Standard Ignition DS-749 Headlight Dimmer Switch

Headlight Dimmer Switch for Ford Trucks

Standard Ignition DS-749 is a new headlight dimmer switch built for Ford truck applications that need reliable lighting and wiper control from the steering column. It combines multiple driver functions in one bolt-on, electrical switch assembly with a black plastic finish and factory-style connector layout.

Designed for 1997-2000 Ford F-150, Ford F-250, Ford F-350, and Ford F-250/F-350 Super Duty applications, this DS-749 switch supports consistent beam selection, turn signal operation, and windshield wiper controls. The part number DS-749 is a direct-fit service replacement for common Ford truck repair needs.

Key Features

• Bolt-on headlight dimmer switch with a factory-style rectangular female connector
• Combination switch design for lighting, turn signal, and wiper functions
• Latching high beam operator and momentary high beam flasher included
• Turn signal control and indicator markings included for driver visibility
• Windshield washer spray, wiper delay, and wiper speed functions included
• Black plastic finish with 12-volt electrical design
• Copper alloy conductors for strong electrical conductivity and reduced resistance
• 100% tested for mechanical and electrical switching performance

Detailed Description

Standard Ignition DS-749 is engineered as a service replacement headlight dimmer switch for Ford F-150, Ford F-250, Ford F-350, and Super Duty truck platforms from 1997 through 2000. It is built with durable materials and copper alloy conductors to help maintain stable electrical transfer across the switch contacts. The combination-switch layout supports headlight dimming, turn signal operation, windshield washer spray, and windshield wiper delay and speed control from the same column-mounted unit.

This part cross-references Dorman - HELP 2330817 for the same application. If you are searching for a Ford F-150 headlight dimmer switch, Ford F-250 combination switch, or a Ford F-350 turn signal and wiper switch replacement, DS-749 is a direct-fit option to compare against the original equipment design.

What It Helps Fix

• Intermittent or inoperative high beam switching
• Turn signal control problems at the steering column
• Windshield wiper delay or speed selection issues
• Washer spray activation faults from the column switch
• Electrical contact wear that causes inconsistent lighting operation

Installation Notes and Tips

DS-749 uses a bolt-on attachment method and a 2-connector, 14-terminal blade-style layout. Verify connector shape, terminal count, and vehicle configuration before installation. This switch is listed for 1997-2000 Ford F-150, 1997-2000 Ford F-250, 1997-2000 Ford F-350, and 1999-2000 Ford F-250 Super Duty and F-350 Super Duty applications, with notes for GVW-specific coverage on certain 1997-1999 trucks. Confirm the original switch functions match the replacement before service.

Quality Assurance

Standard Ignition builds this switch with robust materials and tests each unit for both mechanical action and electrical switching performance. The DS-749 is a new replacement part designed to meet the demands of professional repair work on Ford truck electrical systems.