Marine Diesel Oil Cooler / Heat Exchanger Housing Assembly - Used Take-Off

Application: Used marine diesel oil cooler / heat exchanger housing assembly, most likely from a Detroit Diesel 71-series (6-71/8V-71) marine engine, with Caterpillar or Cummins marine cooler housings as secondary possibilities. Long cast-aluminum shell with two flanged coolant ports, integral crossover tube, and internal tube bundle retained by bolted end caps. Condition: Used take-off, sold as-is and untested. Weathered paint, surface rust on steel hardware and tube-sheet, no visible cracks. Fluids will be drained and open ports capped prior to shipping. Ideal as a rebuild/recore core or exchange unit. 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.