty design support replacement use in demanding cooling applications where accurate fitment and thermal response are important.