Four Seasons 46149 Engine Cooling Fan Clutch

Electronic Fan Clutch for Ford Super Duty

Four Seasons 46149 is an electronic, electro-viscous severe duty fan clutch built for controlled engine cooling performance. It is engineered and tested for long service life, with a focus on dependable operation in demanding truck applications.

Compatible with 2020 Ford F-250 Super Duty, 2020-2022 Ford F-350 Super Duty without dual rear wheels, and 2021-2022 Ford F-250 Super Duty, this fan clutch supports proper cooling fan engagement for heavy-duty use. Four Seasons 46149 is a direct-fit cooling component for Ford Super Duty trucks that need precise thermal control.

Key Features

• Electronic, electro-viscous fan clutch design
• Severe duty style for demanding cooling systems
• Overall diameter: 9.39 in. (238.5 mm)
• Overall height: 4.43 in. (112.5 mm)
• Fan bolt circle: 8.66 in.
• Bolt thread: M6x1.000
• 4 bolt holes and 4 mounting holes
• Four Seasons fan clutch part number 46149

Product Details

Four Seasons Fan Clutch 46149 is part of the brand’s cooling line and is built for vehicles that rely on electronically controlled fan operation. The electro-viscous grade type and electronic thermal control help maintain consistent fan response under changing engine temperatures and load conditions. This makes it a practical replacement for Ford F-250 Super Duty and Ford F-350 Super Duty cooling system service where accurate fan engagement matters.

This part cross-references Anchor 3243 for the same application.

Common Cooling Issues It May Address

• Cooling fan not engaging at the correct temperature
• Engine running hotter than normal under load
• Excessive fan noise from a worn clutch
• Inconsistent cooling performance in stop-and-go driving
• Reduced cooling efficiency during towing or heavy-duty operation

Installation Notes and Tips

Verify the vehicle’s cooling fan clutch style, bolt pattern, and fan bolt circle before installation. Confirm electronic fan clutch application details for the specific Ford Super Duty model year, especially on 2020-2022 Ford F-350 Super Duty without dual rear wheels and 2021-2022 Ford F-250 Super Duty. Inspect the fan assembly, shroud clearance, and related cooling components during replacement to help ensure proper operation.

Quality Assurance

Four Seasons states that its products are engineered and tested for years of trouble-free operation, backed by more than 50 years of mobile A/C experience. Four Seasons 46149 is built to support reliable cooling performance in Ford Super Duty applications.