Yanmar KM35A2 Gear R 2.33 for 4JH5 – KM35A2S

Description

Yanmar KM35A2 Gear R 2.33 for 4JH5 – KM35A2S For Sale

The Yanmar KM35A2 Gear R 2.33 for 4JH5 – KM35A2S is a genuine Yanmar marine transmission specifically engineered for selected Yanmar 4JH5 Series marine diesel engines. Featuring a 2.33:1 reduction ratio and a proven angle-drive gearbox design, the KM35A2S delivers smooth power transfer, dependable shifting performance, and long-term durability for sailing yachts, cruising vessels, and auxiliary propulsion applications.

Designed to integrate seamlessly with Yanmar’s popular 4JH5 engine platform, the KM35A2S marine gearbox provides the ideal balance between thrust generation, fuel efficiency, and cruising performance. Its compact angle gear configuration makes it particularly well-suited for sailboats where engine room space and drivetrain geometry are critical considerations. The KM35A2 series is specifically designed for compatibility with selected 4JH5E, 4JH45, and 4JH57 engine applications.

Whether you are replacing an existing transmission, planning a vessel repower, or upgrading your propulsion system, the KM35A2S offers the reliability and engineering excellence expected from a genuine Yanmar marine transmission.

If you are searching for a Yanmar KM35A2S for sale, a dependable Yanmar marine gearbox, or 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 KM35A2S is specifically designed for selected Yanmar 4JH5 Series marine diesel engines.

Common applications include:

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

Understanding the 2.33:1 Reduction Ratio

The 2.33:1 reduction ratio is designed to provide an excellent balance between cruising efficiency and propeller thrust. By reducing propeller shaft speed relative to engine speed, the gearbox allows efficient operation of larger propellers while maintaining optimum engine performance.

Benefits of the 2.33:1 reduction ratio include:

• Improved propeller efficiency
• Enhanced low-speed maneuverability
• Better docking control
• Smooth cruising performance
• Reduced drivetrain stress
• Optimized fuel economy

For many cruising sailboats and offshore yachts, the 2.33:1 ratio offers an excellent balance between performance and efficiency.

Proven KM35A2 Angle Gear Design

The KM35A2 gearbox utilizes Yanmar’s proven angle-drive transmission design developed specifically for sailboat applications. This compact configuration allows efficient power transmission while accommodating the installation requirements commonly found in sailing yacht engine compartments. The KM35A-2 series utilizes a mechanical servo cone clutch design and is engineered for pleasure craft applications.

Advantages include:

• Compact installation footprint
• Smooth gear engagement
• Efficient power transfer
• Long service life
• Reliable operation in marine environments

These characteristics have made the KM35A2 one of the most respected Yanmar marine transmission solutions for sailing vessels worldwide.

Designed for Yanmar 4JH5 Engines

The Yanmar 4JH5 Series remains one of the most popular marine diesel engine platforms used in modern sailing yachts and cruising vessels. The KM35A2S is specifically engineered to complement these engines and provide seamless integration throughout the propulsion system.

As part of a complete Yanmar propulsion system, the KM35A2S contributes to:

• Efficient power delivery
• Smooth vessel maneuverability
• Reliable cruising performance
• Reduced drivetrain losses
• Long-term operational durability

For customers researching a Yanmar 4JH5E for sale, comparing Yanmar 4JH45 price options, or planning a propulsion upgrade, selecting the correct gearbox ratio is essential to achieving optimum vessel performance.

Why Choose a Genuine Yanmar Gearbox?

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

Benefits include:

• Factory-engineered compatibility
• Proven marine durability
• Manufacturer warranty support
• Long-term parts availability
• Reliable propulsion performance
• Simplified future maintenance

For vessel owners investing in a replacement Yanmar gearbox, commercial marine gearbox, or propulsion upgrade, genuine Yanmar components help protect the integrity of the complete drivetrain.

Common Applications

The Yanmar KM35A2S is commonly used in:

• Cruising sailboats
• Offshore sailing yachts
• Auxiliary sailboat propulsion systems
• Yacht repower projects
• Marine transmission replacement projects
• New vessel construction

For operators searching for a dependable boat transmission for sale, the KM35A2S remains a trusted gearbox within the Yanmar transmission range.

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 vessel requirements.

Availability and Ordering Information

If you are looking to buy Yanmar gearbox equipment or searching for a Yanmar KM35A2S for sale USA, our team can provide current stock availability, lead times, and delivery options.

The Yanmar KM35A2S 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 transmission options, we can also provide information regarding other Yanmar gearbox for sale models, reduction ratios, and compatible propulsion packages.

What’s Included

When purchasing the Yanmar KM35A2 Gear R 2.33 for 4JH5 – KM35A2S, your package may include:

• Genuine Yanmar KM35A2S Marine Gearbox
• Factory documentation
• Manufacturer warranty coverage
• Technical assistance from Yanmar Marine Experts
• Compatibility verification support

Package contents may vary depending on supply specifications.

Warranty and Technical Support

The KM35A2S 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 KM35A2S a genuine Yanmar gearbox?

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

Which engines are compatible with the KM35A2S?

The KM35A2S is designed primarily for selected Yanmar 4JH5E, 4JH45, and 4JH57 marine diesel engines. Compatibility should always be confirmed before ordering.

What does the 2.33:1 reduction ratio provide?

The 2.33:1 ratio delivers efficient propeller performance, improved maneuverability, and smooth cruising characteristics.

Is the KM35A2S suitable for sailboat repower projects?

Yes. The KM35A2S is frequently used in sailboat repowers, transmission replacements, and propulsion upgrades involving Yanmar 4JH5 engines.

How do I get the latest Yanmar KM35A2S price?

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

Request a Quote

Interested in the Yanmar KM35A2 Gear R 2.33 for 4JH5 – KM35A2S for sale?

Contact Yanmar Marine Experts today for the latest Yanmar KM35A2S 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.