anmar 4JH110 110HP Inboard Diesel Engine: The Ultimate Guide

The Yanmar 4JH110 110HP Inboard Diesel Engine is one of the most reliable and efficient marine engines on the market today. Known for its fuel efficiency, durability, and powerful performance, the Yanmar 4JH110 is widely used in sailboats, motor yachts, and light commercial vessels. Whether you’re a boat owner, marine engineer, or simply looking to upgrade your current propulsion system, understanding what makes the 4JH110 stand out is essential.

In this comprehensive guide, we’ll cover every aspect of the Yanmar 4JH110, including its specifications, performance, advantages, maintenance requirements, applications, and frequently asked questions.

Table of Contents

1. Overview of Yanmar Marine Engines

2. Introduction to the Yanmar 4JH110

3. Specifications of the 4JH110

4. Key Features and Benefits

5. Fuel Efficiency and Emissions Compliance

6. Installation and Compatibility

7. Maintenance and Service Intervals

8. Applications: Who Uses the 4JH110?

9. Comparison with Competing Engines

10. Where to Buy and Price Range

11. Frequently Asked Questions

12. Final Thoughts

1. Overview of Yanmar Marine Engines

Yanmar is a globally recognized brand in diesel engine technology, with over a century of experience in marine propulsion systems. Known for their innovation, efficiency, and eco-friendly approach, Yanmar engines are trusted by commercial and recreational boaters alike.

Key characteristics of Yanmar marine engines:

• Low fuel consumption

• High reliability and longevity

• Easy maintenance

• Global support network

• Compliant with global emission regulations

2. Introduction to the Yanmar 4JH110

The Yanmar 4JH110 is the most powerful engine in the 4JH series. It delivers a maximum output of 110 horsepower (81 kW) at 3200 RPM. Designed for quiet operation and minimal vibrations, it is ideal for those who value performance without compromising on comfort.

The 4JH110 is a 4-cylinder, 2.0-liter diesel engine with direct injection and turbocharging. It features a common rail fuel injection system, enabling precise fuel delivery and reduced emissions. This model is particularly popular among yacht builders for new installations and repowers.

3. Specifications of the Yanmar 4JH110

4. Key Features and Benefits

a) Turbocharged Power

The Yanmar 4JH110 comes with a turbocharger and intercooler, providing smooth acceleration and high torque at low RPM. This makes it excellent for long-distance cruising and maneuvering in tight spots.

b) Common Rail Fuel Injection

Common rail technology ensures optimal fuel atomization, which improves fuel efficiency, lowers emissions, and reduces engine noise.

c) Electronic Engine Control Unit (ECU)

The ECU monitors various engine parameters and automatically adjusts injection timing and fuel delivery to optimize performance in real-time.

d) Quiet and Low-Vibration Operation

Thanks to precision engineering and advanced balancing, the engine runs quietly with minimal vibration—ideal for sailboats and yachts where comfort is a priority.

e) Compact and Lightweight Design

Its compact footprint makes it easy to install in a wide variety of hulls, including retrofits and new builds.

5. Fuel Efficiency and Emissions Compliance

The Yanmar 4JH110 engine meets the latest global marine emission standards, including:

• EPA Tier 3

• EU RCD 2

This is made possible by the advanced common rail fuel system and optimized combustion process, which ensures complete fuel burn with minimal soot and NOx emissions.

Fuel efficiency is one of the strongest points of this engine. You get more nautical miles per liter, reducing your overall fuel cost on long voyages.

6. Installation and Compatibility

The 4JH110 engine can be paired with several marine gearboxes, including KM35A and ZF saildrives, making it compatible with a wide range of vessels. Yanmar also provides dedicated mounting kits and system components to simplify installation.

Installation considerations:

• Shaft alignment

• Space for intercooler and exhaust

• Cooling water intake

• Control systems (ECU interface and throttle)

7. Maintenance and Service Intervals

Yanmar engines are known for low maintenance costs. The 4JH110 is engineered for ease of access to key components, including filters, impellers, and belts.

Recommended service intervals:

Genuine Yanmar parts are widely available, and Yanmar has a robust global dealer network.

8. Applications: Who Uses the 4JH110?

The Yanmar 4JH110 is used in a variety of vessels due to its versatility and power. Common applications include:

• Sailing Yachts (35ft to 55ft)

• Powerboats

• Catamarans

• Light Commercial Boats

• Trawlers

Boat manufacturers that frequently equip this engine include:

• Beneteau

• Jeanneau

• Lagoon

• Bavaria Yachts

• Hallberg-Rassy

9. Comparison with Competing Engines

Here’s how the Yanmar 4JH110 stacks up against some of its popular rivals:

As seen above, the Yanmar engine provides modern technology and superior power in a lighter, more efficient package.

10. Where to Buy and Price Range

Yanmar 4JH110 engines are available from:

• Authorized Yanmar Marine dealers

• Online marine equipment retailers

• Yacht builders and repowering specialists

Price Range (as of 2025):
$18,000 to $22,000 USD (depending on configuration and gearbox)

Make sure to purchase from an authorized dealer to ensure warranty coverage and access to service support.