Dodge 880 Map Light Bulb Size

The Dodge 880 map light requires bulb size 90 or 1004 depending on the specific version of the vehicle. Data for the bulb sizes covers the range from 1962 to 1965.

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
1965	1004
1963-1964	90
1962	1004

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.	1004
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 13W.	90

Other Locations

Additional Notes

The Dodge 880 map light uses two distinct bulb types across its 1962-1965 model years: the 1004 and the 90, both of which are ANSI-standardized bulbs for the US and Canadian markets.
The 1004 bulb is a dual-filament type rated at 12V and 21/5W, mounted on a BAY15d bayonet base, and is considered a variant of the more widely known 1157 bulb.
The 90 bulb is a single-filament type rated at 12V and 13W, mounted on a BA15s bayonet base.
The BAY15d base of the 1004 and the BA15s base of the 90 are physically distinct and not interchangeable, as the BAY15d features offset pins to accommodate its dual-filament design while the BA15s uses a single-contact configuration.
The 1963-1964 Dodge 880 map light takes the 90 bulb, whereas the 1962 and 1965 model years take the 1004 bulb.
Because the 1004 is a variant of the 1157, it shares the same BAY15d base, though substitution between the two should account for any differences in wattage ratings specific to the application.