Lincoln Continental Back Up Light Bulb Size

Additional Notes

• The Lincoln Continental backup light specifications span model years 1958 through 2002, with four distinct bulb types appearing across that range: the 1156, 1141, 1076, 2356, 2456, and 3156.
• The 1156 is the most frequently specified bulb across the Lincoln Continental's model history, covering the majority of years from 1958 through 1990. It is a single-filament bulb with a BA15s bayonet base, rated at 12V and 21W.
• The 2456 is the second most common specification, appearing across multiple years in the 1989-1999 range. It is a festoon-style bulb rated at 12V, intended for specialty applications.
• The 2356 carries a dual-filament design with a BAY15d bayonet base, rated at 12V. Its dual-filament construction distinguishes it from the single-filament 1156, meaning the two are not interchangeable despite sharing a similar bayonet-style mounting format.
• The 3156 is a single-filament wedge bulb in the T25 form factor, rated at 12V and 27W. Its wedge base differs fundamentally from the bayonet base found on the 1156, 1141, and 1076, making cross-substitution between these types physically incompatible.
• The 1141 shares the BA15s bayonet base and 12V, 21W rating with the 1156, but the two are separate ANSI designations. The Lincoln Continental (1962 and 1964) specifies the 1141 rather than the 1156, indicating a distinction recognized at the fitment level despite the similar electrical ratings.
• The 1076 is specified solely for the 1972 Lincoln Continental. It uses the same BA15s bayonet base as the 1156 but is rated at only 8W, making it a lower-output variant that is not a direct electrical equivalent to the 1156.
• The BAY15d base on the 2356 has two offset pins, while the BA15s base on the 1156, 1141, and 1076 has a single pin. This physical difference prevents substitution between the 2356 and any BA15s-based bulb regardless of voltage compatibility.
• All six bulb types in these specifications conform to ANSI standards applicable in both the United States and Canada, indicating standardized sizing and base configurations within those markets.
• Three different bulb types are specified across the 1995-2002 model years of the Lincoln Continental, with the 3156 wedge, 2456 festoon, and 2356 dual-filament bayonet each appearing in that window, reflecting that no single bulb type covers the full span of those years.