Saab 9-3 Parking Light Bulb Size

The Saab 9-3 parking light utilizes bulb sizes 12961 and 1034NA and 1157NA according to the provided specifications. Data for the listed components covers the range from 1999 through 2011.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2003-2011	12961
2000-2002	1034NA
1999	1157NA

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Variant of 1157. 12V, 21/5W.	1034NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W.	1157NA

Other Locations

Additional Notes

The Saab 9-3 parking light bulb specifications cover model years 1999 through 2011, with two distinct bulb types used across that span depending on the year.
The 12961 is a Philips-designated miniature wedge bulb in the T10 form factor, fitted with a W2.1x9.5d base and rated at 12V and 5W. Its wedge base design means it is held in place by friction rather than a locking mechanism.
The Saab 9-3 uses the 12961 bulb for the 2003-2011 model years, making it the most consistently specified parking light bulb across this vehicle's production history in these data.
The 1034NA and 1157NA are both ANSI-standardized dual-filament bulbs sharing the BAY15d bayonet base and natural amber glass construction. The BAY15d base uses two offset pins to ensure correct orientation during installation.
The 1034NA is specified for the 2000-2002 Saab 9-3, while the 1157NA applies to the 1999 model year. Both carry a 12V, 21W/5W dual-filament rating, with the higher wattage filament serving the brighter function and the lower serving the parking or running light function.
The 1034NA is described as a variant of the 1157NA. Despite their close relationship, they are listed as separate part numbers under the ANSI standard, and the specifications treat them as distinct fitments for different model years.
The transition from the dual-filament 1034NA to the single-filament 12961 between the 2002 and 2003 model years represents a significant change in bulb architecture, as the 12961 operates on a single 5W filament with no secondary circuit.
The natural amber glass of the 1034NA and 1157NA produces an amber-tinted output without the use of a colored lens or coating, a construction method associated with compliance in certain North American lighting regulations, as reflected in the "NA" suffix denoting US and Canada applicability.
The W2.1x9.5d base of the 12961 is a metric wedge base designation, where the numbers describe the pin spacing and insertion depth. This base type is not interchangeable with the BAY15d bayonet base used by the 1034NA and 1157NA.
Because the 12961, 1034NA, and 1157NA each use a physically incompatible base type, none of the three bulbs specified across the Saab 9-3's model years are directly interchangeable with one another without modification to the socket.