Piston ring set (standard size) for Kubota Z602, D902 engines & Beta Marine: Beta 16, Beta 25For ONE piston only. Bore: 72.00mm Top ring 1.5mm, 2nd ring 1.5mm, oil control ring 3.00mm Part No : R92STD Piston Rings to suit Kubota Z602 D902 & Beta Marine 16, 25SKU: R92STD £22.00PriceQuantity*Add to Cart