John Deere AT400506 Blower Motor Assembly

The AT400506 blower motor is a 12-volt, single-speed, single-shaft unit designed for cab HVAC systems on John Deere agricultural and construction equipment. The motor rotates counter-clockwise (CCW) and features a vented housing without a fan wheel. Key mechanical specifications include a 5/16 inch (7.9 mm) shaft diameter, 1-5/8 inch (41.3 mm) shaft length, 3 inch (76.2 mm) motor diameter, and 4-1/4 inch (108 mm) motor length. Mounting flange diameter is 9 inch (228.6 mm) with a 2-5/16 inch (58.7 mm) stud span. Electrical connection uses a 2-wire configuration. This assembly serves as a direct replacement for John Deere OEM part numbers AT400506, AT456707, RE300527, RE162771, and RE208336. It is engineered for compatibility with row-crop tractors including the 7030, 8030, 9030, and 9020 series, self-propelled sprayers 4730, 4830, 4930, and construction equipment such as 210K, 310K, 315SJ, and 710J loaders and backhoes, as well as 335C, 337E, 435C, 437C, 437D, 437E feller bunchers and log loaders.