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The Yanmar KM4A2 Gear R 1.47 – KM4A2SS is a precision marine transmission designed to deliver efficient power transfer, optimized propulsion control, and reliable gearbox performance. It is engineered for compatibility with Yanmar JH-series engines, providing dependable integration for marine propulsion systems.Add to cart
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The Yanmar KM4A2 Gear R 2.14 for JH4-TE / JH4-HTE is an OEM Yanmar marine transmission component designed for compatible Yanmar JH4-TE and JH4-HTE diesel engines requiring a compact inboard reduction gearbox. Featuring a 2.14 reduction ratio, this marine gearbox supports accurate power transfer from the engine to the propeller shaft in compatible sailboats, auxiliary powerboats, replacement projects, repower applications, and new inboard diesel installations.Add to cart
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The Yanmar KM4A2 Gear R 2.63 for JH4-TE / JH4-HTE is a marine transmission system engineered to deliver precise power transfer, stable propulsion control, and reliable performance in Yanmar engine setups. It is designed for vessel owners and marine professionals who require dependable gearbox integration with JH-series marine diesel engines.Add to cart
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The Yanmar KMH4A Gear R 2.04 for JH3-DTE / JH4-TE is an OEM Yanmar marine transmission component designed for compatible Yanmar diesel propulsion systems requiring an inboard reduction gearbox. Featuring a 2.04 reduction ratio, this KMH4A-series marine gearbox supports controlled power transfer from the engine to the propeller shaft in compatible sailboats, auxiliary powerboats, replacement projects, and JH-series repower installations.Add to cart
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The Yanmar KMH4A Gear R 2.45 for JH3-DTE / JH4-TE is an OEM Yanmar marine transmission component designed for compatible Yanmar diesel propulsion systems requiring an inboard reduction gearbox. Featuring a 2.45:1 reduction ratio, this KMH4A-series marine gearbox supports reliable torque transfer from the engine to the propeller shaft in compatible sailboats, auxiliary powerboats, repower projects, and Yanmar marine gearbox replacement applications.Add to cart
