Yamaha 6AU-45300-15-8D Lower Unit AssyGenuine OEM Yamaha part.Supersedes Yamaha 6AU-45300-14-8DSpecial Order Yamaha Marine Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 23 business days to ship.; Non Returnable: This item is ordered specifically for your application and cannot be returned or canceled once processed.; Verify Fitment Before Ordering: Please confirm compatibility with your engine model.;