Sterling 825 high beam headlight bulbs use 9005 size while low beam headlight bulbs use 9006 size. The replacement chart covers 1987 to 1988 vehicle production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Sterling 825 uses the 9005 bulb for high beam headlights across both the 1987-1988 model years.
The 9005 is a single-filament halogen bulb rated at 12V and 65W, fitted with a P20d base, and meets ANSI standards for the US and Canadian markets.
Low beam headlights on the Sterling 825 use the 9006 bulb across the same 1987-1988 model years.
The 9006 is a single-filament halogen bulb rated at 12V and 55W, fitted with a P22d base, and also carries ANSI certification for the US and Canadian markets.
Although the 9005 and 9006 are both single-filament halogen bulbs operating at 12V, they differ in wattage and base type, with the 9005 drawing 65W through a P20d base and the 9006 drawing 55W through a P22d base.
The differing base types between the 9005 and 9006 mean the two bulbs are not physically interchangeable, as the P20d and P22d bases are distinct fittings that prevent cross-installation.