The Mitsubishi 3000GT brake light uses 1157 and 2057 bulb sizes depending on the specific production period for the vehicle. Available data for the lighting components covers the range from 1991 to 1999.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mitsubishi 3000GT uses the 2057 bulb for the brake light across the 1993-1999 model years, making it the most frequently specified bulb in these specifications.
The 2057 is a dual-filament bulb with a BAY15d bayonet base, rated at 12V with a high-filament draw of 26.9W and a low-filament draw of 8W.
The 1991-1992 Mitsubishi 3000GT uses the 1157 bulb for the brake light rather than the 2057 found in later model years.
The 1157 shares the same BAY15d bayonet base as the 2057 but operates at lower wattage, rated at 12V with filaments drawing 21W and 5W respectively.
Although the 2057 and 1157 share the same BAY15d base type, they are not identical in output, as the 2057 draws noticeably more wattage on its high filament.
The center high mount stop light on the 3000GT uses one of two distinct bulb types depending on the model year, with the 1156 specified for 1994-1995 and 1997-1999, and the 168 specified for 1991-1993 and 1996.
The 1156 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 21W, and is not interchangeable with the dual-filament 1157 or 2057 despite a similar base appearance.
The 168 is a miniature wedge bulb of the T10 form factor, rated at 12V and 4.9W, which represents a significantly lower wattage output than the 1156 used in other model years for the same center high mount stop light position.