Cummins 6BTA5.9 genuine engine parts, DCEC 6BTA5.9 genuine engine parts, DCEC 6BTA5.9 engine parts, Cummins 6BTA5.9 parts,DCEC No. Product name Part No. Unit Qty. Origin 4B 6B 1 Head, Gasket 3921393 pc 1 DCEC 2 Head, Gasket 3921394 pc 1 DCEC 3 Liner, Cylinder 3904166 pc 4 6 DCEC 4 Piston 3907163 pc 4 6 …