Standard Ignition DS-301 Headlight Dimmer Switch

Headlight Dimmer Switch for Ford and Mercury

Standard Ignition DS-301 is a new headlight dimmer switch built for older Ford, Lincoln, and Mercury column-mounted applications. It uses copper alloy conductors for strong electrical conductivity and is 100% tested for mechanical and electrical switching performance.

• Headlight dimmer switch with turn signal control included
• 12-volt electrical design with 13 blade terminals
• Female rectangular connector design with 2 connector cavities
• Bolt-on attachment method for column-mounted installation
• Latching high beam operator and momentary high beam flasher included
• New switch with aluminum and plastic finish
• Standard Ignition DS-301 for service replacement use

Application Details

Compatible With 1980-1994 Ford, Lincoln, and Mercury vehicles listed in the fitment data, including Ford Escort, Ford Mustang, Ford Ranger, Ford Bronco II, Mercury Capri, and Lincoln Town Car applications. This Standard Ignition DS-301 headlight dimmer switch is also listed for Ford Escort dimmer and turn signal switch applications and Ford Ranger column-mounted headlight dimmer switch applications.

Use this part when servicing a worn or failing column switch on vehicles such as the Ford Mustang, Mercury Topaz, and Ford Tempo. The DS-301 part number is also referenced in interchange listings for service replacement matching.

This part cross-references 1S4842 and DS130 for the same application.

What It Helps Fix

• Intermittent or inoperative high beam switching
• Failure of the flash-to-pass function
• Turn signal control issues at the steering column switch
• Electrical wear from damaged internal switch contacts
• Dimmer switch problems on column-mounted Ford and Mercury vehicles

Installation Notes

Install on the steering column using the bolt-on attachment method and verify the connector style, terminal count, and vehicle-specific configuration before replacement. Some listed applications note column shift, flash-to-pass, automatic dimmer, or non-tilt-wheel requirements, so confirm the exact vehicle setup before ordering. The DS-301 is a direct electrical service part for the specified applications and should be matched to the original switch layout.

Quality Assurance

Standard Ignition builds this switch with robust materials and copper alloy conductors, then tests each unit for switching performance and electrical function. That combination supports consistent operation in service replacement use across Ford, Lincoln, and Mercury dimmer switch applications.