Standard Ignition DS-746 Headlight Dimmer Switch - Front

Headlight Dimmer Switch for Taurus and Sable

Standard Ignition DS-746 is a new headlight dimmer switch built for vehicles that use a combination switch with lighting, turn signal, washer, and intermittent wiper functions. It is engineered with copper alloy conductors for strong electrical conductivity and low resistive loss, and each unit is tested for mechanical and electrical switching performance.

• Part number DS-746
• Combination switch with main light operator, latching high beam, and momentary high beam flasher
• Turn signal control and windshield washer spray included
• Windshield wiper delay setting and windshield wiper speed setting included
• 3 connector cavities, female rectangular connector, 20 blade terminals
• Bolt-on attachment method
• 12-volt electrical design
• Displayed indicator markings included

Detailed Product Overview

This Standard Ignition DS-746 headlight dimmer switch is a direct-fit electrical control component for 1986-1989 Ford Taurus and 1986-1989 Mercury Sable applications listed below. It is built for service replacement where the original combination switch controls exterior lighting, high-beam selection, turn signals, windshield washer spray, and intermittent wiper functions. The DS-746 part number is also referenced in interchange listings for related service applications.

This part cross-references Standard Ignition service numbers such as 1S1081 and SW1083 for the same application.

Vehicle Fitment

• Fits 1989 Ford Taurus, N/A
• Fits 1989 Ford Taurus, Front
• Fits 1989 Mercury Sable, N/A
• Fits 1989 Mercury Sable, Front
• Fits 1986-1989 Mercury Sable, N/A, w/ Pulse Wipers; Combo Switch
• Fits 1986-1988 Ford Taurus, N/A, w/ Intermittent Wipers
• Fits 1986-1988 Ford Taurus, Front, w/ Intermittent Wipers
• Fits 1986-1988 Ford Taurus, N/A, w/ Intermittent Wiper
• Fits 1986-1988 Mercury Sable, Front, w/ Intermittent Wipers
• Fits 1986-1988 Mercury Sable, N/A, w/ Intermittent Wipers

Installation Notes and Tips

Verify connector shape, terminal count, and switch functions against the original unit before installation. This bolt-on switch uses a female rectangular connector with male blade terminals, so the harness and mounting points should match the OE layout. Confirm whether the vehicle is equipped with intermittent wipers or pulse wipers, since fitment notes vary by configuration on Ford Taurus and Mercury Sable models.

Quality Assurance

Standard Ignition builds this switch with robust materials and copper alloy conductors, then tests each unit for both electrical continuity and mechanical operation. That process supports consistent switching performance for headlight dimmer and combination-switch functions in service replacement use.