KTA19 Cummins Valve Rotator 3640315 Parts Catalog Ref No. Part Name Part No. Required 　 Cylinder Head PP4795 Cylinder Head 　 Cylinder Head 3646323 6 1 Valve Spring Retainer 205094 4 　 Exhaust Valve 3803528 2 2 Exhaust Valve 3088389 1 3 Valve Collet 205091 2 　 Intake Kit 4955734 2 3 Valve Collet 205091 2 4 Valve Rotator 3640315 …