Hayden 3670 Engine Cooling Fan

Hayden 3670 Electric Fan Kit Overview

The Hayden 3670 is a universal 10-inch electric fan kit built for 12-volt cooling systems. It uses a reversible curved S-blade design, reinforced nylon construction, and a low 2.625-inch depth for compact engine bay packaging.

With 650 CFM free-air flow and 500 CFM at the radiator mount, this Hayden Electric Fan Kit is a practical choice for supplemental engine cooling on a wide range of vehicles, including Subaru Legacy, Subaru Outback, and many import and domestic applications.

Key Features

• Part number 3670 universal electric fan kit
• 10-inch fan diameter with 8 curved S-blades
• 12-volt operation with 5.4 amp draw
• Reversible rotation for flexible airflow direction
• Reinforced nylon fan and shroud materials
• Finger guard on fan for added protection
• 36-inch wiring harness length
• Performance rated for engine cooling use
• Mounting hardware included

Detailed Description

Hayden 3670 is a universal electric fan kit intended for engine cooling support where space, airflow, and electrical load matter. The reinforced nylon blade and shroud construction helps keep weight down while maintaining durability, and the reversible fan style allows the installer to set airflow for puller or pusher use as needed. The compact 2.625-inch depth makes it easier to package in tighter front-end or auxiliary cooling locations.

This part cross-references Four Seasons 36895 and UAC CF0010C for the same application. It is a direct search match for buyers looking for a Hayden 3670 electric fan, a 10-inch universal electric fan kit, or a reversible 12V engine cooling fan for Subaru Legacy and Subaru Outback applications.

What This Fan Kit Helps Address

• Rising coolant temperatures in stop-and-go driving
• Reduced airflow through the radiator at low vehicle speed
• Need for supplemental cooling on performance or modified setups
• Tight installation spaces that require a shallow fan profile
• Replacement of a worn or inefficient auxiliary cooling fan

Installation Notes and Tips

Confirm available clearance before installation, especially around the radiator, belts, and accessories. The reversible design allows airflow direction to be set during installation, and the 36-inch harness provides routing flexibility for many engine bays. Verify 12-volt system compatibility and match the fan orientation to the cooling strategy required for the vehicle.

Fits 2016-2019 Subaru Legacy, N/A; Fits 2016-2019 Subaru Outback, N/A; Fits 2010-2015 Subaru Legacy, N/A; Fits 2010-2015 Subaru Outback, N/A.

Quality Assurance

Hayden manufactures this performance-rated electric fan kit with reinforced nylon components and included mounting hardware for installation support. Part number 3670 is built for universal cooling applications and is listed across multiple interchange references for broad application coverage.