Buick Century Turn Signal Bulb Size
Buick Century front and rear turn signal bulbs utilize sizes 4157NA, 5702AK, 2057NA, 3057, 2057, and 1157, with bulb specifications varying across production generations. The replacement chart covers 1954 through 2005 model years with corresponding bulb size data.
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 |
|---|---|---|---|
| 2001-2005 | 4157NA | PY27/7W | Check Price |
| 2000 | 5702AK | 5702AK | Check Price |
| 1997-1999 | 4157NA | PY27/7W | Check Price |
| 1982-1985 | 2057NA | P21/5W | Check Price |
| 1979-1981 | 1034NA | 1034NA | Check Price |
| 1977-1978 | 1157NA | P21/5W | Check Price |
| 1974-1976 | 1034NA | 1034NA | Check Price |
| 1973 | 1157NA | P21/5W | Check Price |
| 1954-1958 | 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 |
|---|---|---|---|
| 1997-2005 | 3057 | 3057 | Check Price |
| 1982-1985 | 2057 | 2057 | Check Price |
| 1973-1981 | 1157 | P21/5W | Check Price |
| 1958 | 1034 | 1034 | Check Price |
| 1954-1957 | 1073 | 1073 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| 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 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. Variant of 1157. 12V, 21/5W. | 1034NA | 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. Variant of 1157. 12V, 21/5W. | 1034 | 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 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 1073 | Check Price |