Standard Ignition DS-749 Headlight Dimmer Switch

Reliable Headlight Dimmer Switch for Ford F-Series Trucks

The Standard Ignition DS-749 headlight dimmer switch is designed specifically for Ford F-150, F-250, F-250 Super Duty, F-350, and F-350 Super Duty models. This new combination switch offers essential lighting and turn signal control functions with a durable bolt-on attachment method and a black plastic finish.

• Compatible with Ford F-150, F-250, F-250 Super Duty, F-350, and F-350 Super Duty
• Part number DS-749 for precise identification
• Combination switch with headlight dimmer and turn signal control
• Bolt-on attachment method for secure installation
• Black plastic finish with rectangular female connectors (2 cavities)
• Includes latching high beam operator and momentary high beam flasher
• Indicator markings included for clear operation
• 14 male blade terminals for reliable electrical connections

Product Features and Specifications

The DS-749 headlight dimmer switch from Standard Ignition is engineered to meet the electrical and lighting control needs of Ford trucks. It features a combination switch design that integrates headlight dimming and turn signal functions into one unit. The switch includes a latching high beam operator and a momentary high beam flasher, allowing drivers to toggle between high and low beams efficiently. The black plastic finish provides durability and corrosion resistance, while the rectangular female connectors with two cavities ensure a secure and proper fit. With 14 male blade terminals, this switch supports stable electrical connections necessary for consistent lighting performance.

Common Applications and Problem Solving

• Replaces faulty or non-responsive headlight dimmer switches on Ford F-Series trucks
• Restores proper turn signal and high beam operation
• Fixes issues with intermittent or stuck high beam activation
• Addresses electrical connection problems due to worn or damaged terminals
• Improves safety by ensuring clear indicator markings and reliable switch function

Installation Notes and Tips

Installation of the Standard Ignition DS-749 headlight dimmer switch requires basic automotive electrical knowledge. The bolt-on attachment method allows for straightforward mounting in the steering column area. Ensure the vehicle’s battery is disconnected before beginning installation to prevent electrical shorts. Verify connector orientation and securely attach the rectangular female connectors to the corresponding male terminals. Confirm that all indicator markings align correctly for proper operation. Testing the switch functions before reassembling the steering column is recommended to ensure correct installation.

Quality Assurance and Warranty

This headlight dimmer switch is a new, Standard Ignition part designed to meet OEM specifications for Ford F-150, F-250, F-250 Super Duty, F-350, and F-350 Super Duty trucks. Standard Ignition parts undergo rigorous quality control to ensure durability and reliable performance. While specific warranty details are not provided here, Standard Ignition typically offers coverage against manufacturing defects. Refer to the product documentation or manufacturer for exact warranty terms.