Volkswagen Routan Back Up Light Bulb Size

The Volkswagen Routan back up light utilizes a 921 bulb size for illumination purposes. Data for the specific component covers the period from 2009 through 2014.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2009-2014	921

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921

Other Locations

Additional Notes

The 921 bulb is the specified back up light bulb size for the Volkswagen Routan across all listed model years, spanning 2009-2014.
The 921 is classified as a wedge-type bulb, meaning it uses a plastic wedge base rather than a metal contact pin or bayonet fitting, allowing it to be inserted directly into a compatible socket without rotation.
The T15 designation refers to the bulb's tubular shape with a width of approximately 15 eighths of an inch, a standard sizing convention used in automotive lighting.
The 921 operates at 12 volts, which is consistent with the standard electrical system voltage found in conventional passenger vehicles.
At 16 watts, the 921 produces a moderate output level typical of incandescent reverse lighting applications.
The 921 conforms to ANSI standards, indicating it meets the dimensional and performance requirements recognized in both the United States and Canada.
Because the 921 is an ANSI-standardized wedge bulb, it is interchangeable with other bulbs sharing the same T15 wedge base and equivalent voltage and wattage ratings, provided socket compatibility is confirmed.