Interchange Part Number594207, 597126, 595216, 596033, 596375, 597128. Superseded Part NumberFor BS 40U777 40U877 Engines. Manufacturer Part Number594207, 596033, 596375. Manufacturer Warranty1 Year. 40N777-0020-B1 Engine 40N777-0024-B1 Engine 40N877-0001-B1 Engine.
