Doosan/Develon New Swing Motor 401-00457B for Doosan DX300

New unused original OEM quality complete swing motor / slewing motor for construction machinery. Brand: Doosan. Model / reference: 401-00457B. Main OEM part number: 401-00457B. Fits machines: Doosan DX300, DX300LC, DX300LC-3, DX300LCA, Daewoo Solar 300LC-V, Solar 300, S300LC-V, machines using 401-00457B / 401-00230 / 401-00442H, verify by OEM. Year of production: 2026. Condition: new, unused, original part / OEM quality, warehouse stock. Host machine technical data for SEO/search: - Engine manufacturer / model: Doosan DL08 / Daewoo-Doosan. - Engine power: 147-159 kW. - Emission class: Phase III / EU Stage IIIB depending model. - Rated engine speed: 1800-1900 rpm. Note: technical values refer to compatible host excavators, not to the hydraulic swing motor itself. Exact specification can vary by machine generation, market and serial number. Estimated transport weight: 380 kg. Estimated transport dimensions L x W x H: 950x700x800 mm. SEO and cross-reference number bank: 401-00457B, 40100457B, 401 00457B, 401-00230, 401-00442H, 170301-00249, 170301-00053E, 170301-00053C, 170301-00053B, 170301-00053A, 170301-00053, 160-00020, 2181-4112, 124-00208D2, K1001029, 130401-00021, K1002518B, DS2054240, DS2055389, DS2901008, 2181-1950D7, S8000181, 2181-1110D3, 140-00805, 2119-1063B, 121-00010D3, 181-00717, S5011113, S0774766, 2114-1831A, 2123-1717B, 198-00028, 2184-1061D69, 181-00103, 121-00006, S6710041, MBEC052. Related internal component names for search: seal kit, casing, drive shaft, shoe plate, piston assembly, retainer, spherical bush, brake valve, cylinder block, friction plate, separation plate, valve plate, brake piston, front cover, relief valve, oil seal, roller bearing, O-ring, snap ring, socket bolt, level gauge, breather pipe. Search phrases: swing motor, slewing motor, slew motor, swing drive, rotation motor, hydraulic swing motor, excavator swing motor, hydromotor, silnik obrotu, kolumna obrotu. Compatibility must be checked by OEM number, machine model, serial number and photos before ordering.