Dodge Polara Map Light Bulb Size

The Dodge Polara Map Light utilizes bulb sizes 1895, 90, 89, and 1004 depending on the specific version of the vehicle. Available information covers the period from 1960 through 1971.

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	1895
1969-1970	90
1968	89
1966-1967	90
1965	1004
1963-1964	90
1960-1962	1004

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W.	1895
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 13W.	90
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.	1004

Other Locations

Additional Notes

The map light specifications for the Dodge Polara span model years 1960 through 1971, covering a twelve-year production period across three distinct bulb types.
The ANSI 90 bulb is the most frequently specified type across this range, appearing in seven of the twelve model years: 1963-1964, 1966-1967, and 1969-1970.
The ANSI 90 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 13W. The BA15s base features a single contact pin, which physically prevents substitution with dual-contact bayonet bulbs.
The ANSI 1004 bulb appears in the 1960-1962 and 1965 Polara. It is a dual-filament bulb with a BAY15d bayonet base, rated at 12V with a 21/5W output across its two filaments.
The BAY15d base of the 1004 uses offset pins to distinguish it from the BA15s base used by the 90. These two base types are not interchangeable despite their similar appearance.
The 1004 is described as a variant of the 1157, meaning it shares the same dual-filament BAY15d configuration but differs in specific electrical output values.
The 1971 Dodge Polara is the sole model year specified with the ANSI 1895 bulb, a miniature wedge-base T5 type rated at 12V and 0.9W. At 0.9W, it draws considerably less power than either the 90 or the 1004.
The ANSI 89 bulb appears exclusively in the 1968 Polara. Like the 90, it uses a BA15s bayonet base and is rated at 12V and 13W, and is noted as a lower wattage variant of the 1156.
The 89 and 90 share the same BA15s base type and identical voltage and wattage ratings, which may affect substitution decisions, though they remain distinct ANSI designations.
The wedge base of the 1895 used in the 1971 model is mechanically incompatible with the bayonet bases specified for all other Polara model years in this range.