Case D149283 D146608 Hydraulic Pump Assembly

The D149283 hydraulic pump assembly is a direct OEM-compatible replacement for Case backhoe loader models 580K, 580SK, and 580 Super K. This gear-type pump serves as the main hydraulic power source for loader and backhoe functions. The unit features a 1-1/2 inch SAE flange inlet port and two outlet ports configured as 1 inch and 3/4 inch O-ring boss fittings. Constructed with aluminum housing for weight reduction and corrosion resistance, the pump operates at a rated pressure of 250 bar (3625 psi) with counter-clockwise rotation viewed from shaft end. The 15-spline input shaft ensures positive drive engagement. This assembly replaces OEM part numbers D149283, D146608, and 3249120175. Cross-reference interchange includes Parker Commercial 3249120024 and CNH alternate D149283R. The pump weighs approximately 33 kg and measures 350 x 230 x 230 mm in packaging dimensions. Designed for construction machinery hydraulic systems requiring reliable flow delivery under continuous duty cycles.