Four Seasons 20045 HVAC Blower Control Switch - Front

HVAC Blower Control Switch for Ford Applications

Restore precise cabin fan control with this Four Seasons Selector Switch, part number 20045. This HVAC blower control switch is built for 12-volt systems and uses a 4-terminal male rectangular connector for a direct electrical connection in supported Ford and Mercury applications.

Four Seasons Selector Switch line components are built for replacement use in HVAC control circuits, giving you a straightforward option when the blower speed selector becomes intermittent, unresponsive, or fails to change speeds. This part meets or exceeds OEM requirements and is specified for 20-amp service.

Key Features

• Brand: Four Seasons
• Brand line: Selector Switch
• Part number: 20045
• HVAC blower control switch / blower selector switch
• 12-volt electrical system
• 20-amp amperage rating
• 4-terminal male rectangular connector
• Meets or exceeds OEM requirements

Detailed Description

Four Seasons 20045 is an HVAC blower control switch used to manage fan speed selection in the vehicle’s heating and air conditioning system. It is designed for Ford E-Series vans, Econoline models, Aerostar, Mustang, Taurus, and Mercury Sable applications listed in the fitment data, including front-mounted and N/A-position configurations where specified. For shoppers searching for a Ford E-350 Super Duty blower motor switch, Ford E-150 HVAC blower switch, or a replacement selector switch for factory air systems, this part number 20045 is a direct reference point for the correct control component.

This part cross-references UAC SW11118C for the same application.

What It Helps Fix

• Blower fan only works on certain speeds
• HVAC fan does not respond when the selector is turned
• Intermittent cabin airflow control
• Worn or damaged blower switch contacts
• Failed selector switch in factory air HVAC systems

Installation Notes and Tips

Verify connector style, terminal count, voltage, and amperage rating before installation. Confirm the vehicle year, make, model, and position against the fitment list, especially on Ford E-150, E-250, E-350 Super Duty, Econoline, Aerostar, Mustang, Taurus, and Mercury Sable applications. Inspect the HVAC connector and related wiring for heat damage or corrosion before installing the new switch.

Quality Assurance

This Four Seasons HVAC blower control switch meets or exceeds OEM specifications for the listed applications, supporting a replacement-level repair for factory HVAC control systems.