QSK50 Cummins Flexible Hose 3630598 Parts Catalog Ref No. Part Name Part No. Required 1 Hexagon Head Cap Screw S102D 4 2 Hexagon Head Cap Screw S109 6 3 Hexagon Head Cap Screw S117 4 4 Hexagon Head Cap Screw S172B 4 5 Lock Washer S604 14 6 Lock Washer S605 4 7 O-Ring Seal 216187 4 8 Connection …