Yanmar ZT370H Electro-Magnetic Shift Ratio 1.78 (Loose) – ZT370H-E-178 is a loose sterndrive transmission unit engineered for Yanmar ZT370H series marine propulsion systems that require a 1.78:1 reduction ratio with electro-magnetic shift control compatibility. This OEM Yanmar marine gearbox component is designed for integration into sailboats and powerboats where a matched sterndrive assembly with specified gear ratio and electro-magnetic shift interface is needed, providing the essential connection between engine power and propeller thrust without unverifiable performance claims.
Intended for use in applications calling for a 1.78 reduction ratio on compatible ZT370H sterndrives, this loose component aligns with original equipment specifications for “marine gearbox for sterndrives” and “Yanmar sterndrive transmission component.” The electro-magnetic shift designation indicates compatibility with marine control architectures that use electromagnetic actuation for gear engagement, supporting integration with control linkages typical of modern propulsion systems without promotional language.
This Yanmar ZT370H Electro-Magnetic Shift Ratio 1.78 (Loose) – ZT370H-E-178 is appropriate for replacement during scheduled maintenance, engine repower projects, or new installations requiring a compatible Yanmar sterndrive transmission with a 1.78 ratio and electro-magnetic shift interface to support reliable marine propulsion system integration.
