1996 SEA-DOO GTI ENGINE MOTOR CRANKCASE CRANK CASES BLOCK 420890121 This crankcase is used Removed From: 1996 Sea-Doo GTI. 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 "1996 SEA-DOO GTI 717 ENGINE MOTOR CRANKCASE CRANK CASES BLOCK 420890121" is in sale since Friday, May 4, 2018.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.