Twin Disc MG6984-00A NICO Marine Transmission Gearbox – Used

Twin Disc / Twin Disc Nico heavy-duty marine transmission, Made in Japan. Model appears to be MG6599-series (plate partially worn — model, ratio, and serial must be verified from the data plate before purchase). Complete external assembly with shift/control valve block, output flange, and mounting feet. Application: heavy-duty commercial / large yacht propulsion — specific engine fitment not verified. Condition: used, untested running take-out; sold by photographs, identifiers, and dimensions. 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.