Plymouth Caravelle front side marker bulbs use 194NA or 168 size, while rear side marker bulbs use 168 size. The replacement chart covers 1985 to 1988 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Plymouth Caravelle uses two bulb types across its front and rear side marker positions: the 194NA and the 168, both of which conform to ANSI standards recognized in the United States and Canada.
Both the 194NA and 168 are miniature wedge bulbs sharing the T10 form factor, meaning they occupy the same physical socket style despite differing in wattage and glass treatment.
The 194NA operates at 12V with a rated output of 3.78W, while the 168 operates at 12V with a rated output of 4.9W, making the 168 the higher-wattage of the two types.
The 194NA features natural amber-tinted glass, which produces a yellow-amber light output without the use of a colored lens or external filter.
Although the 194NA and 168 share the T10 wedge base, their wattage difference and the amber glass coating on the 194NA mean the two types are not functionally interchangeable in all positions.
The Plymouth Caravelle front side marker uses the 194NA for the 1986-1988 model years, while the 1985 model year uses the 168 in that same position.
The rear side marker position on the Plymouth Caravelle uses the 168 bulb across all listed model years, spanning 1985-1988.
The shift from the 168 to the 194NA in the front side marker position between the 1985 and 1986 model years reflects a change to a bulb with factory-integrated amber coloring, likely to meet side marker visibility requirements through the glass itself rather than relying solely on the lens.