The UD 2600 uses a 67 bulb size for the front side marker and a 168 bulb size for the rear side marker. The replacement chart covers vehicle production spanning 1995 to 1998.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The UD 2600 uses bulb size 67 for the front side marker across the 1995-1998 model years.
The 67 bulb is an ANSI-standard single-filament type rated at 12V and 8W, fitted with a BA15s bayonet base.
The BA15s base is a single-contact bayonet fitting, which is not interchangeable with dual-contact bayonet bases such as those found on the 1156 family despite the 67 sharing a similar physical profile.
The 67 bulb is a lower-wattage variant of the 1156, meaning the two are related in base design but differ in wattage output and are not direct substitutes.
The rear side marker on the UD 2600 uses bulb size 168 across the same 1995-1998 model years.
The 168 bulb is an ANSI-standard miniature wedge type in the T10 form factor, rated at 12V and 4.9W.
The T10 wedge base relies on the bulb's own leads for retention rather than a separate locking mechanism, which distinguishes it from the bayonet-style 67 used at the front.
The front and rear side marker positions on the UD 2600 require different bulb types, and the 67 and 168 are not interchangeable with each other due to differing base designs and wattage ratings.
Both the 67 and 168 bulbs conform to ANSI standards recognized in the United States and Canada, indicating consistent electrical and physical specifications within those markets.
The wattage difference between the front 67 bulb at 8W and the rear 168 bulb at 4.9W reflects a lower light output at the rear side marker position.