Chrysler 300 Map Light Bulb Size

The Chrysler 300 map light utilizes bulb sizes 578, 1895, 90, and 1004 across various production periods. Available data for the specified components spans from 1956 through 2023.

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
2021-2023	578
2011-2019	578
1971	1895
1967-1970	90
1956-1966	1004

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V, 12W.	578
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). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.	1004

Other Locations

Additional Notes

The Chrysler 300 map light uses the 578 bulb across the 2011-2023 model years, making it the most consistently specified bulb type in these fitment records.
The 578 is a festoon-style bulb with a 41mm length and end-cap contacts, operating at 12V and 12W under the ANSI standard applicable in the US and Canada.
Festoon bulbs make contact at both ends of the housing rather than through a base, which means the physical length of 41mm is a critical fitment factor when sourcing a replacement.
The 1004 bulb is specified for the Chrysler 300 across the 1956-1966 model years and carries a dual-filament design with a BAY15d bayonet base, operating at 12V with a 21/5W output.
The BAY15d base on the 1004 bulb features offset pins, which prevents it from being inserted in the same orientation as single-filament bayonet bulbs, making it non-interchangeable with BA15s-based types.
The 1004 is noted as a variant of the 1157, a widely recognized automotive bulb, though the two are not confirmed as direct substitutes within these specifications.
The 1967-1970 model years use the 90 bulb, a single-filament type with a BA15s bayonet base, rated at 12V and 13W.
The BA15s base on the 90 bulb uses a single contact pin, distinguishing it from the dual-pin BAY15d base of the 1004, and the two base types are not interchangeable.
The 1971 model year stands alone in specifying the 1895 bulb, a miniature wedge type in the T5 form factor, rated at 12V and just 0.9W, which reflects a substantially lower power draw than all other bulb types listed in these records.
All four bulb types across these specifications conform to ANSI standards recognized in the US and Canada, indicating a standardized designation system rather than proprietary part numbering.