Honda GX340 / GX390 Replacement - Crankcase Side Cover Assembly

Aftermarket crankcase side cover assembly for Honda GX340 and GX390 engines (11HP and 13HP). This cover mounts to the crankcase and provides access to internal engine components for service and repair. Commonly used on pressure washers, generators, water pumps, and other power equipment. Replaces Honda OEM part numbers 11300-Z1C-600 and 11300-Z1C-601.