Marine Tube-and-Shell Transmission / Oil Cooler Heat Exchanger - Used

Application: Marine engine or marine transmission oil cooler (tube-and-shell heat exchanger) — raw water on the shell side, oil through the copper tube bundle. Suitable as a take-off replacement or rebuildable core for medium-duty marine diesel and gear applications once fitment is confirmed. Condition: Used take-off, sold as a serviceable/rebuildable unit. Exterior shows paint loss and surface corrosion; tube bundle appears intact but has not been pressure-tested. 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.