Marine Heat Exchanger / Oil Cooler Housing Shell - Used Core

Application: Cast-aluminum marine engine heat exchanger / oil cooler housing shell (tube-bundle style) with rectangular flanged transfer port and two threaded raw-water pipe fittings. Suitable as a rebuildable core or pattern piece; specific engine application not confirmed without a legible part number. Condition: Used core, sold as-is. Heavy external corrosion with visible exfoliation and material loss on one side of the casting; internal bore rust-stained; pipe fittings corroded; tube bundle and end caps not included. Fluids will be drained and ports capped prior to 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.