Hayden 3700 Engine Cooling Fan

Hayden 3700 16-Inch Electric Fan Kit

The Hayden 3700 Electric Fan Kit is a universal 16-inch reversible cooling fan built for 12-volt systems and high-performance engine cooling. With a curved S-blade design, reinforced nylon construction, and 1,400 CFM free-air flow, it is a practical choice for custom cooling setups and fitment-based applications across a wide range of vehicles.

Key Features

• 16-inch universal electric fan with reversible rotation for push or pull operation
• Reinforced nylon blade and shroud materials for lightweight durability
• 8 curved S-blades for efficient airflow movement
• 12-volt operation with 16.5 amp draw
• 1,400 CFM free-air rating and 1,150 CFM when radiator mounted
• 36-inch wiring harness length for installation flexibility
• Finger guard integrated into the fan shroud
• Mounting hardware included; bracket not included

Product Details

Hayden Electric Fan Kit 3700 is a universal electric fan assembly designed for performance cooling applications where a 16-inch reversible fan is required. The black reinforced nylon fan and shroud package measures 3.87 inches deep and uses a single fan layout with a finger guard on the fan for added protection. This Hayden 3700 fan kit is performance rated and built for push/pull operation, making it a strong option for custom radiator cooling, engine bay packaging, and retrofit projects.

Fitment coverage includes a broad range of applications such as Subaru Legacy and Subaru Outback, Hyundai Santa Fe, Chevrolet Camaro, Ford Mustang, Honda Accord, Nissan Altima, Toyota Tacoma, and many other vehicles listed in the fitment data. This part cross-references Four Seasons 36898 and DENSO Auto Parts 5316 for the same application.

What It Helps Address

• Insufficient radiator airflow at idle or low road speed
• Heat buildup in custom or modified cooling systems
• Space constraints that call for a compact 16-inch electric fan
• Need for reversible push or pull fan configuration
• Replacement of a worn or inefficient universal cooling fan setup

Installation Notes and Tips

• Confirm radiator clearance before installation; the fan depth is 3.87 inches.
• Verify 12-volt electrical supply and current capacity before wiring.
• Use the included mounting hardware as directed by the vehicle or custom setup.
• Controls are not included, so a suitable fan controller or switch setup is required.
• Set the fan direction for push or pull operation based on the cooling layout.

Quality Assurance

Hayden 3700 is a performance-rated electric fan kit built with reinforced nylon components and a reversible design for flexible cooling-system integration. It is engineered for universal use across confirmed fitment applications including 2016-2019 Subaru Legacy, 2016-2019 Subaru Outback, 2001-2017 Hyundai Santa Fe, and 2010-2015 Toyota Tacoma.