Dodge D100 Map Light Bulb Size

The Dodge D100 map light requires a bulb size of 562 for the interior lighting system. Data for the specific component covers the range from 1985 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	562
1985	562

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562

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Additional Notes

The 562 bulb is the sole map light bulb size listed for the Dodge D100 across all specified model years.
The years covered by these specifications are 1985, 1988, and 1989.
The 562 bulb follows the ANSI standard, meaning it conforms to the American National Standards Institute classification used across the United States and Canada.
It is a festoon-type bulb, a form factor characterized by a cylindrical body with metal end caps that make contact with spring-loaded holders on each end rather than a screw or bayonet base.
The bulb has a length of 44mm, which is the critical fitment factor for festoon bulbs, as the holder span must match this length for proper contact.
It operates at 12 volts and draws 12 watts, consistent with standard automotive low-voltage electrical systems.
Because festoon bulbs rely on physical length for fitment rather than a keyed base, substituting a festoon bulb of a different length would result in poor or no contact within the map light housing.