Enhance engine performance with the 4938507 Aftercooler, designed for Cummins 4BT3.9 models. Compatible with part numbers 3900139, 3919805, 4941637, and 5262610, this durable component ensures efficient cooling and reliable operation.
Supersedes:3900139 3919805 4941637 5262610
Condition:New / OEM Quality
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