Marine Diesel Thermostat Housing / Coolant Outlet Casting - Used Core

Application: Marine diesel engine coolant / thermostat housing casting with integrated mounting bracket and temperature sender port. Suitable as a core, pattern, or rebuild candidate for a marine diesel cooling system. Condition: Used core, sold as-is. Heavy external rust, internal scale, flaking paint, evidence of prior sealant repair, and a seized-in temperature sender. No legible OEM part number was visible, so exact engine fitment is not confirmed from 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.