KTA50 Cummins Exhaust Valve Kit 3803529 Parts Catalog Ref No. Part Name Part No. Required 　 Cylinder Head 3811987 　 2 Valve Spring Retainer 205094 4 　 Intake Valve Kit 3803515 2 1 Valve Collet 205091 4 3 Intake Valve 3088393 2 　 　 　 　 　 Exhaust Valve Kit 3803529 2 1 Valve Collet 205091 4 4 Exhaust Valve …