Oldsmobile Deluxe 88 License Plate Bulb Size

The Oldsmobile Deluxe 88 license plate light uses bulb size 67 and bulb size 63 for the rear exterior illumination. Data for the specific lighting components covers the period from 1951 through 1956.

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
1953-1956	67
1951-1952	63

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 0.63W.	63

Other Locations

Additional Notes

The Oldsmobile Deluxe 88 license plate bulb specifications cover the 1951-1956 model years, with two distinct bulb types used across that span.
The bulb 67 is an ANSI-standardized single-filament type rated at 12 volts and 8 watts, fitted with a BA15s bayonet base, and is classified as a lower wattage variant of the more common 1156 bulb.
The Oldsmobile Deluxe 88 (1953-1956) uses the bulb 67 for the license plate position.
The BA15s base on the 67 bulb is a single-contact bayonet fitting, which is not interchangeable with dual-contact bayonet bases such as the BA15d.
The bulb 63 is an ANSI-standardized single-filament type rated at 12 volts and 0.63 watts, fitted with a BA9s miniature base.
The 1951-1952 Deluxe 88 uses the bulb 63 for the license plate position.
The BA9s base on the 63 bulb is a miniature bayonet fitting, physically distinct from the BA15s base on the 67 bulb, making the two types mutually incompatible in the same socket.
Both the 67 and 63 are recognized under ANSI standards applicable in the United States and Canada.