Oldsmobile Delmont 88 License Plate Bulb Size

The Oldsmobile Delmont 88 license plate light requires a bulb size of 97 for the specific lighting component. Data for the bulb size covers the range from 1967 to 1968.

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
1967-1968	97

Bulb Specifications

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

Other Locations

Additional Notes

The 1967-1968 Oldsmobile Delmont 88 uses the 97 bulb for the license plate position.
The 97 is an ANSI-standardized bulb recognized in both the United States and Canada.
It operates on a 12-volt system and draws 13 watts, placing it in the low-wattage range typical of exterior lighting applications that do not require high illumination output.
The 97 uses a BA15s bayonet base, which is a single-contact bayonet mount. The "s" designation indicates a single center contact at the base, as opposed to the dual-contact BA15d variant.
A single-filament construction means the 97 serves one lighting function only, with no secondary filament for a combined stop/tail or similar dual-purpose role.
The 97 is noted as a variant of the 1156 bulb. While the two share the BA15s base type, they differ in wattage, and the 97 is not a direct drop-in replacement for the 1156 in applications where wattage tolerance is a factor.