The Ford Edge brake light utilizes 3157 and 4157 bulb sizes according to the provided specifications for the vehicle. Available information covers the period from 2007 through 2015.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ford Edge brake light circuit uses two ANSI-standard dual-filament bulb types across its model years: the 3157 and the 4157. Both share the same T25 wedge form factor and operate at 12V with a 27W/7W filament rating, where the higher wattage filament serves the brake function and the lower wattage filament serves the running light function.
The 4157 bulb was fitted to the Ford Edge (2007-2010) for the standard brake light positions. The 3157 replaced it from 2011 onward through the 2015 model year.
Although the 3157 and 4157 share identical voltage and wattage ratings as well as the same T25 wedge base, they are distinct ANSI part numbers and are not confirmed as interchangeable within these specifications.
The 2015 Ford Edge carries a production date qualifier for its brake bulb fitment. The 3157 specification applies only to vehicles produced up to December 24, 2014, indicating a mid-cycle change occurred within that model year.
The center high mount stop light (CHMSL) on the Ford Edge (2007-2010) uses the 12961 bulb, a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
The 12961 is a single-filament bulb, consistent with its application in the CHMSL, which functions only as a stop light and does not serve a dual running-light role.
The T10 form factor of the 12961 is physically smaller than the T25 form factor used by the 3157 and 4157, making the three bulb types non-interchangeable despite sharing the same 12V operating voltage.