Detroit Diesel Water-Cooled Exhaust Manifold Section 3-Port Marine - Used Core

Application: Water-cooled marine exhaust manifold section (3-port bank), believed to fit Detroit Diesel V-series marine engines (6V/8V-71 or 8V-92 family) or similar V-block marine diesel. Sold as a used core / rebuildable take-off. Condition: Used — heavy external corrosion, flaking paint, port carbon, and casting pitting. Recommended for rebuild, core exchange, or pattern use; pressure test before service. Will be drained and ports capped for 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.