Plymouth Conquest front and rear side marker bulbs use 194 and 67 bulb sizes respectively. The replacement chart covers 1984 to 1986 model 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 Conquest uses two distinct bulb types across its front and rear side marker positions for the 1984-1986 model years: the 194 at the front and the 67 at the rear.
The 194 is an ANSI-standard miniature wedge bulb classified under the T10 form factor, operating at 12V and drawing 3.78W.
The T10 wedge base of the 194 requires no locking mechanism, as the wedge-shaped base itself holds the bulb in place within the socket.
The 67 is an ANSI-standard single-filament bulb fitted with a BA15s bayonet base, operating at 12V and drawing 8W.
The BA15s designation indicates a single-contact bayonet base with a 15mm collar, which is a non-indexing base type used where polarity-independent installation is acceptable.
The 67 is a lower-wattage variant of the 1156 bulb, sharing the same BA15s bayonet base but drawing significantly less power, which means the two are not interchangeable despite their physical similarity.
Both the 194 and 67 carry ANSI recognition for use in the United States and Canada, indicating conformance to standardized electrical and photometric requirements for those markets.
The front and rear side marker positions on the Plymouth Conquest (1984-1986) require different bulb types, and substituting one for the other would result in a wattage and base-type mismatch.