Upgrade your Kubota D1105 or V1505 engine with this high-quality Piston Ring Set STD 78MM. This kit includes everything you need to replace your worn-out piston rings, including the 1st, 2nd, and 3rd rings in sizes 4mm, 1.5mm, and 2mm respectively. The OEM part numbers for this set are 16060-21114 and 16292-21050, ensuring that you are getting a Kubota product. Whether you are performing routine maintenance or a complete engine rebuild, this piston ring set is the perfect choice for your Kubota tractor. Upgrade your machinery today.