Standard Ignition HS-388 A/C Selector Switch

A/C Selector Switch for Manual HVAC Control

The Standard Ignition HS-388 is a direct-fit A/C and heater selector switch for manual HVAC systems. It is built with a black and red plastic finish, a female connector, male blade terminals, and 4 switch positions for blower motor control.

Compatible With Ford Ranger, Ford F-150, Ford F-250 Super Duty, Ford F-350 Super Duty, Ford Excursion, Ford Expedition, Ford Thunderbird, Mercury Cougar, and select Mazda B-Series trucks with manual control or manual A/C applications.

Key Features

• Direct-fit OE replacement for easier installation
• Controls blower motor functions through a 4-position selector
• Black and red plastic construction
• Female connector with male blade terminals
• Built for manual HVAC instrument panel applications
• Manufactured with quality control throughout production

Detailed Description

Standard Ignition HS-388 is an HVAC instrument panel A/C selector switch made for vehicles that use manual climate control. It restores blower motor selection through the factory-style switch layout and is engineered to match OE fitment for the listed Ford and Mazda applications. This part number, HS-388, is commonly used for Ford Ranger and Ford F-150 manual HVAC repairs, as well as related Super Duty and Mazda B-Series applications.

This part cross-references Standard Ignition 1S8938 and F6SZ19B888AA for the same application.

What It Helps Fix

• Blower motor speeds that do not change with the selector
• Intermittent HVAC fan operation at the dash control
• Worn or broken manual A/C selector contacts
• Loss of heater and air conditioning mode selection
• Faulty instrument panel HVAC switch response

Installation Notes and Tips

Verify the vehicle uses manual control before ordering. Confirm connector style, terminal layout, and switch position count against the original part. This HS-388 switch is used in instrument panel HVAC systems, so matching the factory application is important for proper operation. Fits 1997-2006 Ford F-150, w/ Manual Control; Fits 1999-2007 Ford F-250 Super Duty, w/ Manual Control; Fits 1999-2007 Ford F-350 Super Duty, w/ Manual Control; Fits 2000-2005 Ford Excursion, w/ Manual Control; Fits 2004-2011 Ford Ranger; Fits 2001-2008 Mazda B2300; Fits 2000-2008 Mazda B4000; Fits 2000-2007 Mazda B3000; Fits 2000-2001 Mazda B2500; Fits 1997-2002 Ford Expedition, w/ Manual AC; Fits 2004 Ford F-150 Heritage, w/ Manual AC; Fits 2000-2003 Ford Ranger, Mode Switch; Fits 1997-1997 Ford Thunderbird; Fits 1996-1997 Mercury Cougar.

Quality Assurance

Standard Ignition states that this selector switch is produced with high-quality materials, tested extensively for reliability, and manufactured under complete quality control. The HS-388 is a direct replacement intended to match OE-style fit and function for the listed applications.