For the 2009 Mazda Mazda6, the high-beam headlight uses an H9 bulb. Low-beam fitment depends on the headlight type: models with halogen headlights use H7, while models with HID headlights use D2S. Match the replacement to the vehicle’s installed headlight system rather than selecting one low-beam size for every Mazda6.
The fog lights use H11 LED bulbs. Front turn signals and parking lights both use 7444NA, while the front side marker uses 168NA. At the rear, the brake and tail lights use 3057R, the rear turn signal uses 3757A, and the rear side marker uses 3057A. Reverse lights use 921 bulbs.
For other exterior lighting, the license plate light uses 194. Interior fitment includes a 2825 courtesy light bulb and a DE3175 dome light bulb.