Saturn SL1 front side marker bulbs utilize 168 and 24 bulb sizes, while rear side marker bulbs require 194 bulb size specifications. The replacement chart covers 1991 through 2002 production years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Saturn SL1 front side marker uses two distinct bulb sizes across its production run, with the bulb size 24 fitted to 1991-1995 models and the bulb size 168 fitted to 1996-2002 models.
The bulb 24 is a single-filament type with a BA9s bayonet base, rated at 12V and 2W. This base type is not interchangeable with wedge-style sockets, making it incompatible with the hardware used in later SL1 front marker positions.
The bulb 168 is a T10 miniature wedge type, rated at 12V and 4.9W. Its wedge base seats by friction into a matching socket, without pins or a locking collar.
Both the 168 and 194 bulbs share the T10 miniature wedge form factor and the same 12V operating voltage, which means they physically fit the same socket type.
Despite sharing the T10 wedge form factor, the 168 and 194 are not rated identically. The 168 draws 4.9W while the 194 draws 3.78W, a difference that affects brightness output in their respective positions.
The Saturn SL1 (1991-2002) rear side marker uses the bulb size 194 across all model years without variation, making it the only side marker position with a consistent fitment throughout the entire production span covered by these specifications.
All three bulb sizes listed, the 168, 24, and 194, conform to ANSI standards recognized in both the United States and Canada.
The front and rear side marker positions on the 1996-2002 SL1 both use T10 wedge bulbs, though the specific size numbers differ. Substituting one for the other would result in a wattage mismatch relative to the original specification.