Standard Ignition DS-290 Headlight Switch

Headlight Switch for GM Trucks

Standard Ignition DS-290 is a 12-volt headlight switch built for direct, snap-fit installation on select Chevrolet and GMC trucks. It uses a black plastic finish, a rectangular no-connector design, and 6 male blade terminals for a straightforward electrical connection.

Compatible With 1988-1991 Chevrolet C1500, C2500, C3500, K1500, K2500, and K3500, as well as 1988-1991 GMC C1500, C2500, C3500, K1500, K2500, and K3500. This DS-290 headlight switch is a fitment-based replacement for common lighting control service on these GM applications.

Key Features

• Part number: DS-290
• Headlight switch for 12-volt systems
• Direct, snap-fit attachment method
• Black plastic finish
• Rectangular body with no connector
• 6 male blade terminals
• Copper alloy conductors for strong electrical conductivity and reduced resistance
• 100% tested for mechanical and electrical switching performance

Product Details

Standard Ignition DS-290 is engineered with robust materials to meet the demands of professional service work. The copper alloy conductor design supports efficient current flow, while the tested switching performance helps confirm proper operation before installation. If you are replacing a worn GM truck headlight switch, DS-290 provides the electrical layout and terminal configuration needed for the listed Chevrolet and GMC applications.

This part cross-references Standard Ignition DS290T and HLS11 for the same application.

Common Problems This Part Can Address

• Headlights that do not turn on or off correctly
• Intermittent lighting control operation
• Worn switch contacts causing unreliable electrical switching
• Heat-related resistance issues at the switch terminals
• Damaged or failing headlight switch in the dash control circuit

Installation Notes and Tips

Verify the terminal count, connector style, and attachment method against the original switch before installation. Confirm the vehicle uses a 12-volt electrical system and match the rectangular, no-connector layout to the existing part. For 1990-1991 Chevrolet and GMC trucks, note the listed black finish ignition lock cylinder application detail in the fitment notes when comparing the replacement part.

Fits 1988-1989 Chevrolet C1500, 1988-1989 Chevrolet C2500, 1988-1989 Chevrolet C3500, 1988-1989 Chevrolet K1500, 1988-1989 Chevrolet K2500, 1988-1989 Chevrolet K3500, 1988-1989 GMC C1500, 1988-1989 GMC C2500, 1988-1989 GMC C3500, 1988-1989 GMC K1500, 1988-1989 GMC K2500, 1988-1989 GMC K3500, 1990-1991 Chevrolet C1500, 1990-1991 Chevrolet C2500, 1990-1991 Chevrolet C3500, 1990-1991 Chevrolet K1500, 1990-1991 Chevrolet K2500, 1990-1991 Chevrolet K3500, 1990-1991 GMC C1500, 1990-1991 GMC C2500, 1990-1991 GMC C3500, 1990-1991 GMC K1500, 1990-1991 GMC K2500, 1990-1991 GMC K3500.

Quality Assurance

Standard Ignition builds this switch with copper alloy conductors and tests each unit for mechanical and electrical switching performance. That validation supports consistent operation in service applications such as Chevrolet C1500 and GMC K2500 headlight switch replacement work.