Saturn SW2 License Plate Bulb Size

The Saturn SW2 license plate light requires 168 and 194 bulb sizes for the lighting system. Data for the specific components covers the period from 1993 through 2001.

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
1996-2001	168
1993-1995	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The Saturn SW2 uses two distinct bulb sizes for the license plate position across its production years: the 168 for model years 1996-2001 and the 194 for model years 1993-1995.
Both the 168 and 194 are ANSI-standardized bulbs recognized in the United States and Canada, and both follow the T10 miniature wedge form factor.
The T10 wedge base is a small, tapering plastic base that seats directly into a socket without a separate metal base, which is a common configuration in low-current automotive lighting applications.
Although the 168 and 194 share the same T10 wedge base type, they are not electrically identical. The 168 operates at 4.9W while the 194 operates at 3.78W, both on a 12V circuit.
The wattage difference between the two bulbs means that substituting one for the other in the Saturn SW2 would result in a mismatch with the original equipment specification for that model year.
The 168 bulb, used in the SW2 from 1996 onward, draws more power than the 194 used in earlier years, reflecting a higher luminous output for the license plate position in those later applications.
Both bulb types operate on the standard 12V automotive electrical system, which is consistent with conventional passenger vehicle architecture.