Saturn SC1 front turn signal bulbs utilize 3357NA, 3457NA, or 3157NA sizes, while rear turn signal bulbs require 1156 size bulbs. The replacement chart covers 1993 through 2002 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The rear turn signal position on the Saturn SC1 uses the 1156 bulb across all model years from 1993-2002, making it the most consistently specified bulb in these fitment records.
The 1156 is a single-filament bulb rated at 12V and 21W, fitted with a BA15s bayonet base, which is a single-contact base with one locating pin to prevent incorrect installation orientation.
The front turn signal position uses three distinct bulb types across the SC1's production span, with the 3157NA specified for 1993-1994, the 3457NA for 1995-2001, and the 3357NA for the 2002 model year.
All three front turn signal bulb types share the T25 wedge form factor and natural amber glass construction, with natural amber glass producing the amber color through the glass itself rather than through a coating or lens.
The 3457NA and 3157NA are both dual-filament bulbs rated at 12V with a 27W high filament and a 7W low filament, which allows a single bulb to serve both turn signal and parking light functions simultaneously.
The 3357NA specified for the 2002 Saturn SC1 front turn signal is a single-filament bulb rated at 12V and 27W, unlike the dual-filament types used in prior model years for the same position.
Although the 3157NA and 3457NA share identical wattage ratings and the same T25 wedge base, they are distinct part numbers and are not confirmed as interchangeable for the SC1 without verifying socket and contact compatibility.
All four bulb types in these specifications conform to ANSI standards applicable in both the United States and Canada, indicating standardized electrical and photometric performance requirements.