KTA38 Cummins Piston Ring Set 4955975 Parts Catalog Ref No. Part Name Part No. Required 　 Connecting Rod And Piston PP6726-04 　 1 Engine Connecting Rod 3632225 12 　 Engine Connecting Rod 3632169 1 2 Fracture Resistant Screw 3013266 2 3 Bushing 3043909 1 4 Pin Dowel 69558 4 5 Plain Washer 205126 2 6 Connecting Rod Bearing 3047390 2 …