Marine Diesel Heat Exchanger / Aftercooler Tube Bundle Core - Used

Application: Marine diesel heat exchanger / aftercooler tube bundle core — visually consistent with Cummins 6BTA-style aftercooler cores and similar shell-and-tube marine coolers. Copper/brass tube bundle with bronze end caps and center through-bolt retention. Condition: Used take-off, sold as a core / rebuildable candidate. Heavy oxidation, verdigris, and scale present; recommend professional cleaning and pressure testing before service. No legible part number tag observed. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.