## Upgrade Your Scooter's Performance with a Durable 13mm Piston Pin This high-quality 13mm piston pin is designed for 80cc 4-stroke GY6 50 (139QMB/QMA) scooter engines. Constructed from durable steel, this piston pin ensures reliable performance and longevity, contributing to a smooth and efficient engine operation. It's a crucial component for transferring power from the piston to the connecting rod, making it essential for optimal engine function. Replacing a worn or damaged piston pin with this robust component can significantly improve your scooter's performance. ### Key Features and Benefits: * **Enhanced Durability:** Manufactured from strong steel, this piston pin resists wear and tear, ensuring long-lasting performance. * **Precise Fit:** Designed specifically for 80cc GY6 50 (139QMB/QMA) engines, guaranteeing a precise fit and optimal operation. * **Improved Performance:** A new, high-quality piston pin can restore engine efficiency and improve overall scooter performance. * **Easy Installation:** Its straightforward design allows for relatively easy installation, although professional installation is always recommended. ### Specifications: * **Outer Diameter:** 13mm * **Length:** 37mm * **Engine Compatibility:** 80cc, 139QMB/QMA (GY6 50) 4-stroke Investing in this durable piston pin is a smart choice for maintaining and enhancing the performance of your 80cc GY6 scooter. Ensure smooth and efficient operation by replacing your old pin with this high-quality replacement part.