Oldsmobile Toronado Dome Light Bulb Size

Additional Notes

• The Oldsmobile Toronado dome light specifications cover model years 1966 through 1992, drawing from six distinct ANSI-standard bulb types across that span.
• The 562 and 561 are both 44mm festoon bulbs rated at 12V and 12W with end-cap contacts. Despite sharing identical physical and electrical ratings, they carry separate ANSI designations and are not confirmed as interchangeable within these specifications.
• The 562 bulb is specified for the Oldsmobile Toronado across the 1985-1992 model years, making it the most frequently recurring bulb type in these dome light specifications.
• The 561 bulb covers the 1980-1984 model years, along with the isolated 1975 model year, and shares its 44mm festoon form factor and 12V/12W rating with the 562.
• The 211-2 and 212-2 are both 41mm festoon bulbs with an SV8.5 base, rated at 12V and 12W. As with the 562 and 561 pairing, these two share identical physical and electrical characteristics while holding separate ANSI designations.
• The SV8.5 base found on the 211-2 and 212-2 bulbs is a specific festoon base type, distinct from the plain end-cap contacts of the 561 and 562. This base difference means the two festoon families are not physically interchangeable despite sharing the same wattage and voltage.
• The 161 is a T10 miniature wedge bulb rated at 12V and 1W, a significantly lower wattage than all other bulb types listed in these specifications. It is specified solely for the 1971 model year.
• The 1004 is a dual-filament bulb with a BAY15d bayonet base, rated at 12V with filaments at 21W and 5W. It is noted as a variant of the 1157 and is specified for the 1966-1967 model years.
• The BAY15d bayonet base of the 1004 bulb represents a fundamentally different mounting type from the festoon and wedge bases found in all other years, meaning it is physically incompatible with sockets designed for those bulb families.
• Across the full model range, three distinct base types are represented: end-cap festoon contacts (561, 562), the SV8.5 festoon base (211-2, 212-2), the T10 wedge base (161), and the BAY15d bayonet base (1004), indicating that the Toronado dome light socket changed multiple times over its production run.