Isuzu Impulse Turn Signal Bulb Size
The Isuzu Impulse front and rear turn signal bulbs utilize 1157 size specifications, with rear applications also accommodating 1157, P21W, and 1073 bulb sizes. The replacement chart covers 1983 through 1992 production 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
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1983-1992 | 1157 | P21/5W | 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 |
|---|---|---|---|
| 1988-1992 | 1157 | P21/5W | Check Price |
| 1986-1987 | 1156 | P21W | Check Price |
| 1985 | 1073 | 1073 | Check Price |
| 1984 | 1156 | P21W | Check Price |
| 1983 | 1073 | 1073 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | 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. 12V, 21W. | 1156 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 1073 | Check Price |