Saturn Relay License Plate Bulb Size

The Saturn Relay license plate light requires a 168 bulb size for proper illumination of the rear exterior area. Data for the specified component covers the 2005 to 2007 range.

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
2005-2007	168

Bulb Specifications

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

Other Locations

Additional Notes

The 168 bulb is the license plate bulb size for the Saturn Relay across the 2005-2007 model years.
The 168 bulb follows the ANSI standard, which is the recognized specification framework used in the United States and Canada for automotive lighting components.
It belongs to the T10 form factor, a miniature wedge-base bulb type that uses a tapered plastic base to secure itself directly into a socket without a separate metal base or locking mechanism.
The 168 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
Its rated power draw is 4.9 watts, placing it in the low-wattage range typical of non-illumination lighting positions such as license plate housings.
The T10 wedge base is shared across a wide range of bulb part numbers, meaning physical fitment alone does not confirm electrical compatibility; voltage and wattage ratings require separate verification before substitution.