90201-22429-00 – Plate Washer – Yamaha

90201-22429-00 washer is a genuine OEM plate washer for Yamaha outboard engines. It fits in the gearcase or lower drive assembly on a range of Yamaha models. Commonly used on 25, 30, 40, 48, 50, and 55 HP engines, this washer sits where precise spacing and load distribution matter for proper assembly.

Marine plate washers like the 90201-22429-00 washer help maintain even pressure between fasteners and adjoining parts. When a flat washer is missing or worn, bolts can press unevenly. That may cause premature wear or allow parts to shift under normal engine operation. By using the correct plate washer, you help ensure parts clamp and align as designed by Yamaha engineers.

Many outboard rebuilds and gearcase services include replacing small hardware like this washer. Although simple in appearance, it plays a role in preventing component movement and reducing vibration under load. When you fit this part correctly, it helps support long-term durability of the lower unit assembly.

Shop at Arizona Outboard Dismantlers to keep your outboard running strong and ready for the water. Using quality parts like this plate washer can improve longevity and reduce the need for repeat repairs.