QSL9 Cummins Piston Ring Kit 4376553 Parts Catalog Ref No. Part Name Part No. Required 　 Connecting Rod And Piston PP44604 　 1 Piston Pin 5267807 6 2 Connecting Rod Bearing 3950661 6 3 Connecting Rod Bearing 3966244 6 　 Engine Connecting Rod 4944670 6 4 Engine Connecting Rod 3967347 1 5 Bushing 4944137 1 6 Connecting Rod Cap Screw …