The Saturn L300 side marker requires 194 or 12961 bulb sizes depending on the specific version of the vehicle. Data for 194 and 12961 bulbs covers the 2001 to 2005 range.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Saturn L300 uses two bulb types across its front and rear side marker positions: the 194 and the 12961, both of which are miniature wedge bulbs built on the T10 form factor.
The 194 is an ANSI-standardized bulb used in the United States and Canada, rated at 12V and 3.78W.
The 12961 is a Philips part number designation for a T10 wedge bulb with a W2.1x9.5d base, rated at 12V and 5W, making it slightly higher in wattage than the 194.
Although both bulbs share the T10 wedge form factor, the 194 and 12961 carry different wattage ratings (3.78W versus 5W), which is a relevant distinction when considering substitution between the two.
For the Saturn L300 front side marker, the 2003-2005 model years use the 194 bulb, while the 2001-2002 model years use the 12961 bulb.
The rear side marker position on the Saturn L300 uses the 12961 bulb across all model years from 2001-2005, with no variation across that span.
The front side marker specification changed between the 2002 and 2003 model years, shifting from the 12961 to the 194, which represents a direct fitment difference within the same vehicle nameplate.