2020 SEA-DOO RXT X 300 ENGINE MOTOR CRANKCASE CRANK CASES BLOCK 420893514 This crankcase is used Removed From: 2017 Sea-Doo RXT X 300. Please review all pictures before purchasing item. New items may use a stock photo and item may vary slightly.Review Title for accurate product description. The item "2020 SEA-DOO RXT X 300 ENGINE MOTOR CRANKCASE CRANK CASES BLOCK 420893514" is in sale since Friday, November 27, 2020. This item is in the category "eBay Motors\Parts & Accessories\Personal Watercraft Parts\Other Parts". The seller is "redline-motosports" and is located in Lexington, South Carolina. This item can be shipped worldwide.