Detroit Diesel 6-71 Water-Cooled Marine Exhaust Manifold - Used Core

Application: Marine diesel water-cooled exhaust manifold, 6 inline ports — believed to fit Detroit Diesel 6-71 series marine engines (verify by casting number and port pattern). Condition: Used, take-off core. Surface rust and scale present; not cleaned, not pressure tested. No cracks noted in photos but sold as an as-is core. Fluids will be drained and ports capped before 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.