The Ford Transit front and rear side marker bulbs both utilize a 168 bulb size across multiple model generations. The replacement chart covers vehicle production spanning 2015 to 2023 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 Ford Transit uses the 168 bulb for both front and rear side marker positions across all listed model years.
The 168 is an ANSI-standardized bulb type recognized in the United States and Canada, which means it conforms to a defined set of electrical and physical characteristics shared across manufacturers.
This bulb follows the T10 miniature wedge form factor, a design that uses a tapered plastic base to secure the bulb directly into a socket without a separate metal base or locking pins.
The 168 operates at 12 volts and draws 4.9 watts, placing it in the low-wattage range typical of marker and indicator lighting rather than primary illumination.
The front side marker on the Ford Transit uses the 168 bulb for model years 2015-2023, with 2021 and 2022 not represented in the listed data.
The rear side marker position uses the same 168 bulb for model years 2015-2020.
Because the front and rear side marker positions share the same bulb type, a single 168 bulb serves both locations on the vehicle.
The T10 wedge base is a widely used form factor, meaning 168 bulbs are broadly available as both incandescent and LED replacements, though fitment compatibility depends on socket design and housing space.
The ANSI designation of the 168 bulb means its voltage, wattage, and base type are standardized, so bulbs from different manufacturers carrying the 168 designation are electrically interchangeable with one another.