Chevrolet Suburban Brake Bulb Size

Chevrolet Suburban brake bulb sizes include 7440, 3057, and 3157, with center high mount stop light bulbs in 921 and 912 sizes. The replacement chart covers vehicle production years from 1950 through 2023 with corresponding bulb specifications.

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

Brake

YearsBulb Size
2015-20237440
2007-20143057
2001-20063157
20003057 (Early Model)
3157 (Late Model)
1992-19993057
1983-19912057
1979-19821157
1964-1978198
1960-19631034
1956-19571034
1954-19551129 (Except Panel)
1154 (Panel)
1950-19531129

Center High Mount Stop Light

YearsBulb Size
2000-2004921 (2500 only, Inner)
912 (2500 only, Outer)

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W.7440
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.3057
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.3157
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W.2057
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.1157
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.198
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.1034
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.1129
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Older variant of 1157. 6V/12V.1154
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.921
ANSI standard (US & Canada). Wedge bulb (T15). Variant of 921. 12V, 12W.912

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