This master cylinder is compatible with backhoe models including 550, 580D, 580E, 580G, 580SD, 580SE, 580D, 850D, 855D, 450C, 480D, 480LL, 480E, and 480F.Compatible part numbers include D120090, D126695, D127519, and D131596.Package includes: 1 x master cylinder.