Take control of your headlights' low and high beams with the Standard Ignition Headlight Dimmer Switch DS-40. It is a direct-fit replacement for many vehicles, among them the 1946-1949 Chrysler Town & Country, 1953-1954 Chevrolet Corvette and 1954-1958 Buick Century. See the "Vehicles it fits" section for the full list.
A headlight dimmer switch changes the headlights between low beam and high beam. Standard Ignition is a global manufacturer of original equipment ignition products. It maintains complete quality control throughout manufacturing, from componentry to the finished switch.
- Copper alloy conductors: designed for superior electrical conductivity with low resistive losses.
- 100% tested: every switch is checked to verify both mechanical and electrical switching performance.
- Robust design: high-grade materials built to meet the stringent demands of today's service professional.
Signs this part may need replacing: The headlights may stay stuck on one beam, a beam setting may cut out or work only intermittently, or nothing may change when you operate the switch. Bulbs, wiring and connections can cause similar symptoms, so diagnose the headlight circuit first. If a worn dimmer switch is the cause, the DS-40 replaces it.
Coverage also includes many other Auburn, Buick, Cadillac, Chevrolet, Chrysler, Franklin and GMC models. Several model names are close but cover different years, so match your exact model and year in the "Vehicles it fits" section.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
What does a headlight dimmer switch do?
It changes the headlights between low beam and high beam each time you operate it. The Standard Ignition DS-40 uses copper alloy conductors and is 100% tested for mechanical and electrical switching.
Which vehicles does the DS-40 fit?
It fits many vehicles, including the 1946-1949 Chrysler Town & Country, 1953-1954 Chevrolet Corvette and 1954-1958 Buick Century. See the "Vehicles it fits" section for the full list.
What are signs my dimmer switch may be failing?
Signs include headlights stuck on one beam, a beam setting that cuts out or works only intermittently, or no change when you operate the switch. Check the bulbs, wiring and connections too, since they can cause similar symptoms.
Is the DS-40 tested before it ships?
Yes. Standard Ignition states that its parts are 100% tested to verify both mechanical and electrical switching performance.
Does it fit the 1954-1958 Buick Century?
Yes. The 1954-1958 Buick Century is a listed application. Several model names are close but cover different years, so confirm your exact model and year in the "Vehicles it fits" section.
