Standard Ignition HS-379 A/C Selector Switch

OE Replacement A/C Selector Switch

Standard Ignition HS-379 is a direct-fit A/C selector switch for instrument panel HVAC controls. It is built with a female connector, male blade terminals, and 4 switch positions to restore heater and air conditioning control function in the vehicle cabin.

Compatible with 2001-2007 Ford Escape and 2005-2007 Mercury Mariner, this HS-379 replacement is a practical choice when the original selector switch is worn, intermittent, or no longer responding correctly. It also cross-references Four Seasons 37610 for the same application.

Key Features

• Direct-fit OE replacement for instrument panel HVAC control systems
• 4 switch positions for selector function
• Female connector with male blade terminals
• Built from high-quality materials for demanding under-dash conditions
• Individually tested for electrical reliability
• Standard Ignition HS-379 fitment for Ford Escape and Mercury Mariner applications

Product Details

This A/C selector switch is designed for vehicles that use a 4-position HVAC selector in the instrument panel. Standard Ignition HS-379 supports the control input needed to change heater and air conditioning settings, helping restore normal operation in Ford Escape and Mercury Mariner models. The part number HS-379 is a useful reference when matching the switch to the original unit during replacement.

Standard Ignition manufactures aftermarket electrical components with process control throughout production, and this switch is built to meet the demands of daily use in automotive HVAC systems.

Common Problems It Can Help Solve

• HVAC selector knob or switch not changing modes correctly
• Intermittent heater or A/C control response
• Broken or worn internal switch contacts
• Loss of one or more selector positions
• Dashboard climate control input that no longer operates consistently

Installation Notes and Tips

Verify connector style, terminal type, and switch position count before installation. This HS-379 uses a female connector and male blade terminals, so matching the original electrical interface is important for proper fitment. Confirm vehicle application by year and model: Fits 2001-2007 Ford Escape, N/A; Fits 2005-2007 Mercury Mariner, N/A; Fits 2005 Mercury Mariner, N/A, to 10/3/05.

For best results, compare the original switch layout and HVAC control behavior before removing the old part. The part number HS-379 can also help confirm the correct replacement during ordering and installation.

Quality Assurance

Standard Ignition states that this selector switch uses durable materials and undergoes extensive testing to support reliable operation. The manufacturer also maintains quality control throughout the production process.