Pontiac GTO Turn Signal Bulb Size
Pontiac GTO front and rear turn signal bulbs utilize sizes 1157NA, 1034NA, 1157, and 1156NA depending on generation and position. The replacement chart covers 1964 through 2006 model years with corresponding bulb size specifications.
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 |
|---|---|---|---|
| 2005-2006 | 1157NA | P21/5W | Check Price |
| 2004 | 1034NA | 1034NA | Check Price |
| 1973 | 1157 | P21/5W | Check Price |
| 1972 | 1034NA | 1034NA | Check Price |
| 1971 | 1157NA | P21/5W | Check Price |
| 1970 | 1034NA | 1034NA | Check Price |
| 1969 | 1157NA | P21/5W | Check Price |
| 1967-1968 | 1034NA | 1034NA | Check Price |
| 1965-1966 | 1157NA | P21/5W | Check Price |
| 1964 | 1157 | P21/5W | Check Price |
Rear Turn Signal
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2004-2006 | 1156NA | PY21W | Check Price |
| 1964-1973 | 1157 | P21/5W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W. | 1157NA | 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. 12V, 21W/5W. | 1157 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base, natural amber glass. 12V, 21W. | 1156NA | Check Price |
| ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W. | PY21W | Check Price |