Oldsmobile Jetstar I License Plate Bulb Size

The Oldsmobile Jetstar I license plate light requires bulb size 97 or 1155 depending on the specific application. Data for the bulb sizes covers the range from 1964 to 1965.

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
1965	97
1964	1155

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	97
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.	1155

Other Locations

Additional Notes

The 1965 Oldsmobile Jetstar I uses a 97 bulb for the license plate position, while the 1964 model uses a 1155 bulb.
Both the 97 and 1155 are ANSI-standardized bulb types recognized in the United States and Canada.
Each bulb type uses a BA15s bayonet base, which is a single-contact base with a 15mm collar and a single locating pin on the side.
Both bulb types are single-filament designs, meaning they serve one lighting function rather than switching between two brightness levels.
Both the 97 and 1155 are variants of the 1156 bulb, sharing the same BA15s base but differing in wattage output.
The 97 bulb operates at 12V and 13W, while the 1155 operates at 12V and 21W, making the 1155 a notably higher-wattage option despite the shared base type.
Although the 97 and 1155 share the same BA15s bayonet base, their wattage difference means they are not interchangeable without accounting for the electrical load difference in the circuit.