Used Helical Cluster Gear / Countershaft Assembly - Marine or Industrial Diesel

Application: Used helical cluster/countershaft gear assembly, likely from a marine transmission or heavy diesel engine gear train (possible Caterpillar, ZF, or Twin Disc application — not confirmed). Condition: Used take-off with surface rust; teeth appear intact in photos. Sold as-is pending inspection. 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.