Standard Ignition DWS-635 Door Window Switch - Front Left

Brand Standard Ignition DWS-635
Position Front Left
Connector Gender Female; Female
Contents Switch
Functions Power Window Switch
Terminal Gender Male; Male
Terminal Type Blade
Fits Ford and Mercury · 15 vehicles

OE replacement. Direct-fit switch restores power window function.

Copper alloy conductors. Deliver superior conductivity with low resistive losses.

OE spec construction. Built for proper fit, form, and function.

Cross-references Baldwin PA2124, Dorman - OE Solutions 901-204 and 1S9174 for the same application. See all 9.

$71.73Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.

OE-Style Power Window Switch Replacement

Restore power window control with this Standard Ignition door window switch, part number DWS-635. It is a direct-fit OE replacement built for the front left position on select Ford, Mercury, and Taurus-family applications, including the Ford Taurus and Mercury Sable.

  • Direct-fit OE-replacement door window switch
  • Power window switch function for the front left door
  • Copper alloy conductors for strong electrical conductivity and low resistive loss
  • Female connectors with male blade terminals
  • 6-terminal / 6-terminal blade-style design

Detailed Product Overview

Standard Ignition DWS-635 is engineered to restore proper power window switch operation with OE-spec fit, form, and function. The switch is built with copper alloy conductors to support efficient current flow, while the robust housing and service-grade materials are made to meet the demands of professional repair work. This part number DWS-635 is a practical replacement when the original switch no longer responds, feels intermittent, or fails to control the window motor consistently.

Compatible With 2008-2009 Ford Taurus, front left; 2008-2009 Ford Taurus X, front left; 2008-2009 Mercury Sable, front left; 2005-2007 Ford Five Hundred, front left; 2005-2007 Ford Freestyle, front left; and 2005-2007 Mercury Montego, front left. This part cross-references Dorman - OE Solutions 901-204 for the same application.

Common Problems This Switch Can Address

  • Inoperative power window control from the driver-side switch
  • Intermittent window response when pressing the switch
  • Worn or damaged electrical contacts inside the switch assembly
  • Loss of window control on the front left door
  • Electrical conductivity issues caused by aging switch components

Installation Notes and Tips

Verify the connector style, terminal count, and front left position before installation. This switch uses female connectors and male blade terminals, so matching the vehicle harness is important for proper fitment. Confirm the vehicle application against the listed Ford Taurus, Taurus X, Sable, Five Hundred, Freestyle, and Montego fitment before replacing the original unit.

Quality Assurance

Standard Ignition manufactures switches to OE specifications and maintains quality control throughout the production process. The result is a replacement door window switch built to support proper fit, form, and function in service applications.

This part fits 15 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2009FordTaurus3.5LV6Front Left—
2009FordTaurus X——Front Left—
2009MercurySable——Front Left—
2008FordTaurus3.5LV6Front Left—
2008FordTaurus X——Front Left—
2008MercurySable——Front Left—
2007FordFive Hundred3.0LV6Front Left—
2007FordFreestyle——Front Left—
2007MercuryMontego——Front Left—
2006FordFive Hundred——Front Left—
2006FordFreestyle——Front Left—
2006MercuryMontego——Front Left—
2005FordFive Hundred——Front Left—
2005FordFreestyle——Front Left—
2005MercuryMontego——Front Left—
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Baldwin — PA2124Dorman - OE Solutions — 901-2041S91745F9Z14529BAC53-4841473076891SW6639SW7190WST735