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The Standard Ignition Headlight Dimmer Switch (part number DS-40) is a direct-fit replacement for 1927-1978 American Austin, Auburn, Buick, and Cadillac vehicles with 2.2L, 3.7L, and 3.8L engines.
Specifications:
| Attachment Method | Bolt On |
| Color/Finish | Silver |
| Finish | Cast Iron |
| Mounting Location | Floor Mounted |
| Terminal Gender | Male |
| Terminal Quantity | 3 |
| Terminal Type | Blade |
| Voltage | 12 |
Fits: 1927-1978 American Austin, Auburn, Buick, Cadillac, and Chevrolet models including American Austin, Model 12-160, Model 12-160A, Model 12-161, Model 12-161A, Model 12-165, Model 1250, Model 6-653 and more — 2.2L, 3.7L, and 3.8L engines.
Confirm the year, make, model, and engine against your vehicle before ordering. Full application data is shown in the fitment lookup on this page.
Interchanges With: Delphi TC6744, KEM DS100, Mighty Distributing System 5-802, ACDelco 12338703, BWD DS118, Caterpillar 2H1855, Chrysler 1265024, Duralast UDS401 and 8 more
WARNING: This product contains a chemical known to the State of California to cause cancer.
