Universal Parts Intake O-ring $0.99 Quantity discounts available QuantityPrice SKU: 151-82 This item is IN STOCKCurrent Stock: 258 Quantity -+ Add to Cart Details Specs ID 17.5 mm Ring Width 1.9 mm Supported Models QMB139 50cc/49cc , Various unlisted makes/models DetailsSpecsSupported Models Back Universal Parts Intake to Cylinder Head O-ring size 17.5*1.9 for 50cc 4-stroke QMB139 engines. Back ID 17.5 mmRing Width 1.9 mm Back QMB139 50cc/49cc , Various unlisted makes/models