Ford F-150 Side Marker Bulb Size

Additional Notes

• The 168 bulb is the most widely used front side marker bulb across the Ford F-150 specification range, covering model years 2011-2022 and also 2013-2014 without any headlamp condition noted. It is a T10 miniature wedge type rated at 12V and 4.9W under the ANSI standard.
• The 194 bulb shares the same T10 miniature wedge form factor as the 168 but draws less power at 3.78W versus 4.9W. Despite this physical similarity, the two are listed as separate sizes and serve different model years in the front side marker position.
• For the Ford F-150 front side marker, model years 2015-2020 specify the 168 bulb exclusively with the condition "With Halogen Capsule Headlamps," indicating that this fitment applies only to trucks equipped with that headlamp configuration.
• The 194 bulb appears in the front side marker position for model years 2004-2010 and again across a long earlier range from 1975-1988 and 1992-1994, making it the most historically recurring front side marker bulb in the specification set.
• The 916NA bulb, specified for the 1995-1996 F-150 front side marker, is a T15 wedge type with natural amber glass built into the bulb itself. At 18W, it produces its amber color through the glass rather than through a colored lens or housing.
• The 3157 and 4057 are both dual-filament T25 wedge bulbs rated at 12V with identical wattage values of 27W and 7W for their respective filaments. The 3057 shares this same wattage profile and T25 form, and all three appear in the rear side marker position across various F-150 model years.
• For the 2006-2008 F-150 rear side marker, both the 4057 and 3057 are listed simultaneously, indicating that either bulb was used depending on the specific production variant of the truck during those years.
• The 1157 bulb, specified for the 1987 F-150 rear side marker, uses a BAY15d bayonet base rather than a wedge base. This base type is physically incompatible with wedge-socket housings, making it non-interchangeable with the 194 or other wedge bulbs used in surrounding model years.
• The 1895 bulb, listed for the 1980 F-150 rear side marker, is a T5 miniature wedge type rated at only 0.9W, which is substantially lower output than any other bulb in the specification set. It is not interchangeable with the T10 or T25 wedge bulbs used in other positions or years.
• The rear side marker position for the 2015-2020 F-150 specifies the 3157, a dual-filament bulb, whereas the front side marker for the same years uses the single-filament 168. The dual-filament design of the 3157 provides separate circuits for marker and signal functions within a single bulb.