Designed for engines using the139QMA and 139QMB designations, these rings are engineered to provide a superior seal between the piston and cylinder wall. In the category of Engines and Engine Parts > Pistons and Piston Kits > Piston Rings.
cyclingcolors Piston + piston rings motorcycle moped scooter mofa 50cc compatible with Kymco Dink Top Boy Super 9 39 mm
Piston Rings Gasket Set, 52.4mm Motorbike Pistons Rings High Strength Engine Parts Piston Set Rings Gaskets Piston Ring Rebuild Kit for 110cc 125cc Engine ATV Dirt Pit Bike Go Kart
cyclingcolors Cylinder piston rings motorcycle moped scooter mofa 50cc compatible with Piaggio Zip Typhoon Liberty Vespa LX Gilera Stalker Aprilia SR
Akozon 56mm Dirt Bike Piston Rings, 13mm Aluminum Pin Piston Ring Kit Fit for ZHONGSHEN Engine Pit PRO Dirt Bike + yx140 Piston Rings
Piston Rings Gasket Set, 52.4mm Piston Rings Gasket Set Piston O Ring Gasket Kit With High Strength For Engine ATV Dirt Pit Bike Go Kart
GOOFIT 39mm Piston Rings Kit Replacement for GY6 49cc 50cc 139qmb Taotao Baja Jonway Lance Scooter