Unidentified Marine Diesel Cylindrical Sleeve / Transfer Tube - Used

Application: Unidentified marine / industrial diesel cylindrical sleeve or transfer tube, likely a coolant/air transfer sleeve, heat exchanger insert, or pump wear sleeve from a Detroit Diesel, Cummins, John Deere, Volvo, or Perkins-family engine. Condition: Used take-off, no visible part number; paint chipped, sealing surfaces intact, bore clean. 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.