Standard Ignition DS-352 Headlight Dimmer Switch

Headlight Dimmer Switch for GM Trucks and SUVs

Standard Ignition DS-352 is a 12-volt headlight dimmer switch built for dashboard mounting in a wide range of Chevrolet and GMC trucks and SUVs. It uses a bolt-on attachment, a rectangular female connector, and male blade terminals for a direct electrical connection in supported applications.

Key Features

• Part number DS-352 headlight dimmer switch
• 12-volt electrical design
• Bolt-on attachment method for dashboard mounting
• 1 rectangular female connector with 3 male blade terminals
• Metal and plastic construction
• Copper alloy conductors for strong electrical conductivity and reduced resistance
• 100% tested for mechanical and electrical switching performance

Detailed Description

Standard Ignition DS-352 is engineered for dependable headlight beam control in older GM platforms, including Chevrolet Blazer, Chevrolet C/K trucks, GMC Jimmy, and GMC C/K trucks. It is a practical replacement for worn or intermittent dimmer switches in vehicles such as the 1984-1991 Chevrolet Blazer, 1984-1986 Chevrolet C10, and 1984-1991 GMC Jimmy. This part cross-references Standard Ignition DS5 and DS140 for the same application.

Built with copper alloy conductors and tested for both switching action and electrical continuity, DS-352 is suited for service work where consistent headlight high/low beam operation matters. The part number DS-352 also appears in interchange listings for multiple OE-style replacement applications across Chevrolet and GMC light trucks and sport utility vehicles.

What It Helps Fix

• Headlights that will not switch between high and low beam
• Intermittent dimmer switch operation at the dashboard
• Electrical resistance caused by worn internal contacts
• Loss of beam control in steering-column-mounted GM applications noted in fitment
• Dimmer switch failure on aging Chevrolet and GMC truck platforms

Installation Notes and Tips

• Compatible With 1984-1991 Chevrolet Blazer, 1984-1991 GMC Jimmy, and related Chevrolet/GMC C/K truck applications listed in the fitment data.
• Verify connector shape, terminal count, and dashboard mounting location before installation.
• Some listed GMC applications note steering-column mounting; confirm the vehicle’s original switch location before ordering.
• Inspect the connector and terminals for heat damage or corrosion before connecting the replacement switch.

Quality Assurance

Standard Ignition states that this switch is built with robust materials and is fully tested to verify mechanical and electrical switching performance. The copper alloy conductor design supports stable electrical transfer in service applications.