Raptor Front Turn/Running Light Comparison
| KRYPTON | WATTS | AMPS | VOLTS | LIFE | BRIGHTNESS |
3157NA | ? | 26.8/6.7 | 2.1/0.47 | 12.8/14 | 2,000/10,000 | factory std |
4157NA | Yes | 28.5/8.3 | 2.23/0.59 | 12.8/14 | 3,600/10,000 | brighter than std |
3157NA was Ford factory bulb for the 2011 Raptor. NA designation indicates Natural Amber color.
4157NA is modern replacement for 3157NA. A little brighter, longer life, more vibration resistant.
All entries primary filament/secondary filament.
4157NA (and maybe also 3157NA) are halogen bulbs.
Do not touch the glass bare-handed.
This swap also produced favorable results. No noticeable change in the parking light intensity, but brighter turn signal intensity.