Yamaha YZF-R1 License Plate Bulb Size

The Yamaha YZF-R1 license plate bulb uses a 168 size bulb for illumination of the rear registration area. The replacement chart covers 2007 through 2014 model 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.

Bulb Size by Year Range

Years	Bulb Size
2007-2014	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

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Additional Notes

The Yamaha YZF-R1 uses the 168 bulb size for its license plate position across the 2007-2014 model years.
The 168 bulb is classified under the ANSI standard, which is the recognized specification system for automotive lighting in the United States and Canada.
It belongs to the T10 form factor, a miniature wedge-base bulb type that seats without a separate socket lock, relying instead on the wedge shape of its base to hold it in place.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in motorcycles of this type.
Its rated power draw is 4.9 watts, placing it in the low-wattage range typical of license plate and courtesy lighting applications.
The T10 designation refers to the bulb's tubular glass envelope, with the number indicating a width of 10 eighths of an inch, a sizing convention used across the ANSI miniature bulb series.
The 168 and the closely related 194 are both T10 wedge bulbs, but they differ in wattage. The 168 is rated at 4.9W while the 194 is rated at 3.78W, making them not directly interchangeable despite sharing the same physical base format.