Saturn Relay high beam headlight bulbs use 9005 size while low beam headlight bulbs use H11 size. The replacement chart covers 2005 to 2007 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 Saturn Relay uses the 9005 bulb for high beam headlights across the 2005-2007 model years.
The 9005 is a single-filament halogen bulb rated at 12V and 65W, built to the ANSI standard used in the United States and Canada, and it uses a P20d base.
The low beam headlights on the 2005-2007 Saturn Relay take the H11 bulb, a single-filament halogen type rated at 12V and 55W with a PGJ19-2 base.
The H11 follows the ECE standard, which governs lighting regulations across Europe and much of the world, though it also carries approval for use in the United States.
Because the 9005 and H11 use different base types, P20d and PGJ19-2 respectively, the two bulbs are not interchangeable with each other.
The 9005 operates at 65W while the H11 operates at 55W, reflecting the higher power output typically associated with high beam applications compared to low beam.