Universal Parts Valve Spring Seat Retainer for 150cc and 125cc GY6 4-stroke QMI152/157 and QMJ152/157 engines and also also fits on 150cc GY6 4-stroke ZNEN engines

• Overall Outer Diameter: 21mm
• Inner Diameter: 7mm
• Overall Height: 8mm

GY6 QMI/QMJ 152/157