The Dodge Wm300 Pickup front turn signal bulb size is 1156, while rear turn signal bulbs measure 1156 or 199 in size. The replacement chart covers vehicle production years from 1967 to 1968 with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 1156 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 21W under the ANSI standard applicable in the United States and Canada.
The 199 shares the same BA15s bayonet base, voltage, and wattage as the 1156 and is classified as a variant of it under the same ANSI standard.
For the Dodge Wm300 Pickup, the 1156 bulb covers the front turn signal position across both 1967 and 1968.
The rear turn signal position on the 1968 model uses the 1156, while the 1967 model uses the 199 in that same position.
Because the 199 is a variant of the 1156 rather than an identical part, the two bulbs are not confirmed as interchangeable despite sharing the same base type, voltage, and wattage.