The Lincoln Navigator brake light utilizes bulb sizes 4057, 4157, 2458, and 3157 depending on the specific production period. Available information covers a span from 1998 through 2014.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Lincoln Navigator uses three distinct bulb types across its brake light positions: dual-filament T25 wedge bulbs (3157, 4157, 4057) for the main brake lights, and smaller single-filament wedge bulbs (12961, 168, 912) for the center high mount stop light.
The 4057 bulb is a dual-filament T25 wedge type rated at 12V with a 27W high filament and 7W low filament, serving the main brake lights on the Lincoln Navigator from 2007-2014.
The 4157 and 3157 bulbs share the same T25 wedge form factor and identical 12V, 27W/7W electrical ratings as the 4057, though they are not interchangeable across all applications due to differences in base keying that prevent incorrect installation.
The main brake light position transitioned from the 3157 (1998-2004) to the 4157 (2005-2006) and then to the 4057 (2007-2014), reflecting three separate bulb designations across the production run despite matching wattage ratings.
The center high mount stop light on the Lincoln Navigator has used three different bulb types across its model years, indicating that this position is not consistent across generations.
The 912 bulb is a T15 wedge type rated at 12V and 12W, classified as a variant of the 921, and was specified for the center high mount stop light from 1998-2002.
The 12961 is a Philips part number rather than an ANSI standard designation, referencing a T10 miniature wedge bulb with a W2.1x9.5d base rated at 12V and 5W, used in the center high mount stop light for 2003-2006 and again for 2015-2018.
The 168 bulb is an ANSI-standard T10 miniature wedge rated at 12V and 4.9W, used in the center high mount stop light from 2007-2014, making it a lower-wattage alternative to the 12961 despite sharing the same T10 form factor.
The 168 and 12961 bulbs occupy the same T10 wedge form factor but carry different wattage ratings (4.9W versus 5W respectively), and their interchangeability depends on whether the base specifications of a given socket accommodate both.
The dual-filament design of the T25 brake bulbs (3157, 4157, 4057) allows a single bulb to serve both the running light and brake light functions, with the lower wattage filament active during normal operation and the higher wattage filament activating under braking.