Piston ring set (standard size) for Z500, ZB500, D750 engines.For ONE piston only. Bore: 68.00mm bore Top Ring 1.9mm. 2nd ring 1.5mm, oil control ring 4.00mm Jem Ref: R75std Piston Rings to suit Kubota Z500 ZB500 D750SKU: R75STD 25,00£PriceQuantityAdd to Cart