Plymouth Cuda Map Light Bulb Size

The Plymouth Cuda map light requires bulb size 89 or 1895 depending on the specific configuration of the interior lighting system. Data for the bulb sizes covers the range from 1970 to 1974.

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
1972-1974	89
1971	1895
1970	89

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W.	1895

Other Locations

Additional Notes

The Plymouth Cuda map light draws from two distinct ANSI-standard bulb types across its 1970-1974 model years: the 89 and the 1895.
The 89 bulb is a single-filament type mounted on a BA15s bayonet base, rated at 12V and 13W. The BA15s designation indicates a single-contact bayonet cap with a 15mm base width.
The 1895 is a miniature wedge bulb in a T5 form factor, rated at 12V and 0.9W. The T5 designation refers to a tubular bulb roughly 5/8 of an inch wide, considerably smaller than the 89.
The 89 bulb is described as a lower wattage variant of the 1156. While the two share the BA15s bayonet base, they are not interchangeable due to differences in wattage and light output.
The 89 bulb applies to the Plymouth Cuda for model years 1970 and 1972-1974, making it the more prevalent map light specification across this generation.
The 1971 Plymouth Cuda map light uses the 1895 wedge bulb rather than the 89. The 1895 operates at 0.9W, a fraction of the 13W rating of the 89, meaning the two types are not electrically or physically interchangeable.