Detroit Diesel 23501778 Thermostat Housing / Water Outlet - Used

Used Detroit Diesel thermostat / water outlet housing, casting P/N 23501778, suitable for Detroit Diesel Series 92 (6V92 / 8V92) engines in marine and industrial applications. Cast iron, square 4-bolt flange with integral thermostat pocket and side outlet port. Shows normal service wear — paint chipping and surface rust on flange faces; no visible cracks. 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.