The Lincoln LS brake light uses 2458 and 3157 bulb sizes according to the provided specifications for the lighting system. Data for the bulb sizes covers the range from 2000 to 2006.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Lincoln LS uses the 3157 bulb for brake lighting across all model years from 2000 to 2006.
The 3157 is a dual-filament T25 wedge bulb rated at 12V with a 27W high filament and a 7W low filament, conforming to ANSI standards for the US and Canadian markets.
The dual-filament design of the 3157 allows a single bulb to serve two lighting functions, typically combining stop and tail light operation within one housing.
The Center High Mount Stop Light on the Lincoln LS uses the 3155 bulb for the 2000-2002 model years.
The 3155 is a single-filament T25 wedge bulb rated at 12V and 27W, also conforming to ANSI standards for the US and Canadian markets.
Although the 3157 and 3155 share the same T25 wedge base and 12V/27W rating, they are not interchangeable. The 3157 carries a second filament at 7W, while the 3155 does not, making the two electrically distinct.
Substituting a 3157 for a 3155 in the Center High Mount Stop Light socket may cause fitment or circuit compatibility issues, as the socket is wired for a single-filament configuration.