The Kubota 3B78477223 is a genuine OEM starter motor assembly designed for various Kubota B, L, and MX series tractors. This essential electrical component provides the necessary power to crank the engine, ensuring reliable starting performance. It is a direct replacement part, engineered to meet Kubota's specifications for proper fit and function in compatible models, including B2650, B3350, L3560, L4060, L4760, L5060, L6060, MX4800, MX5200, MX5400, MX5800, and MX6000.