Yanmar KM4A2 Gear R 2.63 for JH4-TE / JH4-HTE – KM4A2G

Description

Yanmar KM4A2 Gear R 2.63 for JH4-TE / JH4-HTE – KM4A2G For Sale

The Yanmar KM4A2 Gear R 2.63 for JH4-TE / JH4-HTE – KM4A2G is a genuine Yanmar marine transmission specifically engineered for the proven Yanmar 4JH-TE and Yanmar 4JH-HTE marine diesel engine series. Featuring a 2.63:1 reduction ratio, this heavy-duty marine gearbox is designed to deliver exceptional propeller thrust, superior low-speed maneuverability, and reliable power transfer for cruising yachts, commercial vessels, fishing boats, and marine repower applications.

Built to Yanmar’s exact engineering standards, the KM4A2G provides seamless integration with compatible turbocharged 4JH engines, creating a dependable and efficient propulsion package. The higher reduction ratio enables larger propellers to operate more effectively, making this gearbox particularly suitable for vessels that require increased torque, enhanced docking control, and improved performance under load.

Whether you are replacing an existing transmission, restoring a vessel, or planning a complete propulsion system upgrade, the KM4A2G delivers the durability, efficiency, and reliability expected from a genuine Yanmar marine transmission.

If you are searching for a Yanmar KM4A2G for sale, comparing Yanmar KM4A2G price options, looking for a dependable Yanmar gearbox for sale, or sourcing a genuine Yanmar marine transmission, Yanmar Marine Experts supplies factory-original Yanmar gearboxes backed by technical expertise and worldwide shipping support.

Technical Specifications

Compatible Engines

The Yanmar KM4A2G is specifically designed for selected turbocharged Yanmar marine diesel engines.

Common applications include:

Compatibility should always be verified before purchase. Our technical team can review your engine model, serial number, and vessel specifications to confirm suitability.

Understanding the 2.63:1 Reduction Ratio

The 2.63:1 reduction ratio is designed for vessel owners seeking maximum propeller thrust and improved low-speed control. By reducing shaft speed relative to engine RPM, the gearbox allows larger diameter propellers to operate efficiently while generating greater torque in the water.

Benefits of the 2.63:1 reduction ratio include:

• Increased propeller thrust
• Superior docking control
• Enhanced low-speed maneuverability
• Improved performance under heavy loads
• Greater propulsion efficiency
• Reduced engine stress during cruising
• Optimized performance for displacement vessels

For many offshore cruising yachts, commercial vessels, and heavier hull designs, the 2.63:1 ratio offers an excellent combination of efficiency and power delivery.

Designed for Yanmar 4JH-TE and 4JH-HTE Engines

The Yanmar 4JH-TE and 4JH-HTE engines have built a reputation for durability, fuel economy, and dependable marine performance. The KM4A2G is engineered specifically to complement these engines and function as an integral component within a complete Yanmar propulsion system.

As part of the drivetrain, the gearbox contributes to:

• Efficient power transmission
• Reliable vessel handling
• Smooth forward and reverse engagement
• Reduced drivetrain losses
• Long-term operational durability

For customers researching a Yanmar 4JH-TE for sale, comparing Yanmar 4JH-HTE price options, or planning a propulsion upgrade, selecting the correct gearbox ratio is critical to maximizing vessel performance.

Reliable KM4A2 Marine Gearbox Design

The KM4A2 Series is trusted by marine engineers, professional boatyards, and vessel owners worldwide. Built for demanding marine environments, these gearboxes are designed to provide years of dependable service while maintaining smooth and efficient operation.

Advantages include:

• Reliable power transfer
• Smooth clutch engagement
• Compact installation design
• Long service life
• Simplified maintenance requirements
• Proven marine durability

These qualities make the KM4A2G a respected commercial marine gearbox and a trusted solution for recreational and professional marine applications.

Why Choose a Genuine Yanmar Gearbox?

Choosing a genuine Yanmar gearbox helps ensure proper compatibility between the engine, controls, shaft system, and propeller assembly.

Benefits include:

• Factory-engineered compatibility
• Genuine Yanmar manufacturing standards
• Manufacturer warranty support
• Long-term replacement parts availability
• Reliable propulsion performance
• Simplified servicing and maintenance

For vessel owners investing in a replacement Yanmar gearbox, marine repower gearbox, or complete propulsion upgrade, genuine Yanmar components help maintain the integrity and reliability of the entire drivetrain.

Common Applications

The Yanmar KM4A2G is commonly used in:

• Offshore cruising yachts
• Commercial workboats
• Fishing vessels
• Recreational powerboats
• Marine repower projects
• Transmission replacement projects

For operators searching for a dependable boat transmission for sale, the KM4A2G remains one of the most trusted solutions within the Yanmar marine transmission lineup.

Support from Yanmar Marine Experts

Yanmar Marine Experts specializes exclusively in Yanmar propulsion equipment, including marine gearboxes, saildrives, diesel engines, and genuine replacement parts.

Our team assists customers with:

• Product selection
• Gearbox compatibility verification
• Repower planning
• Technical guidance
• Worldwide shipping arrangements
• After-sales support

As an experienced marine gearbox dealer, trusted marine transmission supplier, and source for Yanmar gearbox USA products, we help customers identify the correct transmission for their specific vessel requirements.

Availability and Ordering Information

If you are looking to buy Yanmar gearbox equipment or searching for a Yanmar KM4A2G for sale USA, our team can provide current stock availability, lead times, and delivery options.

The Yanmar KM4A2G price may vary depending on inventory availability, destination, and shipping requirements. Likewise, overall Yanmar gearbox price levels may vary based on market conditions and supply chain availability.

For customers comparing propulsion options, we can also provide information regarding other Yanmar gearbox for sale models, compatible ratios, and complete propulsion packages.

What’s Included

When purchasing the Yanmar KM4A2 Gear R 2.63 for JH4-TE / JH4-HTE – KM4A2G, your package may include:

• Genuine Yanmar KM4A2G Marine Gearbox
• Factory documentation
• Manufacturer warranty coverage
• Technical assistance from Yanmar Marine Experts
• Compatibility verification support

Package contents may vary depending on factory supply specifications.

Warranty and Technical Support

The KM4A2G is supplied with applicable manufacturer warranty coverage.

Our team remains available to assist with:

• Engine compatibility verification
• Gearbox selection guidance
• Reduction ratio recommendations
• Product selection support
• Worldwide logistics arrangements

Whether you are sourcing a replacement Yanmar gearbox, installing a marine repower gearbox, or upgrading a complete propulsion package, our specialists can help ensure you receive the correct solution.

Frequently Asked Questions

Is the KM4A2G a genuine Yanmar gearbox?

Yes. We supply only genuine Yanmar marine transmissions backed by manufacturer warranty support.

Which engines are compatible with the KM4A2G?

The KM4A2G is designed primarily for the Yanmar 4JH-TE and Yanmar 4JH-HTE marine diesel engines.

What does the 2.63:1 reduction ratio provide?

The 2.63:1 ratio delivers increased propeller thrust, improved low-speed maneuverability, enhanced docking control, and excellent performance under load.

Is the KM4A2G suitable for repower projects?

Yes. The KM4A2G is frequently selected for marine repower gearbox installations, transmission replacements, and propulsion upgrades.

How do I get the latest Yanmar KM4A2G price?

Contact our sales team for current pricing, stock availability, lead times, and delivery options.

Request a Quote

Interested in the Yanmar KM4A2 Gear R 2.63 for JH4-TE / JH4-HTE – KM4A2G for sale?

Contact Yanmar Marine Experts today for the latest Yanmar KM4A2G price, stock availability, and worldwide shipping options.

For the fastest assistance, please provide:

• Engine model
• Engine serial number
• Current gearbox model
• Vessel make and model
• Delivery destination

Our technical specialists will review your requirements and provide a tailored quotation along with compatibility guidance, availability information, and shipping options.