Marine Diesel Cast Housing - Heat Exchanger / Header Tank - Used

Application: Marine diesel engine cast housing — likely a heat exchanger end tank, coolant header/expansion tank, or aftercooler housing section. Brand and OEM part number are not identifiable from the available photos; one large ~2 in flanged port, an upper boss (possible filler/sensor), and a bracket pad with mounting holes are visible. Condition: Used take-off with heavy exterior oxidation, paint loss, and internal scale typical of seawater-cooled service. Will be drained and ports capped before shipping. 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.