Standard Ignition DWS-594 Door Window Switch - Front Left

OE-Style Power Window Switch Replacement

Restore power window control with this direct-fit door window switch from Standard Ignition. Built to OE specifications for proper fit, form, and function, the DWS-594 is a practical replacement for worn or nonresponsive switch assemblies in select Ford trucks.

Compatible with 1997-1999 Ford F-150, front left; 1997-1998 Ford F-250, front left; 1997 Ford F-250 HD, front left; and 1999 Ford F-250 Super Duty and F-350 Super Duty, front left, this switch is a focused solution for driver-side window control concerns.

Key Features

• Direct-fit OE-replacement door window switch
• Functions as a power window switch
• Female connector with 9 male blade terminals
• Copper alloy conductors for strong electrical conductivity and reduced resistive loss
• Built with durable materials for service use
• Manufactured to OE spec for fit, form, and function

Detailed Description

The Standard Ignition DWS-594 is engineered for the front left position and is designed to restore normal power window operation when the original switch is worn, intermittent, or no longer responding. Its OE-replacement design helps maintain the original electrical interface, while copper alloy conductors support efficient current flow through the switch circuit. This part cross-references Dorman - OE Solutions 901-390 for the same application. For buyers searching for a 1999 Ford F-150 front left power window switch or a 1997-1998 Ford F-250 front left window switch, the DWS-594 provides a direct replacement path. The same applies to 1999 Ford F-250 Super Duty and F-350 Super Duty front left applications.

Common Problems It Can Solve

• Driver window switch no longer activates the window motor
• Intermittent window operation from worn internal contacts
• Broken or unreliable switch response on the front left door
• Electrical resistance issues caused by aging switch components
• Loss of normal power window control in select Ford truck applications

Installation Notes and Tips

Verify connector style, terminal count, and front left placement before installation. The DWS-594 uses a female connector with 9 male blade terminals, so matching the original switch interface is important for proper operation. Confirm vehicle build date on 1999 Ford F-150, F-250, F-250 Super Duty, and F-350 Super Duty applications, since fitment is listed only up to 8/14/98 for those models.

Quality Assurance

Standard Ignition states that each switch is manufactured to OE specifications and controlled through the full production process to support consistent fit and function. The brand also uses copper alloy conductors and service-grade materials to meet the demands of professional repair work.