The UD 1400 uses a 67 bulb size for front side marker applications and a 168 bulb size for rear side marker applications. The replacement chart covers 1995 to 1998 vehicle 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 UD 1400 uses two distinct bulb types across its side marker positions for the 1995-1998 model years, with the front and rear positions requiring different bulbs that are not interchangeable with each other.
The front side marker position on the UD 1400 takes the 67 bulb across all four model years covered in the specifications.
The 67 bulb is an ANSI-standard single-filament type with a BA15s bayonet base, rated at 12V and 8W.
The BA15s bayonet base on the 67 bulb features a single contact pin, which is a key fitment detail distinguishing it from visually similar bayonet-base bulbs that use a dual-pin configuration.
The 67 bulb is a lower-wattage variant of the 1156, meaning the two share the same BA15s base type but differ in wattage output, making them physically compatible in the socket while producing different light levels.
The rear side marker position on the UD 1400 takes the 168 bulb across all four model years covered in the specifications.
The 168 bulb is a T10 miniature wedge type, rated at 12V and 4.9W, and uses a wedge base rather than a bayonet fitting.
Because the front position uses a BA15s bayonet base and the rear uses a T10 wedge base, the two bulb types are physically incompatible with each other's sockets.
Both the 67 and 168 bulbs conform to ANSI standards recognized in the United States and Canada, indicating standardized sizing and base configurations across those markets.
At 4.9W, the 168 rear side marker bulb draws notably less power than the 8W 67 bulb used at the front, reflecting the typically lower illumination requirements of rear side marker applications.