Description

Yanmar KMH50V-3 RR 1.58 for 4LV Series (M-Shift) – KMH50V-3 158 4LV For Sale

The Yanmar KMH50V-3 RR 1.58 for 4LV Series (M-Shift) – KMH50V-3 158 4LV is a genuine Yanmar marine V-drive transmission engineered specifically for the advanced Yanmar 4LV Series common-rail marine diesel engines. Featuring a 1.58:1 reduction ratio, right-hand rotation (RR) output, and Yanmar’s proven M-Shift mechanical shifting system, this premium marine gearbox is designed to deliver efficient power transfer, responsive acceleration, and exceptional long-term reliability for recreational and commercial marine applications.

Designed to integrate seamlessly with the powerful Yanmar 4LV150, 4LV170, 4LV195, 4LV230, and 4LV250 marine diesel engines, the KMH50V-3 158 4LV forms a critical component within a complete propulsion package. As part of the KMH50V V-drive transmission family, this gearbox is engineered for installations where engine placement, shaft alignment, and onboard space optimization are important considerations.

The lower 1.58:1 reduction ratio is particularly suited to performance-oriented vessels requiring higher shaft speeds, excellent throttle response, and efficient cruising performance. Whether you are replacing an existing transmission, upgrading a propulsion package, or planning a complete vessel repower, the KMH50V-3 158 4LV delivers the durability, efficiency, and engineering excellence expected from a genuine Yanmar marine transmission.

If you are searching for a Yanmar KMH50V-3 158 4LV for sale, comparing Yanmar KMH50V-3 158 4LV price options, looking for a dependable Yanmar gearbox for sale, sourcing a genuine Yanmar marine gearbox, or seeking a factory-original Yanmar marine transmission, Yanmar Marine Experts supplies authentic Yanmar products backed by technical expertise and worldwide shipping support.

Technical Specifications

Compatible Engines

The Yanmar KMH50V-3 158 4LV is specifically engineered for selected Yanmar 4LV Series marine diesel engines.

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

Understanding the 1.58:1 Reduction Ratio

The 1.58:1 reduction ratio is designed for applications where higher shaft speeds and responsive vessel performance are priorities. Compared to higher reduction ratios, the 1.58:1 configuration allows the propeller shaft to rotate faster relative to engine RPM, making it ideal for lighter vessels and performance-oriented installations.

Benefits of the 1.58:1 reduction ratio include:

• Higher shaft RPM
• Faster acceleration
• Improved throttle response
• Excellent cruising performance
• Enhanced top-end speed potential
• Efficient power transfer
• Reduced drivetrain losses

For many sport cruisers, express boats, center consoles, and performance-oriented recreational vessels powered by the Yanmar 4LV Series, the 1.58:1 ratio delivers an excellent balance between speed, efficiency, and reliability.

Proven M-Shift Mechanical Control System

The M-Shift mechanical control system is designed to provide dependable shifting performance while maintaining simplicity and long-term durability.

Benefits of M-Shift include:

• Smooth gear engagement
• Reliable mechanical operation
• Proven long-term durability
• Precise transmission control
• Simplified maintenance requirements
• Reduced system complexity
• Dependable performance in demanding marine environments

For many vessel owners and marine operators, M-Shift remains a preferred transmission control solution because of its proven reliability and straightforward operation.

Advantages of the KMH50V V-Drive Design

The KMH50V Series is specifically engineered for V-drive propulsion installations where engine positioning and interior space optimization are important.

Benefits of the V-drive configuration include:

• Improved engine placement flexibility
• Better weight distribution
• Increased cabin and cockpit space
• Efficient drivetrain layout
• Simplified propulsion integration
• Smooth power transmission

The V-drive design makes the KMH50V Series a popular choice for many modern recreational and commercial vessel designs.

Designed for the Yanmar 4LV Series

The Yanmar 4LV Series represents one of Yanmar’s most advanced marine diesel engine platforms. Featuring common-rail fuel injection, electronic engine management, low emissions, and exceptional power-to-weight ratios, these engines are widely used in premium recreational and commercial vessels worldwide.

The KMH50V-3 158 4LV is engineered specifically to function as a critical component within a complete Yanmar propulsion system.

As part of the drivetrain, the gearbox contributes to:

• Efficient power transmission
• Smooth vessel operation
• Reliable maneuverability
• Reduced drivetrain losses
• Long-term operational durability
• Enhanced cruising efficiency

For customers researching a Yanmar 4LV250 for sale, comparing Yanmar 4LV230 price options, evaluating a Yanmar 4LV195 for sale, or sourcing a complete propulsion package, selecting the correct transmission ratio is essential to maximizing vessel performance.

Ideal for New Builds and Repower Projects

The KMH50V-3 158 4LV is frequently selected for:

• New vessel construction
• Performance-oriented propulsion systems
• Engine upgrades
• Marine transmission replacement projects
• Marine repower gearbox installations
• Recreational vessel modernization
• Commercial vessel upgrades

When replacing an older transmission, selecting the correct replacement Yanmar gearbox can significantly improve vessel performance, efficiency, and long-term reliability.

Our technical specialists regularly assist customers in selecting the ideal transmission ratio based on vessel displacement, hull design, engine output, and intended operating profile.

Why Choose a Genuine Yanmar Gearbox?

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

Benefits include:

• Factory-engineered compatibility
• Genuine OEM manufacturing standards
• Manufacturer warranty support
• Long-term parts availability
• Proven marine durability
• Reliable propulsion performance
• Lower lifetime ownership costs

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

Common Applications

The Yanmar KMH50V-3 158 4LV is commonly used in:

• Sport cruisers
• Express cruisers
• Center console boats
• Performance powerboats
• Recreational vessels
• Commercial vessels
• Marine repower projects
• Transmission replacement projects

For operators searching for a dependable boat transmission for sale, the KMH50V Series remains one of the most respected transmission platforms within the Yanmar marine propulsion range.

Support from Yanmar Marine Experts

Yanmar Marine Experts specializes exclusively in Yanmar propulsion products, including:

• Marine diesel engines
• Saildrives
• Sterndrives
• Marine gearboxes
• V-drive transmissions
• Genuine replacement parts

Our team assists customers with:

• Gearbox selection
• Compatibility verification
• Propulsion system planning
• Repower support
• Technical guidance
• Worldwide shipping arrangements
• After-sales assistance

As an experienced marine gearbox dealer, trusted marine transmission supplier, and leading source for Yanmar gearbox USA products, we help vessel owners and marine professionals source the correct transmission for their application.

Availability and Ordering Information

If you are looking to buy Yanmar gearbox equipment or searching for a Yanmar KMH50V-3 158 4LV for sale USA, our team can provide current stock availability, lead times, and worldwide delivery options.

The Yanmar KMH50V-3 158 4LV price may vary depending on inventory availability, shipping destination, and market conditions. Likewise, overall Yanmar gearbox price levels may vary based on supply availability and transmission configuration.

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

What’s Included

When purchasing the Yanmar KMH50V-3 RR 1.58 for 4LV Series (M-Shift) – KMH50V-3 158 4LV, your package may include:

• Genuine Yanmar KMH50V-3 158 4LV Marine V-Drive Gearbox
• Factory documentation
• Manufacturer warranty coverage
• Technical support from Yanmar Marine Experts
• Compatibility verification assistance

Package contents may vary according to factory supply specifications.

Warranty and Technical Support

The KMH50V-3 158 4LV is supplied with applicable manufacturer warranty coverage.

Our specialists remain available to assist with:

• Gearbox compatibility verification
• Installation planning
• Product selection guidance
• Propulsion system recommendations
• Worldwide logistics arrangements

Whether you are sourcing a marine repower gearbox, commercial marine gearbox, or complete Yanmar propulsion system, our team can help ensure you receive the correct solution.

Frequently Asked Questions

Is the KMH50V-3 158 4LV a genuine Yanmar gearbox?

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

Which engines are compatible with the KMH50V-3 158 4LV?

This gearbox is designed for selected Yanmar 4LV Series engines, including the 4LV150, 4LV170, 4LV195, 4LV230, and 4LV250.

What does the 1.58:1 reduction ratio provide?

The 1.58:1 ratio delivers higher shaft speeds, excellent throttle response, strong acceleration, and efficient cruising performance.

Is the KMH50V-3 158 4LV suitable for repower projects?

Yes. The KMH50V-3 158 4LV is frequently selected for marine repower projects, transmission replacements, and propulsion upgrades involving Yanmar 4LV engines.

What are the advantages of M-Shift technology?

M-Shift provides dependable mechanical shifting, smooth gear engagement, simplified maintenance, and proven long-term reliability.

How do I get the latest Yanmar KMH50V-3 158 4LV price?

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

Request a Quote

Interested in the Yanmar KMH50V-3 RR 1.58 for 4LV Series (M-Shift) – KMH50V-3 158 4LV for sale?

Contact Yanmar Marine Experts today for the latest Yanmar KMH50V-3 158 4LV price, current stock availability, lead times, 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 together with compatibility guidance, availability information, and shipping options.