Kubota RD411-42300 Radiator Assembly

The Kubota RD411-42300 radiator assembly is engineered as a direct OEM replacement for the cooling systems of Kubota compact excavators. Constructed with aluminum tube-and-fin core technology, it provides high heat transfer efficiency and lightweight durability required for heavy-duty construction environments. The unit is designed to meet original factory specifications for pressure rating, flow capacity, and mounting geometry, ensuring drop-in installation without modification. It serves as the primary engine coolant radiator for the listed machine models. This assembly includes the core, tanks, and mounting brackets as supplied by the OEM. It is compatible with Kubota excavator models including U50-3, U45-3, KX121-3, KX161-3 and their super series variants. The part number RD411-42300 supersedes RD41142300. Weight is approximately 5.49 kg (12.10 lbs).