Yanmar KMH4A Marine Gearbox for JH3-DTE/JH4-TE, 2.45:1 Reduction (KMH4AG)

The Yanmar KMH4AG is a KMH4A inboard marine reduction gearbox with a 2.45 ratio for Yanmar JH3-DTE and JH4-TE diesel engines. It transmits engine output to the propeller shaft on sailboats and auxiliary powerboats with inboard diesel power.

This OEM Yanmar unit is intended for JH3-DTE and JH4-TE engines specified for KMH4A-series gear applications. When installed to the manufacturer's specifications, it fits approved engine mounts, controls and shafting without modification.

Typical uses are transmission replacement, repowers with a compatible JH-series engine and new marine installations that require an OEM Yanmar transmission.

Highlights

• Yanmar KMH4A inboard reduction gearbox

• 2.45:1 reduction ratio

• For Yanmar JH3-DTE and JH4-TE diesel engines

• Part number KMH4AG

• Fits approved mounts, controls and shafting when installed to spec

Specifications

Good to know

• Installation, rigging and commissioning by a qualified marine technician are recommended; follow the manufacturer's pre-delivery and break-in procedures.