Oldsmobile 98 Map Light Bulb Size

The Oldsmobile 98 map light utilizes bulb sizes 90, 194, 561, 562, 906, 1004, and 1895 across various production periods. Available data for the specified lighting components covers the time range from 1962 through 1996.

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
1991-1996	906
1988-1990	562
1987	561
1985-1986	562
1980-1984	1004
1974-1978	1004
1971	194
1967	1895
1962-1966	90

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	906
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	561
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.	1004
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
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

Other Locations

Additional Notes

The Oldsmobile 98 map light uses three distinct bulb types across its model history: wedge-base bulbs, festoon bulbs, and bayonet-base bulbs, reflecting changes in interior lighting design over several decades.
The 906 bulb is a T10 miniature wedge type rated at 12V and 8W under the ANSI standard. It serves as the map light bulb for the Oldsmobile 98 across the 1991-1996 model years.
The 562 bulb is a 44mm festoon type with end-cap contacts, rated at 12V and 12W. It is the specified map light bulb for the 1985-1990 model years, with the exception of 1987.
The 1987 Oldsmobile 98 uses the 561 bulb rather than the 562. Both are 44mm festoon bulbs with end-cap contacts rated at 12V and 12W under the ANSI standard, making them technically near-identical in construction and output.
The 1004 bulb is a dual-filament type with a BAY15d bayonet base, rated at 12V with a 21/5W output. It is described as a variant of the 1157 and is the specified map light bulb for the 1974-1984 model years, as well as 1975-1980 and 1978.
Because the 1004 carries a dual-filament design, it is not a direct drop-in replacement for single-filament bayonet bulbs, and its BAY15d base is offset-pin, meaning it is not interchangeable with BA15s single-contact bayonet sockets.
The 906 and 194 bulbs share the same T10 wedge base form factor, but they differ significantly in wattage. The 906 draws 8W while the 194 draws only 3.78W, making them non-interchangeable despite their physical similarity.
The 1895 bulb used in the 1967 Oldsmobile 98 is a T5 miniature wedge type rated at 12V and 0.9W, the lowest wattage of any bulb in these specifications. Its T5 base is smaller than the T10 wedge used by the 906 and 194, and the two wedge sizes are not interchangeable.
The 90 bulb is a single-filament type with a BA15s bayonet base, rated at 12V and 13W. It is the specified map light bulb for the 1962-1966 model years.
All bulb types listed across these specifications conform to ANSI standards applicable in both the United States and Canada.