QSK38 Cummins Flexible Coupling 3635519 Parts Catalog Ref No. Part Name Part No. Required 　 Exhaust Manifold TB6833-01 　 1 Hexagon Head Cap Screw S 117 13 2 Hexagon Head Cap Screw 137890 24 3 Hexagon Head Cap Screw 137891 24 4 Hexagon Head Cap Screw 213723 12 　 Threaded Plug 3023217 2 5 O-Ring Seal 3036666 1 6 Threaded …