Universal Parts QMB139 Exhaust Valve - 64mm(0)No Reviews yet $7.99 Quantity discounts available QuantityPrice SKU: 151-80 This item is IN STOCKCurrent Stock: 12 Quantity -+ Add to Cart Details Specs Valve Diameter: 16mm Shaft Diameter: 5mm Overall length: 64mm Supported Models QMB139 50cc/49cc , Various unlisted makes/models DetailsSpecsSupported Models Back Universal Parts 64mm Exhaust Valve for 50cc 4-stroke QMB139 engines. Back Valve Diameter: 16mmShaft Diameter: 5mmOverall length: 64mm Back QMB139 50cc/49cc , Various unlisted makes/models Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review