QSC8.3 Cummins Ignition Control Module 5320525 Parts Catalog Ref No. Part Name Part No. Required 1 Hexagon Flange Head Cap Screw 3900630 2 2 Hexagon Flange Head Cap Screw 3900632 2 3 Hexagon Flange Nut 3906216 2 4 Hexagon Flange Head Cap Screw 3913366 2 5 Hexagon Flange Head Cap Screw 3913638 12 6 Studded Flange Cap Screw 3921816 …