Standard Ignition DS-67 Headlight Dimmer Switch

Headlight Dimmer Switch for Classic GM Applications

The Standard Ignition DS-67 headlight dimmer switch is built for direct replacement service on select classic Cadillac, Chevrolet, Buick, GMC, Oldsmobile, and Pontiac vehicles. It uses a bolt-on attachment, a steel switch body, and 12-volt electrical design to support reliable headlight beam selection in vintage GM lighting systems.

With copper alloy conductors for strong electrical conductivity and low resistive loss, the DS-67 is made for consistent switching performance. Standard Ignition tests each unit for mechanical and electrical operation before release.

Key Features

• Part number DS-67 headlight dimmer switch
• Bolt-on attachment method for direct mounting
• 12-volt electrical design
• 3 blade terminals with male terminal gender
• Steel switch material with gray finish and cast iron finish detail
• Copper alloy conductors for efficient current transfer
• 100% tested for mechanical and electrical switching performance

Detailed Description

Standard Ignition DS-67 is a headlight dimmer switch for vehicles that use a floor-mounted style switch arrangement and a 3-terminal blade connection. It is listed for classic applications including 1956-1962 Chevrolet Corvette, 1957-1960 Chevrolet Bel Air, 1958-1960 Chevrolet Impala, 1959-1960 Chevrolet El Camino, 1959-1960 Cadillac DeVille, and 1959-1960 Pontiac Catalina. The DS-67 also cross-references Standard Ignition DS107 for the same application.

This part is suited for owners restoring or repairing original lighting controls on older GM platforms where dependable high/low beam switching is required. The DS-67 part number is also associated with service replacement needs across Cadillac Fleetwood, GMC G1000 Series, Buick LeSabre, Oldsmobile 98, and Pontiac Bonneville applications listed in the fitment data.

What It Helps Fix

• Intermittent or failed headlight beam switching
• Dimmer switch wear from age and repeated use
• Electrical resistance caused by deteriorated switch contacts
• Loose or unreliable blade-terminal connections
• Lighting control issues on classic GM restoration projects

Installation Notes and Tips

Verify the vehicle’s original switch style, terminal layout, and voltage before installation. This DS-67 uses a bolt-on mounting method with 3 male blade terminals, so the connector style and mounting location should match the existing setup. Fitment includes 1961-1964 Cadillac Commercial Chassis and DeVille without auto headlight dimmer, 1964-1966 GMC G1000 Series with terminal below floor, and 1965-1969 Cadillac Fleetwood without Guidematic.

• Fits 1956-1962 Chevrolet Corvette, N/A
• Fits 1957-1960 Chevrolet Bel Air, N/A
• Fits 1958-1960 Chevrolet Impala, N/A
• Fits 1959-1960 Chevrolet El Camino, N/A
• Fits 1959-1960 Cadillac DeVille, N/A
• Fits 1961-1964 Cadillac DeVille, N/A, w/o Auto Headlight Dimmer
• Fits 1964-1966 GMC G1000 Series, N/A, Term. Below Floor
• Fits 1965-1969 Cadillac Fleetwood, N/A, w/o Guidematic

Quality Assurance

Standard Ignition builds this switch with robust materials and copper alloy conductors, then tests each unit for both mechanical action and electrical performance. The DS-67 is engineered to meet the demands of service replacement work on classic vehicle lighting systems.