Hayden 3921 Engine Cooling Fan

14" Pusher Electric Cooling Fan

Hayden Electric Fan 3921 is a 12-volt, performance-rated 14-inch pusher engine cooling fan built for front-of-radiator airflow support. With a plastic black blade assembly, blade-style connector, and 2-terminal male connection, it is sized for applications that need a compact electric fan with strong free-air output.

Compatible with a wide range of vehicles including Subaru Forester, WRX, and Outback applications, as well as many BMW, Ford, Chevrolet, Toyota, and Nissan models, this fan is used in primary and auxiliary cooling setups where direct airflow through the radiator is required.

Key Features

• Hayden Electric Fan line, part number 3921
• 14-inch pusher-style engine cooling fan
• 12-volt electrical design
• Plastic blade construction with black finish
• Blade connector with 2 male terminals
• Performance rated for cooling applications
• Free-air airflow rating: 1500 CFM
• Radiator-mounted airflow rating: 1260 CFM
• Compact depth: 2.56 in. for tighter front-end packaging

Detailed Description

Hayden 3921 is an electric pusher fan designed to move air through the radiator from the front side of the vehicle. The 14-inch diameter and performance-rated output make it a practical choice for engine cooling fan replacement or custom cooling system setups where space, airflow, and electrical compatibility matter. This part cross-references Four Seasons 37141 for the same application.

As part of the Hayden Electric Fan product line, this unit focuses on straightforward cooling hardware for automotive use. The 12-volt design, 2-terminal male connection, and blade-style connector simplify integration into many cooling systems, while the compact 2.56-inch depth helps when clearance is limited. Hayden 3921 is also referenced for applications across Subaru, BMW, Ford, Chevrolet, Toyota, and Nissan platforms, including 2016-2021 Subaru Forester, 2016-2021 Subaru WRX, and 2009-2015 BMW 550i fitments listed in the catalog data.

What It Helps Address

• High engine temperatures during stop-and-go driving
• Reduced radiator airflow in tight front-end installations
• Cooling fan replacement for worn or inefficient electric fans
• Auxiliary airflow needs in performance or modified cooling systems
• Packaging challenges where a compact 14-inch pusher fan is required

Installation Notes and Tips

Mounting hardware is not included. Controls are not included. Verify available clearance, electrical connection type, and fan orientation before installation. Confirm the vehicle’s cooling strategy and match the fan to the intended pusher application, especially on fitments that require special mounting hardware and controls. For direct fitment research, review the catalog listing for your exact year, make, and model before ordering.

Quality Assurance

Hayden 3921 is a performance-rated electric cooling fan built for automotive cooling service and cataloged for broad vehicle coverage. It is listed with OE-style interchange references and application data to support fitment verification before installation.