The Mazda CX-7 high beam headlight uses a 9005 bulb size, while low beam headlights require either H7 or D2S bulb sizes depending on configuration. The replacement chart covers vehicle production years spanning 2007 to 2012 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 Mazda CX-7 uses the 9005 bulb for the high beam headlight across all model years from 2007-2012, making it the only high beam fitment for this vehicle throughout its entire production run.
The 9005 is an ANSI-standard single-filament halogen bulb rated at 12V and 65W, fitted with a P20d base. Its ANSI classification reflects its primary use in North American markets.
The low beam headlight on the Mazda CX-7 varies by headlamp system type. Vehicles equipped with halogen capsule headlamps use the H7 bulb, while those fitted with HID headlamps use the D2S bulb. This distinction applies across all model years from 2007-2012.
The H7 is an ECE-standard single-filament halogen bulb rated at 12V and 55W, using a PX26d base. Although it originates from European and international standards, it holds approval for use in the United States and Japan as well.
The D2S is a high-intensity discharge (HID) xenon bulb rated at 85V and 35W, using a P32d-2 base. It is designed specifically for projector-type headlamp housings and requires an external ignitor to operate, distinguishing it fundamentally from halogen bulb types.
The H7 and D2S bulbs are not interchangeable. Beyond their different base types and voltage requirements, the D2S is restricted to projector-type housings, meaning the headlamp assembly itself determines which low beam bulb is applicable.
The 9005 and H7 bulbs share the same 12V operating voltage but differ in wattage, base type, and regulatory standard. These differences make them physically and electrically incompatible with each other's sockets.
The D2S operates at 85V, which is substantially higher than the 12V supply used by the halogen bulbs in the same vehicle. This voltage difference is managed by the external ignitor required for HID systems, and it represents a critical distinction when handling or replacing HID components.