Upgrade your tractor's engine with the Kubota V1902 Piston Ring STD 19274-2105. This complete piston ring set is designed for a 1 cylinder engine with a 85MM bore size, making it compatible with the V1902 4 CYL and D1402 3 CYL engines. It fits perfectly for Kubota models V1902, V1902T, V1902E, and V1902B. The ring size measures 85 x 2.50 x 2.0 x 5.0 mm, and it comes with the OEM Part Number: 19274-2105. Upgrade your tractor's engine performance with this high-quality piston ring set.