Opel Manta License Plate Bulb Size

The Opel Manta license plate light requires a specific 67 bulb size for proper installation and function within the rear housing. Available data for the bulb specifications covers the period from 1971 through 1975.

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
1971-1975	67

Bulb Specifications

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

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Additional Notes

The Opel Manta uses the ANSI 67 bulb for its license plate lighting across the 1971-1975 model years.
The 67 bulb operates on a 12-volt electrical system and draws 8 watts, placing it in the low-wattage range typical of auxiliary lighting applications such as license plate illumination.
It is a single-filament bulb, meaning it serves one lighting function only, with no secondary filament for an additional mode such as dimming or braking.
The 67 bulb uses a BA15s bayonet base, which is a single-contact bayonet mount. The "s" designation indicates a single contact pin, distinguishing it from the dual-contact BA15d variant.
The 67 is an ANSI-standardized bulb recognized in the United States and Canada, meaning it conforms to a defined set of electrical and physical parameters within those markets.
The 67 bulb is a lower-wattage variant of the 1156. While both share the BA15s bayonet base, the 1156 operates at a higher wattage and the two are not interchangeable without accounting for the difference in power draw and light output.