Fly Wheel with Ring Gear. Key Switch Box with Keys. The item "NON OEM ELECTRIC START KIT STARTER MOTOR FLYWHEEL SWITCH GX340 GX390 I ST19+" is in sale since Friday, November 13, 2015. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Lawn Mowers, Parts & Accessories\Lawn Mower Parts".The seller is "inu521" and is located in Ontario, California. This item can be shipped worldwide.