Used Marine Engine Aluminum Thermostat Housing / Coolant Outlet Casting - Unidentified

Application: Used cast-aluminum thermostat housing / coolant outlet-style casting pulled from marine/diesel stock. Exact engine application is unconfirmed — no legible part number or casting mark visible. Features a central thermostat-style bore, small side hose nipple, and four-bolt mounting foot. Condition: Used take-off, sold as-is with surface corrosion, old gasket residue, and dirt. Not cleaned, not pressure tested. 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.