Universal Parts Piston Pin $1.99 Quantity discounts available QuantityPrice SKU: 151-16 Restock: Limited Supply This item is IN STOCKCurrent Stock: 4 Quantity -+ Add to Cart Details Universal Parts Piston Pin for 50cc 4-stroke QMB139 engines.All sales on clearance items are final. Specs Length: 31mm Outer Diameter: 13mm Supported Models QMB139 50cc/49cc , Various unlisted makes/models DetailsSpecsSupported Models Back Universal Parts Piston Pin for 50cc 4-stroke QMB139 engines.All sales on clearance items are final. Back Length: 31mm Outer Diameter: 13mm Back QMB139 50cc/49cc , Various unlisted makes/models