Marine Exhaust Riser Spacer Block - Used Take-Off

Application: Marine exhaust riser spacer / adapter block for gas marine engines (MerCruiser / OMC / Crusader / Volvo Penta style water-cooled exhaust systems). Condition: Used take-off — shows scale, exhaust residue, and light corrosion in water passages; gasket surfaces will need cleaning and inspection before reuse. Sold for use as a spacer/adapter where a matching 4-bolt square flange with center exhaust and surrounding water jacket is required. 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.