Check the listing for details. Sierra Thrust Washer #18-4223, OMC 333592. Condition: New other (see details). Listed at 24.99 USD. The Sierra Thrust Washer #18-4223, OMC 333592 is a high-quality boat part manufactured by Sierra. This washer, specifically designed for sterndrive motors, ensures precise fit and optimal performance. With the brand's reputation for durability and reliability, boat owners can trust that this Thrust Washer will help maintain the proper alignment and functionality of their boat's propulsion system. Perfect for those looking to replace a worn-out or damaged washer, this product is a crucial component for smooth and efficient boat operation.The Sierra Thrust Washer #18-4223, OMC 333592 is a high-quality boat part manufactured by Sierra. This washer, specifically designed for sterndrive motors, ensures precise fit and optimal performance. With the brand's reputation for durability and reliability, boat owners can trust that this Thrust Washer will help maintain the proper alignment and functionality of their boat's propulsion system. Perfect for those looking to replace a worn-out or damaged washer, this product is a crucial component for smooth and efficient boat operation.