The Saturn L200 side marker utilizes 194 and 12961 bulb sizes for the lighting components located on the exterior of the vehicle. Data for the specific bulb requirements covers the period from 2001 through 2003.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Saturn L200 side marker positions use two T10 miniature wedge bulbs across all listed model years: the 194 and the 12961. Both share the same T10 wedge form factor, meaning they occupy the same physical socket type.
Despite sharing a T10 form factor, the 194 and 12961 are not identical. The 194 operates at 3.78W, while the 12961 operates at 5W. Both run on a 12V circuit.
The 194 is designated under the ANSI standard, making it a widely recognized reference number in the United States and Canada. The 12961 is a Philips part number rather than an ANSI designation, and it carries a W2.1x9.5d base specification.
The W2.1x9.5d base on the 12961 is a metric wedge base standard. The numerical values describe the contact width and pin spacing of the wedge base, which governs physical fitment into the socket.
For the Saturn L200 (2003), the front side marker position uses the 194 bulb. This differs from the 2001-2002 model years, where the front side marker position uses the 12961.
The rear side marker position on the Saturn L200 uses the 12961 across all three listed model years, 2001-2003, without variation.
The front side marker socket on the 2003 L200 is specified for a 3.78W bulb, while the same position on 2001-2002 models is specified for a 5W bulb. Substituting between these two years without accounting for the wattage difference may affect circuit load.
Because the 12961 carries a Philips part number rather than a universal ANSI code, cross-referencing to equivalent bulbs from other manufacturers requires confirming the W2.1x9.5d base and 5W rating rather than relying on the part number alone.