Standard Ignition DS-78 Headlight Dimmer Switch

Headlight Dimmer Switch for Chrysler and Dodge

Restore reliable high-beam and low-beam control with the Standard Ignition DS-78 headlight dimmer switch. This 12-volt dashboard-mounted switch uses a bolt-on attachment, a rectangular female connector, and three male blade terminals for a direct electrical connection in supported Chrysler and Dodge applications.

Built with copper alloy conductors and tested for mechanical and electrical switching performance, the DS-78 is made for service work where consistent headlight switching matters. It is a direct-fit option for select Chrysler Fifth Avenue, Daytona, Imperial, LeBaron, New Yorker, Newport, and Dodge Aspen and Magnum models.

Key Features

• Standard Ignition DS-78 headlight dimmer switch
• 12-volt electrical design
• Bolt-on attachment method
• Dashboard mounting location
• Female rectangular connector with 3 male blade terminals
• Copper alloy conductors for low-resistance electrical flow
• 100% tested for mechanical and electrical switching performance

Detailed Description

The Standard Ignition DS-78 is a headlight dimmer switch engineered for vehicles that use a dashboard-mounted, bolt-on switch layout. It is built with durable materials and copper alloy conductors to support stable electrical conductivity and dependable beam selection. The DS-78 part number is commonly searched for Chrysler and Dodge lighting repair, including Chrysler Fifth Avenue and Chrysler Daytona applications.

This part cross-references Standard Motor Products DS123 and DS124 for the same application. The DS-78 also serves as a practical replacement for select Chrysler Imperial, LeBaron, New Yorker, Newport, and Dodge Aspen and Magnum vehicles where the original switch configuration matches the listed connector and terminal design.

What It Helps Fix

• Intermittent high-beam or low-beam switching
• Headlights that do not change beam position correctly
• Worn internal switch contacts
• Electrical resistance at the dimmer switch connection
• Dashboard headlight control failure in supported Chrysler and Dodge models

Installation Notes and Tips

• Fits 1979-1981 Chrysler LeBaron, dashboard-mounted, w/o Tilt Wheel; Column Mounted
• Fits 1979-1981 Chrysler New Yorker, dashboard-mounted, w/o Tilt Wheel; Column Mounted
• Fits 1979-1981 Chrysler Newport, dashboard-mounted, w/o Tilt Wheel; Column Mounted
• Fits 1979-1980 Dodge Aspen, dashboard-mounted, w/o Tilt Wheel; Column Mounted
• Fits 1979 Dodge Magnum, dashboard-mounted, w/o Tilt Wheel; Column Mounted
• Fits 1981-1983 Chrysler Imperial, dashboard-mounted, Not compatible with vehicles equipped with a Tilt Wheel.
• Fits 1981-1983 Plymouth PB150, dashboard-mounted, Not compatible with vehicles equipped with a Tilt Wheel.
• Fits 1981-1983 Plymouth PB250, dashboard-mounted, Not compatible with vehicles equipped with a Tilt Wheel.
• Fits 1981-1983 Plymouth PB350, dashboard-mounted, Not compatible with vehicles equipped with a Tilt Wheel.
• Fits 1982 Chrysler LeBaron, dashboard-mounted, Not compatible with vehicles equipped with a Tilt Wheel.
• Fits 1982 Chrysler New Yorker, dashboard-mounted, Not compatible with vehicles equipped with a Tilt Wheel.
• Fits 1983-1989 Chrysler Fifth Avenue, dashboard-mounted, Not compatible with vehicles equipped with a Tilt Wheel.
• Fits 1984-1987 Chrysler Daytona, dashboard-mounted, Not compatible with vehicles equipped with a Tilt Wheel.

Verify the connector shape, terminal style, and mounting location before installation. The DS-78 is intended for vehicles with the listed non-tilt-wheel configurations, so matching the original switch layout is important for proper operation.

Quality Assurance

Standard Ignition builds this switch with robust materials and tests each unit for both mechanical action and electrical performance. The DS-78 is engineered to meet the demands of professional service replacement work.