The Saturn SW1 side marker requires a 168 bulb size for proper installation and function within the lighting assembly. Data for the specified component covers the range from 1996 to 1999.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Saturn SW1 uses three distinct bulb types across its front and rear side marker positions: the 168, the 24, and the 194, all of which conform to ANSI standards applicable in both the United States and Canada.
The 168 and 194 bulbs share the same T10 miniature wedge base format, meaning both are physically installed without a separate socket or bayonet fitting. Despite this shared form factor, the two bulbs are not electrically identical and are not interchangeable.
The 168 bulb operates at 12V and draws 4.9W, while the 194 operates at 12V and draws 3.78W. The wattage difference means substituting one for the other would alter the current draw at that circuit position.
The 24 bulb uses a BA9s base, a small single-pin bayonet fitting, which is physically incompatible with the T10 wedge sockets used by the 168 and 194 bulbs. This makes the 24 bulb non-interchangeable with either of the other two types found in the SW1.
The Saturn SW1 (1996-1999) uses the 168 bulb in both the front and rear side marker positions, making it the only bulb type required for all side marker locations on those model years.
For the 1993-1995 Saturn SW1, the front and rear side marker positions require different bulb types. The front uses the 24 bulb with a BA9s base, while the rear uses the 194 T10 wedge bulb.
The transition from the 24 bulb to the 168 bulb in the front side marker position occurred between the 1995 and 1996 model years, representing a change in both base type and wattage at that location.
The transition from the 194 bulb to the 168 bulb in the rear side marker position also occurred between the 1995 and 1996 model years, reflecting a shift to a single bulb type across both side marker positions for the later production run.