Hayden 2781 Engine Cooling Fan Clutch

Hayden 2781 Heavy Duty Thermal Fan Clutch

The Hayden 2781 is a heavy duty thermal engine cooling fan clutch built for reverse-rotation applications. It is a new, non-electronic aluminum fan clutch with a 7.2-inch maximum diameter, made to meet or exceed OEM requirements for dependable cooling control.

Compatible With Dodge Dakota, Dodge Durango, and select Dodge Ram van applications, this Hayden Fan Clutch 2781 supports thermal engagement for vehicles that need consistent fan drive under load. The heavy-duty design and reverse rotation setup make it a direct-fit solution for many 1993-2004 Dodge cooling system repairs.

Key Features

• Heavy duty thermal fan clutch for engine cooling systems
• Reverse rotation design for listed Dodge applications
• Aluminum construction with raw aluminum finish
• Non-electronic, thermal-style operation
• Meets or exceeds OEM specifications
• Performance rated for demanding cooling needs
• Hex mounting type with 4 bolt holes and 4 mounting holes
• 7.2-inch clutch maximum diameter and 1.25-inch clutch-to-flange distance

Product Details

Hayden Fan Clutch 2781 is engineered as a C-type heavy duty thermal clutch for vehicles that rely on mechanical fan engagement rather than electronic control. The unit features a 3.25-inch fan bolt circle, 1.44-inch mount diameter, 1.18-inch pilot diameter, and 0.7-inch pilot depth for the specified applications. Its reverse rotation configuration is important for Dodge Dakota, Dodge Durango, and Ram van cooling systems that use a reverse-rotation fan setup.

This part cross-references Four Seasons 36715 and Gates 22171 for the same application. The Hayden 2781 part number is also commonly searched as a replacement for related OE and aftermarket references in Dodge cooling repair work.

Used For These Cooling Issues

• Engine fan not engaging at the correct temperature
• Excessive fan noise from a worn thermal clutch
• Cooling performance loss during idle or low-speed driving
• Overheating concerns in heavy-duty or towing use
• Replacement of a failed reverse-rotation fan clutch

Installation Notes

Verify reverse rotation, bolt pattern, pilot dimensions, and fan bolt circle before installation. Mounting hardware is not included, so reuse or source the correct hardware for the vehicle. Confirm the application against the vehicle’s cooling package, since some Dodge Durango and Ram van listings require specific cooling or axle configurations.

• Fits 1997-2004 Dodge Dakota, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch
• Fits 1998-2003 Dodge Durango, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch
• Fits 2002-2003 Dodge Durango, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o 3.92 Rear Axle Ratio; w/o Heavy Duty Cooling
• Fits 2003 Dodge Ram 1500 Van, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch
• Fits 1999-2003 Dodge Ram 1500 Van, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o Heavy Duty Cooling
• Fits 1999-2003 Dodge Ram 2500 Van, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o Heavy Duty Cooling
• Fits 1997-2003 Dodge Ram 3500 Van, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o Heavy Duty Cooling
• Fits 2000-2001 Dodge Durango, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o Max Cooling
• Fits 1998 Dodge B1500, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o Heavy Duty Cooling
• Fits 1995-1998 Dodge B2500, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o Heavy Duty Cooling
• Fits 1995-1998 Dodge B3500, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o Heavy Duty Cooling
• Fits 1997 Dodge Dakota, N/A; Reverse rotation; heavy duty thermal fan clutch with thread-on fan clutch
• Fits 1993-1994 Dodge B250, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o Heavy Duty Cooling
• Fits 1993-1994 Dodge B350, N/A; Reverse Rotation; Heavy Duty Thermal Fan Clutch; w/o Heavy Duty Cooling

Quality Assurance

Hayden designs this fan clutch to meet or exceed OEM requirements and performance-rated cooling standards. The new aluminum construction and thermal operation support consistent fitment and function for the listed Dodge Dakota, Dodge Durango, and Ram van applications.