Original DCEC Camshaft ,Model 3929039 can be substituted the original USA Cummins imported one to save your cost with the same performance .And it widely use in qsb3.9-30, qsb4.5-30, qsb5.9-44, g3.9, 4b3.9, isb, 6b5.9, b5.9 gas, g5.9, b gas plus, b4.5s, b6.7s, isb (4 cylinder), isbe (4 cylinder), isbe (6 cylinder), isb (6 cylinder common rail fuel system), b5.9lpg, b lpg plus, qsb5.9-30, b4.5, b gas international, qsb5.9 (common rail fuel system), qsb6.7, isbe4 (6 cylinder), isbe4(4 cylinder), qsb4.5,if you have the above engine repaired ,please think of thise camshaft .

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