Plymouth Road Runner Clock Light Bulb Size

The Plymouth Road Runner clock light requires bulb size 57 or 158 or 257 depending on the specific application. Data for the bulb sizes covers the range from 1968 to 1975.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

YearsBulb TypeShop
1975158Check Price
1970257Check Price
57Check Price
196957Check Price
1968257Check Price
57Check Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W.158Check Price
ANSI standard (US & Canada). Festoon or BA9s base instrument bulb. 12V, 2W.257Check Price
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W.57Check Price

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