The Kubota 3A01163840 is a genuine OEM piston ring designed for various Kubota D-series and V-series diesel engines. This critical engine component helps maintain proper cylinder compression and oil control, essential for efficient engine operation and longevity. With a bore diameter of 72mm, an axial thickness of 2mm, and a radial width of 2.5mm, this high-quality ring ensures a precise fit and reliable performance in compatible Kubota engines.