Universal Parts QMB139 Cylinder Head - Non Emissions $32.99 Quantity discounts available QuantityPrice SKU: 151-213 Restock: Limited Supply This item is IN STOCKCurrent Stock: 21 Quantity -+ Add to Cart Details Specs Bore: 39mmExhaust Bolt Hole Spacing: 49.75mm Intake Bolt Hole Spacing: 44.75mm Supported Models QMB139 50cc/49cc , Various unlisted makes/models DetailsSpecsSupported Models Back Universal Parts Cylinder Head for 50cc 4-stroke QMB139 engines. Back Bore: 39mmExhaust Bolt Hole Spacing: 49.75mmIntake Bolt Hole Spacing: 44.75mm Back QMB139 50cc/49cc , Various unlisted makes/models