Compatible With Kubota Engines: Designed for Kubota V1902, V1902T, V1902E, V1902B (4-cylinder) and D1402 (3-cylinder) diesel engines. OEM Replacement Numbers: Replaces 19274-21050 and 19274-21110 — direct fit replacement for worn or damaged piston rings. Standard Bore Size: Fits 85mm STD cylinder bore; ring thicknesses are 2.5mm, 2.0mm, and 5.0mm for proper sealing and compression. Precision-machined from cast iron with chrome-plated surfaces for strength, heat resistance, and reduced friction. Includes Complete Set: One complete ring set for one piston — ideal for full engine rebuilds or single-cylinder repair. Arko Tractor Parts New Piston Ring For Kubota 1 Complete Piston Ring set of 1 cylinder For Engine V1902 4 CYL 85MM Bore Size For Engine D1402 3 CYL 85MM Bore Size Fits For Kubota: V1902, V1902T, V1902E, V1902B Ring Size: 85 x 2.50 x 2.0 x 5.0 mm OEM Part Number: 19274-2105 Comes With Instruction how to install it