Plymouth Scamp Map Light Bulb Size

The Plymouth Scamp map light requires bulb size 89 or 562 depending on the specific application. Data for the bulb sizes covers the range from 1971 to 1983.

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
1983	562
1971-1976	89

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89

Other Locations

Additional Notes

The Plymouth Scamp map light specifications cover model years 1971-1976 and 1983, with two distinct bulb types used across those years.
The bulb 89 is the predominant type in these specifications, appearing across six consecutive model years from 1971-1976.
The 89 bulb operates at 12V and 13W, using a BA15s bayonet base, which is a single-contact base with a 15mm barrel and a single locating pin to ensure consistent orientation during installation.
The BA15s base on the 89 bulb makes it a lower-wattage variant of the 1156 bulb family, meaning the two share a base type but are not interchangeable due to their wattage difference.
The 1983 Plymouth Scamp map light uses the 562 bulb, which is a festoon-style lamp rather than a bayonet-base unit, representing a different physical format from the 89.
A festoon bulb, such as the 562, is cylindrical in form and makes electrical contact through metal caps at each end rather than through a base socket, requiring a holder that grips both ends of the bulb.
The 562 festoon bulb has a 44mm length and operates at 12V and 12W, placing it at slightly lower wattage than the 89 used in earlier model years.
Both the 89 and 562 are ANSI-standardized bulbs recognized in the US and Canada, meaning their specifications conform to a defined industry standard rather than being proprietary to a single manufacturer.
The physical mounting difference between the BA15s bayonet base of the 89 and the end-cap contacts of the 562 means the two bulb types are not interchangeable, as each requires a different socket or holder design.