Used Helical Gear with Splined Hub - Marine Transmission / Diesel Gear Train

Application: Helical drive/reduction gear with internally splined hub, suitable as a used replacement or core for a marine transmission or diesel engine gear train (exact application unconfirmed — no legible part number or casting marks). Condition: Used take-off with surface rust; teeth appear intact in photos, sold as-is. 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.