Universal Parts 17x30x6 Oil Seal $2.99 Quantity discounts available QuantityPrice SKU: 151-3 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 Inner Diameter: 17mmOuter Diameter: 30mmThickness: 6mm Supported Models QMB139 50cc/49cc , Various unlisted makes/models DetailsSpecsSupported Models Back Universal Parts Oil Seal size 17x30x6 for 50cc 4-stroke QMB139 engines. Back Inner Diameter: 17mmOuter Diameter: 30mmThickness: 6mm Back QMB139 50cc/49cc , Various unlisted makes/models