Chevrolet Impala Turn Signal Bulb Size
Chevrolet Impala front and rear turn signal bulbs utilize sizes 7444NA, 7443NA, 4157NA, 7443, 3057, and 2057 depending on generation, with the bulb specifications varying across multiple production generations. The replacement chart covers vehicle data spanning 1958 through 2020, detailing bulb sizes for each model year range.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Turn Signal
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 |
|---|---|---|---|
| 2019-2020 | 7444NA | WY21/5W | Check Price |
| 2014-2018 | 7443NA | WY21/5W | Check Price |
| 2009-2013 | 4157NA | PY27/7W | Check Price |
| 2008 | 5702AK | 5702AK | Check Price |
| 2007 | 4157NA | PY27/7W | Check Price |
| 2006 | 5702AK | 5702AK | Check Price |
| 2004-2005 | 3457NA | PY27/7W | Check Price |
| 2003 | 3357NA | 3357NA | Check Price |
| 2001-2002 | 3457NA | PY27/7W | Check Price |
| 2000 | 3357NA | 3357NA | Check Price |
| 1994-1996 | 2057NA | P21/5W | Check Price |
| 1983-1985 | 2057NA | P21/5W | Check Price |
| 1982 | 1157NA | P21/5W | Check Price |
| 1980-1981 | 1034NA | 1034NA | Check Price |
| 1979 | 1157NA | P21/5W | Check Price |
| 1978 | 1034NA | 1034NA | Check Price |
| 1977 | 1157NA | P21/5W | Check Price |
| 1976 | 1034NA | 1034NA | Check Price |
| 1975 | 1157NA | P21/5W | Check Price |
| 1974 | 1034NA | 1034NA | Check Price |
| 1964-1973 | 1157 | P21/5W | Check Price |
| 1958-1963 | 1034 | 1034 | Check Price |
Rear Turn Signal
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 |
|---|---|---|---|
| 2014-2020 | 7443 | W21/5W | Check Price |
| 2000-2013 | 3057 | 3057 | Check Price |
| 1994-1996 | 2057 | 2057 | Check Price |
| 1983-1985 | 2057 | 2057 | Check Price |
| 1964-1982 | 1157 | P21/5W | Check Price |
| 1958-1963 | 1034 | 1034 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W. | 7444NA | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W. | 7443NA | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 4157NA | Check Price |
| Sylvania part number for a coated variant of the ANSI 3157 bulb. Dual-filament wedge bulb (T25), amber coating. 12V, 27W/7W. | 5702AK | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3457NA | Check Price |
| ANSI standard (US & Canada). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W. | 3357NA | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Brighter variant of 1157. 12V, 26.9W/8W. | 2057NA | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W. | 1157NA | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Variant of 1157. 12V, 21/5W. | 1034NA | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W. | 1034 | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T20). 12V, 21W/5W. | 7443 | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3057 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W. | 2057 | Check Price |