SSP-G QMB139 52mm Piston Kit(0)No Reviews yet $36.99 Quantity discounts available QuantityPrice SKU: 169-380 Out of Stock Available for BACKORDER Email When Available - Click Here! Get notified when your part is back in stock. First Name Last Name Email Address (required)Suscribe to marketing emails. Email Me! Quantity -+ Add to Cart Details Specs Piston Outer Diameter: 52mm Total Piston Height: 34mm Compression Height: 17.3mm Wrist Pin Diameter: 13mm Wrist Pin Length: 37.9mm Includes pist... Supported Models QMB139 50cc/49cc DetailsSpecsSupported Models Back SSP-G Piston Kit for the 50cc QMB139 4-stroke 52mm, Racing Big Bore Cylinder Set. Back Piston Outer Diameter: 52mm Total Piston Height: 34mmCompression Height: 17.3mmWrist Pin Diameter: 13mmWrist Pin Length: 37.9mmIncludes piston, pin, rings and circlips Back QMB139 50cc/49cc Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review