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Case Hydraulic Pump Drive Coupler Flange -- J905820

W11B, 450, 455, 455C, 480E, 480ELL, 480F, 480FLL, 550, 570LXT, 580K, 580L, 580M, 580SE, 580SK, 580 Super L, 584, 585, 586, 590, 590 Super L
Hydraulic Pump Drive Coupler (Fits 15 or 17 Spline Coupler)
Case Hydraulic Pump Drive Coupler -- J905820
Fits Models:
Part # J905820


Case Backhoe Hydraulic Pump Drive Coupler Adapter

  • Fits Case Backhoes: 480E, 480F, 570LXT, 580K, 580L, 580M, 580E, 580 Super E, 580K, 580 Super K,  580L, 580 Super L, 580M, 580 Super M, 590 Turbo, 590 Super L, 590 Super M
  • Fits Case Loader Landscapers: 480E LL, 480F LL, 570LXT, 570MXT
  • Fits Case Dozers450C,  455C, 550, 550E, 550G, 550H, 650, 650G
  • Fits Case Wheel LoadersW11B
  • Fits Case Forklifts: 584E, 584, 585E, 585G , 586E, 586G
  • Fits Case Skid Steer Loaders: 1940, 1845C
  • Adapter Fits Part # D136083 (15 Spline Coupler) or 257948A1 (17 Spline Coupler)
  • 19.1mm ID x 89mm OD x 21mm Wide
  • Check Your Motor Mounts: The most common cause of failure of the hydraulic pump and pump coupler in Case backhoes is broken motor mounts. This causes the engine to drop slightly and causes the pump shaft and coupler to support the weight of the engine

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