Dodge Ram 50 front side marker bulbs use 168 or 67 size, while rear side marker bulbs require 194 size. The replacement chart covers 1983 to 1993 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 Dodge Ram 50 front side marker uses two distinct bulb types across its model years, with the 1983-1986 models specifying the 67 bulb and the 1987-1993 models specifying the 168 bulb.
The 168 bulb is an ANSI-standard miniature wedge type in the T10 form factor, rated at 12V and 4.9W, conforming to US and Canada standards.
The 67 bulb carries an ANSI designation for US and Canadian markets and uses a BA15s single-contact bayonet base rather than a wedge base, rated at 12V and 8W.
Because the 67 bulb uses a BA15s bayonet base while the 168 uses a T10 wedge base, the two front side marker bulbs are not interchangeable despite both serving the same position on the vehicle.
The 67 bulb is described as a lower wattage variant of the 1156, meaning it shares the same BA15s base family but draws less power at 8W compared to the 1156's higher output.
The rear side marker on the Dodge Ram 50 uses the 194 bulb across all listed model years, spanning 1987-1993.
The 194 bulb is also an ANSI-standard T10 miniature wedge type, rated at 12V and 3.78W, placing it in the same physical form factor as the 168 but at a lower wattage.
Although the 168 and 194 bulbs share the T10 wedge form factor, their wattage ratings differ, with the 168 drawing 4.9W and the 194 drawing 3.78W, which is a relevant distinction for socket and circuit compatibility.