Buick Regal Turn Signal Bulb Size
Buick Regal front and rear turn signal bulb sizes include 7440NA, 12188, 4157NA for front applications and 7440, 3157, 3057 for rear applications, with each bulb size corresponding to specific vehicle configurations. The replacement chart covers 1973 through 2017 model years and details bulb size specifications across the vehicle's production span.
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 |
|---|---|---|---|
| 2014-2017 | 12188 (With HID Headlamps) | 12188 | Check Price |
| 7440NA (With Halogen Capsule Headlamps) | WY21W | Check Price | |
| 2012-2013 | 3457NA (With HID Headlamps) | PY27/7W | Check Price |
| 4157NA (With Halogen Capsule Headlamps) | PY27/7W | Check Price | |
| 2011 | 4157NA | PY27/7W | Check Price |
| 1997-2004 | 4157NA | PY27/7W | Check Price |
| 1988-1990 | 890 | 890 | Check Price |
| 1987 | 2057 | 2057 | Check Price |
| 1983-1986 | 2057NA | P21/5W | Check Price |
| 1981-1982 | 1157NA | P21/5W | Check Price |
| 1980 | 1034NA | 1034NA | Check Price |
| 1979 | 1157NA | P21/5W | Check Price |
| 1978 | 1157 | P21/5W | Check Price |
| 1975-1977 | 1157NA | P21/5W | Check Price |
| 1973-1974 | 1034NA | 1034NA | 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 |
|---|---|---|---|
| 2014-2017 | 7440 | W21W | Check Price |
| 2011-2013 | 3157 | P27/7W | Check Price |
| 1997-2004 | 3057 | 3057 | Check Price |
| 1990 | 3157 | P27/7W | Check Price |
| 1988-1989 | 3057 | 3057 | Check Price |
| 1983-1987 | 2057 | 2057 | Check Price |
| 1973-1982 | 1157 | P21/5W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| Philips part number. Halogen bulb, specialty application. 12V. | 12188 | Check Price |
| ANSI standard (US & Canada). Single-filament wedge bulb (T20), natural amber glass. 12V, 21W. | 7440NA | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3457NA | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 4157NA | Check Price |
| ANSI standard (US & Canada). Single-filament halogen bulb with PG13 base. 12V, 27W. | 890 | 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, 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). Single-filament wedge bulb (T20). 12V, 21W. | 7440 | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3157 | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3057 | Check Price |