Universal Parts Valve Guide $4.99 Quantity discounts available QuantityPrice SKU: 151-112 This item is IN STOCKCurrent Stock: 11 Quantity -+ Add to Cart Details Specs Overall length 31 mm Supported Models QMB139 50cc/49cc , Various unlisted makes/models DetailsSpecsSupported Models Back Universal Parts Valve Guide for 50cc 4-stroke QMB139 engines. Back Overall length 31 mm Back QMB139 50cc/49cc , Various unlisted makes/models