Ships the same day! We ship within 10-12 hours of purchase. Contents: Metal gears: 2 pieces (48-tooth genuine equivalent) Aluminum Diameter: Approximately 20mm Compatible models: ■ Mazda Premacy CWFFW If the mirror doesn't retract even when you turn on the switch, there's a high possibility that the internal gears are faulty. Over the years, the original resin gears will crack due to the mirror opening and closing. I also experienced the left side mirror motor making a whirring sound and not moving, so I replaced the resin gear with a metal one. Recommended for those in the same situation who want to replace it cheaply with DIY. Shafts are not included. Please replace the metal gears. Notes: ※ Although unused, there may be some dirt. Please refrain from purchasing if you are concerned. ※ Compatibility may vary depending on the year and vehicle identification number, please confirm the number of teeth before ordering. Metal worm gear for Subaru genuine door mirror electric retraction