Yanmar KM35A2 Gear R 2.33 for 4JH5 – KM35A2S is a marine transmission component designed for integration with Yanmar diesel propulsion systems that require a compact reduction gearbox. It functions as the mechanical interface between the engine and the propeller shaft, transferring engine output efficiently in sailboats and powerboats equipped with inboard diesel installations. This unit forms part of an OEM Yanmar marine propulsion configuration and is intended for use in standard marine drivetrain layouts.
This gearbox is configured with a 2.33 reduction ratio and is specifically compatible with Yanmar 4JH5-series diesel engines. The reduction ratio supports appropriate propeller shaft speed and torque characteristics for typical marine operating conditions. When installed in accordance with manufacturer specifications, it integrates with approved engine mounts, controls, and shafting systems without modification. As an OEM Yanmar marine gearbox replacement, it is suited for maintaining correct drivetrain alignment and mechanical fitment.
This Yanmar marine gearbox is typically used for replacement of existing transmissions, repower projects involving compatible 4JH5 engines, or new marine installations requiring an OEM Yanmar marine propulsion transmission solution.
