Chevrolet Suburban Back Up Light Bulb Size
Chevrolet Suburban back up light bulb sizes include 921, 7441, and 3157 specifications across multiple generations. The replacement chart covers vehicle production from 1969 through 2023.
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.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2015-2023 | 921 | W16W | Check Price |
| 2007-2014 | 7441 | 7441 | Check Price |
| 2001-2006 | 3157 | P27/7W | Check Price |
| 2000 | 2456 (Early Model) | 2456 | Check Price |
| 3157 (Late Model) | P27/7W | Check Price | |
| 1998-1999 | 3156 | P27W | Check Price |
| 1993-1997 | 2456 | 2456 | Check Price |
| 1992 | 3156 | P27W | Check Price |
| 1977-1991 | 1156 | P21W | Check Price |
| 1975-1976 | 199 | 199 | Check Price |
| 1969-1974 | 1156 | P21W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 | Check Price |
| ANSI standard (US & Canada). Single-filament wedge bulb (T20), amber. 12V, 21W. | 7441 | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3157 | Check Price |
| ANSI standard (US & Canada). Festoon bulb, specialty application. 12V. | 2456 | Check Price |
| ANSI standard (US & Canada). Single-filament wedge bulb (T25). 12V, 27W. | 3156 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 | Check Price |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W. | 199 | Check Price |