Electric Start Flywheel for Q-Type Crankshaft (Honda GX340/GX390 Engines) Verify flywheel specifications against the provided images before purchase, as variations exist across GX340/GX390 flywheels and crankshafts. Alignment Note: Observe the orientation of the key slot relative to the magnet (refer to images). The electric start flywheel fits for Honda gx340 gx390 11 hp 13 hp 340 cc Engine & 389 cc Engine; For Honda 183F 188f (11HP, 13HP) Engines. Package Including: 1* gx390 electric start flywheel 1*mounting plate. YAMAKATO Electric Start Flywheel Compatible with Honda Gx340 GX390 339cc-389cc 11HP 13HP Small Engines