The Yanmar 4JH110 is a high-performance marine diesel engine designed for sailboats and smaller motorboats. This 4-stroke, vertical, water-cooled engine features advanced fuel injection technology with a Bosch common rail system, ensuring efficient and reliable operation. With a maximum output of 110 HP (80.9 kW) at 3200 RPM, the 4JH110 sets the global standard in sailboat and small craft propulsion.
Key technical specifications include:
- Configuration: In-line, 4-stroke, vertical, water-cooled diesel engine
- Displacement: 2.000 liters (122 cubic inches)
- Bore x Stroke: 84 mm x 90 mm (3.31 in x 3.54 in)
- Aspiration: Turbocharged with intercooler
- Combustion System: Direct injection with Bosch common rail system
- Starting System: Electric starting 12V – 1.4 kW
- Cooling System: Fresh water cooling by centrifugal water pump and rubber impeller sea water pump
- Lubrication System: Enclosed, forced lubricating system
- Direction of Rotation (crankshaft): Counterclockwise viewed from flywheel side
- Dry Weight (without gear): 229 kg (505 lbs)
- Engine Dimensions (L x W x H): 909 x 613 x 675 mm
- Emission Compliance: EU RCD 2, BSO II, EMC; US EPA Tier 3, EPA-C
- Engine Management: Electronic
- Alternator: 12V – 125A
- Engine Lube Oil Specifications: API class CD or higher, SAE grade 10W-30 or 15W-40
The engine’s fresh water cooling system, combined with a centrifugal water pump and rubber impeller sea water pump, ensures optimal temperature regulation. Additionally, the enclosed, forced lubricating system and rubber type flexible mounting contribute to its durability and smooth operation. Whether for leisure or commercial use, the Yanmar 4JH110 is a versatile and dependable choice for marine enthusiasts.
Founded in 1912 in Osaka, Japan, Yanmar has a rich history of innovation and excellence in engine manufacturing. The company was established by Magokichi Yamaoka, who was driven by the vision of creating reliable, compact, and efficient engines to ease the burden on workers. Yanmar introduced the world’s first practical small diesel engine in 1933, revolutionizing the industry. Today, Yanmar is a global leader in diesel engine technology, known for its commitment to quality, sustainability, and customer satisfaction. With over a century of experience, Yanmar continues to deliver cutting-edge solutions for marine, agricultural, and industrial applications.
- Fuel Efficiency: The Yanmar 4JH110 is designed to be highly fuel-efficient, reducing operational costs and environmental impact. The advanced common rail fuel injection system optimizes fuel consumption, ensuring maximum efficiency.
- Noise and Vibration Reduction: The engine is engineered to minimize noise and vibration, providing a smoother and quieter boating experience. This is achieved through the use of rubber type flexible mounting and advanced engineering techniques.
- Maintenance and Support: Yanmar engines are known for their ease of maintenance and robust support network. The 4JH110 is no exception, with readily available parts and a comprehensive service network to ensure your engine remains in top condition.
- Customer Reviews: Users have praised the Yanmar 4JH110 for its reliability and performance. Many have reported trouble-free operation and commend the engine’s power and efficiency.
Yanmar Marine offers a variety of transmission options to enhance the performance and efficiency of the 4JH110 marine engine, catering to different boating needs. The KM4A transmission is a compact, lightweight option ideal for smaller vessels, featuring a durable design that supports high torque and smooth gear shifting. The KMH4A model provides a more robust alternative with a versatile configuration, suitable for a range of engine types and offering excellent reliability and operational efficiency. For heavier applications, the KMH50V transmission is designed for high power outputs, incorporating advanced features to optimize performance in demanding marine environments. The ZF25A and ZF30M transmissions are well-regarded for their efficiency and durability, designed to handle various engine configurations while providing smooth gear transitions. Additionally, the bobtail engine offers a comprehensive solution for repowering boats, coming fully assembled with essential systems, making it a convenient replacement for existing inboard or stern drive engines. Together, these transmission options ensure that Yanmar Marine engines can deliver reliable performance across various marine applications.
