Toyota Previa Turn Signal Bulb Size

Toyota Previa front turn signal bulbs utilize 1034NA, 1157NA, or P21W sizes, while rear turn signal bulbs use 1156 size. The replacement chart covers 1991 through 1997 production 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
1996-1997	1034NA	1034NA	Check Price
1994-1995	1157NA	P21/5W	Check Price
1993	1034NA	1034NA	Check Price
1991-1992	1156	P21W	Check Price

Rear Turn Signal

Years	US Type	EU Type	Shop
1991-1997	1156	P21W	Check Price

Bulb Specifications

Description	Type	Shop
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
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

Other Locations

Additional Notes

The 1156 bulb is the sole rear turn signal bulb across all Toyota Previa model years covered in the specifications (1991-1997), making it the most consistently applied bulb in this dataset. It follows the ANSI standard used in the US and Canada, operates at 12V with a 21W single filament, and uses a BA15s bayonet base.
The front turn signal position shows three distinct bulb types across the same 1991-1997 span: P21W for 1991-1992, 1034NA for 1993 and 1996-1997, and 1157NA for 1994-1995. This variation means the front turn signal bulb is not interchangeable across all model years without confirming the specific year first.
The 1034NA and 1157NA are both dual-filament bulbs sharing the BAY15d bayonet base and natural amber glass construction. Both operate at 12V with a 21W/5W output, and both conform to the ANSI standard. The 1034NA is described as a variant of the 1157, which is a separate bulb from the 1157NA.
The P21W, used in the Toyota Previa front turn signal for 1991-1992, follows the ECE standard rather than the ANSI standard. It is a single-filament bulb rated at 12V and 21W with a BA15s bayonet base, the same base type as the 1156 rear bulb, though the two serve different positions and are governed by different standards.
Although the 1156 and P21W share the BA15s bayonet base and both operate at 12V/21W as single-filament bulbs, they are not classified under the same standard. The 1156 is an ANSI-designated bulb, while the P21W carries ECE designation. Physical interchangeability does not imply regulatory or manufacturer-specified equivalence.
The BAY15d base used by the 1034NA and 1157NA differs from the BA15s base used by the 1156 and P21W. The BAY15d base features offset locating pins to accommodate dual-filament operation, while the BA15s base has a single locating pin suited to single-filament bulbs. These two base types are not physically interchangeable.
The natural amber glass of the 1034NA and 1157NA produces an amber-colored output directly from the bulb itself, without relying on a colored lens housing. This characteristic is relevant when the front turn signal housing of the Toyota Previa uses a clear or non-tinted lens for those model years.