Plymouth Reliant Map Light Bulb Size

The Plymouth Reliant map light utilizes bulb sizes 168, 912, and 562 depending on the specific vehicle configuration. The provided data covers the range from 1981 through 1989.

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
1988-1989	168
1982-1987	912
1981	562

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Wedge bulb (T15). Variant of 921. 12V, 12W.	912
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562

Other Locations

Additional Notes

The Plymouth Reliant map light bulb specifications cover model years 1981 through 1989, with three distinct bulb types used across that span: the 168, 912, and 562.
The 912 bulb is the most frequently specified type in the Plymouth Reliant map light application, covering six consecutive model years from 1982 to 1987.
The 912 is a T15 wedge bulb rated at 12V and 12W, and it is classified as a variant of the 921 bulb under the ANSI standard used in both the US and Canada.
The 168 bulb is specified for the 1988 and 1989 model years. It is a T10 miniature wedge bulb rated at 12V and 4.9W, making it notably lower in wattage than the 912 it replaced in this application.
The 562 bulb is specified exclusively for the 1981 Plymouth Reliant. Unlike the wedge-type bulbs used in other years, the 562 is a festoon-style bulb with a 44mm length and end-cap contacts.
The festoon design of the 562 means it is physically incompatible with the wedge-style sockets used in later model years, as the two contact types are mechanically distinct.
The 912 and 168 are both wedge-base bulbs, but they differ in size and wattage. The 912 (T15) is a larger wedge than the 168 (T10), and the 912 draws 12W compared to the 168's 4.9W, meaning the two are not interchangeable despite sharing a wedge-base format.
All three bulb types in these specifications conform to ANSI standards recognized in both the US and Canada, indicating standardized electrical and physical ratings across the lineup.
The 912's classification as a variant of the 921 is a relevant fitment consideration, as the 921 is a common substitute referenced in many automotive applications, though the specifications here list the 912 specifically.