Mercury Lynx Map Light Bulb Size

The Mercury Lynx map light utilizes 906 and 1816 bulb sizes for the interior lighting system. Data for the specified vehicle components covers the period from 1981 through 1987.

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
1987	906
1983-1986	1816
1981	906

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	906
ANSI standard (US & Canada). Miniature wedge bulb (T3.25). 12V, 4W.	1816

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Additional Notes

The Mercury Lynx map light specifications cover model years 1981-1987, with two distinct bulb types used across that span.
The 1816 bulb is the more frequently specified of the two, appearing in the Mercury Lynx across the 1983-1986 model years.
Both the 906 and 1816 are ANSI-standardized miniature wedge bulbs rated at 12 volts, making them compatible with standard automotive electrical systems.
The 906 bulb follows the T10 wedge form factor, while the 1816 follows the smaller T3.25 form factor. These two profiles are not interchangeable despite both using a wedge-style base.
The 906 is rated at 8 watts, whereas the 1816 is rated at 4 watts, meaning the 906 draws twice the current of the 1816 at the same operating voltage.
The Mercury Lynx (1987) uses the 906 bulb for the map light, which differs from the 1816 specified for the immediately preceding model year.
The 1981 Mercury Lynx also specifies the 906 bulb, placing it in agreement with the 1987 specification despite the intervening years using the 1816.
Both bulb types carry ANSI standardization applicable to the US and Canadian markets, indicating broad retail availability across those regions.