Marine Diesel Cast Aluminum Elbow / Air Intake Connection - Used Take-Off

Application: Marine diesel engine cast aluminum elbow / connector — likely an air intake or coolant passage elbow (possible Cummins 6BT/6BTA aftercooler air intake connection or Barr-style marine connector). 4-bolt square flange to single round outlet neck. Condition: Used take-off with corrosion and pitting/material loss at the outlet lip; flange face appears serviceable. No OEM part number was legible in the photos. 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.