Aftermarket Piston Ring for the Cummins 4BT 3.9 diesel engine. Direct replacement for Cummins 3901774.
Fits These Models
Case Backhoe: 580K, 580L, 580L SERIES 2, 580SE, 580SK, 580SL, 580SL SERIES 2
Case Skid Steer: 1845C, 95XT
Case Wheel Loader: 621, 721, 621B, 721B, 621C, 721C
Komatsu Excavator: PC210-7-CA, PC210-7-CG, PC210-6D, PC210-6K, PC210-7K, PC210-8K
Komatsu Wheel Loader: WA200-3, WA200-5, WA200-6, WA250-3, WA250-5, WA250-6, WA320-3, WA320-5, WA320-6, WA200-5 SS, WA320-3CS, WA250-3L, WA320-3L, WA320-5L, WA320-3MC, WA320-6N, WA200L-5, WA250L-3, WA250L-5, WA200PT-5, WA250PT-3, WA250PT-5, WA250PT-3L, WA250PT-3MC, WA200PTL-5, WA250PTL-5, WA200PZ-6, WA250PZ-5, WA250PZ-6, WA320PZ-6
