6B5.9 Cummins Fuel Injection Pump 5256607 Parts Catalog Ref No. Part Name Part No. Required 1 Double End Plain Stud 5258846 3 2 Fuel Pump Gear 4981224 1 3 Hexagon Flange Nut 3900589 3 4 Hexagon Flange Head Cap Screw 3093775 2 5 Cover Plate Gasket 3939258 1 6 Cover Plate 3948083 1 Fuel Injection Pump 5256607 1 7 …