Ford Bronco Back Up Light Bulb Size

The Ford Bronco back up light utilizes bulb sizes WT21W, 2456, 2356, P21W, 1156, and 199. Available information covers the range of 1972 through 2023 for the specified components.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

YearsUS TypeEU TypeShop
2021-2023WT21WWT21WCheck Price
199624562456Check Price
199523562356Check Price
1992-199424562456Check Price
1979-19911156P21WCheck Price
1978199199Check Price
19771156P21WCheck Price
1976199199Check Price
1974-19751156P21WCheck Price
1973199199Check Price
19721156P21WCheck Price

Bulb Specifications

Description Type Shop
Ford OEM part. Single-filament wedge bulb (T20). Originally used in 2021+ Ford F-150, Bronco, and Maverick. 12V, 21W.WT21WCheck Price
ANSI standard (US & Canada). Festoon bulb, specialty application. 12V.2456Check Price
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V.2356Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1156Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.P21WCheck Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.199Check Price

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