Ships the same day! We ship within 10-12 hours after payment is confirmed. We also ship on weekends and holidays. # Gear Set for Days Contents: Silicone grease 5g x 1 Metal gear: 1 (30 teeth, genuine equivalent) Aluminum (Diameter x Thickness x Height: 19.5 x 3 x 6) Shaft hole Φ3.4 *Please confirm the number of teeth and shaft hole Φ3.4 before ordering. Compatible models: ■ NISSAN Nissan vehicles Days (B21W) Days Roox (B21A) If the mirror doesn't retract even when you turn on the switch, there's a high possibility that the internal gear is faulty. The door mirrors of Days Roox, after years of use, the original resin gears can crack due to the opening and closing of the mirror. 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. I recommend this to those who want to replace it cheaply with DIY in the same situation. Shaft is not included. Please replace it by swapping the metal gear. Reference: The screws on the motor unit at the bottom of the mirror are: Phillips head screw → 48 teeth Torx screw → 30 teeth However, this is not always the case. Also, shaft holes of Φ3.4 and Φ4.4 are mixed. Search terms: Moco door mirror gear Roox door mirror gear Nissan genuine door mirror electric retractable metal worm gear