4257NA Automotive Bulb
Description
The 4257NA is a 12.8-volt, amber-colored miniature halogen/incandescent automotive light bulb commonly used for front turn signals and parking lights in modern trucks and SUVs, particularly Ford models like the F-150, F-250/F-350 Super Duty, and Maverick.
- Voltage & Power: 12.8 V, ~28.54 W (approx. 2.42 A)
- Color: Natural Amber (ideal for use behind amber lenses)
- Base Type: Wedge base (T25 wedge compatible style)
- Common Applications: Front turn signals, parking lights, and side markers




