Hayden 6601 Engine Cooling Fan Clutch

Hayden 6601 Heavy Duty Thermal Fan Clutch

The Hayden 6601 is a heavy duty thermal engine cooling fan clutch built for standard-rotation applications that need consistent fan engagement. It uses an aluminum construction, a flange mount, and a non-electronic thermal design to support cooling performance in Nissan and Suzuki applications.

Part number 6601 is a direct-fit style replacement for select Nissan Frontier, Xterra, Pathfinder, NV1500, NV2500, NV3500, and Suzuki Equator models. It meets or exceeds OEM requirements and is performance rated for demanding cooling-system service.

Key Features

• Heavy duty thermal fan clutch for engine cooling control
• Aluminum housing with raw aluminum finish
• Non-electronic design with standard rotation
• Flange mounting style with 4 bolt holes and 4 mounting holes
• 7.01 in. maximum diameter and 3.56 in. overall height
• Fan bolt circle: 6.48 in. (164.6 mm)
• Mount diameter: 3.07 in. (78 mm)
• Meets or exceeds OEM specifications
• Performance rated for heavy use applications

Product Details

Hayden Fan Clutch 6601 is a thermal engine cooling fan clutch designed to regulate fan speed based on temperature demand. The heavy-duty construction and aluminum body support reliable operation in vehicles that rely on mechanical fan control for cooling efficiency. This part number 6601 is commonly searched as a replacement fan clutch for Nissan Frontier cooling system service, as well as Nissan Xterra, Pathfinder, and NV van applications.

This part cross-references Dorman - HELP 46070 for the same application.

What It Helps Address

• Cooling fan engagement that is delayed or inconsistent
• Engine temperature rise during idle or low-speed driving
• Reduced airflow through the radiator and condenser
• Noise or wear associated with a failing fan clutch
• Cooling-system performance concerns in towing or heavy-duty use

Installation Notes and Tips

Verify the mounting flange, bolt pattern, pilot dimensions, and rotation before installation. This Hayden 6601 uses a 4-bolt flange mount with M6 x 1.0 hole threads, a 1.25 in. pilot diameter, and a 0.45 in. pilot depth. Mounting hardware is not included, so reuse or source the correct hardware separately if needed. Confirm clearance around the fan assembly and check the fan bolt circle and overall diameter during replacement.

Compatible With 2005-2019 Nissan Frontier, N/A; 2005-2015 Nissan Xterra, N/A; 2005-2012 Nissan Pathfinder, N/A; 2012-2019 Nissan NV1500, N/A; 2012-2019 Nissan NV2500, N/A; 2012-2019 Nissan NV3500, N/A; 2020-2021 Nissan NV1500, N/A; 2020-2021 Nissan NV2500, N/A; 2020-2021 Nissan NV3500, N/A; 2009-2012 Suzuki Equator, N/A.

Quality Assurance

Hayden designs this fan clutch to meet or exceed OEM requirements and rate it for performance use. The 6601 is a new, non-electronic thermal fan clutch built for direct replacement applications in select Nissan and Suzuki cooling systems.