The Oldsmobile Aurora uses a 9005 bulb size for high beam headlights and a 9006 bulb size for low beam headlights. The replacement chart covers vehicle production spanning 1995 to 2003.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Oldsmobile Aurora uses the 9005 bulb for high beam headlights across all listed model years, spanning 1995-1999 and 2001-2003.
The 9005 is a single-filament halogen bulb rated at 12V and 65W, fitted with a P20d base, and recognized under ANSI standards in the United States and Canada.
Low beam headlights on the Aurora use the 9006 bulb across the same model year range.
The 9006 is a single-filament halogen bulb rated at 12V and 55W, fitted with a P22d base, and also carries ANSI standardization for the US and Canadian markets.
Although the 9005 and 9006 are both single-filament halogen bulbs operating on a 12V system, their base types differ: the 9005 uses a P20d base while the 9006 uses a P22d base, making the two bulbs physically non-interchangeable between the high and low beam positions.
The 10-watt difference between the 9005 (65W) and the 9006 (55W) reflects a deliberate design distinction, as high beam applications generally require greater light output than low beam applications.