Yanmar 4CHE3 85HP Diesel Marine Inboard Engine – Power, Efficiency, and Reliability | JB Marine GmbH
At JB Marine GmbH, Germany’s trusted Yanmar engine supplier, we deliver marine power solutions that redefine performance and dependability. The Yanmar 4CHE3 85HP Diesel Marine Inboard Engine is engineered for professionals who demand the perfect balance of fuel efficiency, durability, and operational reliability. Designed for fishing boats, workboats, and passenger ferries, this 4-cylinder diesel engine delivers consistent propulsion power under even the harshest maritime conditions.
Built for Professional Marine Performance
The Yanmar 4CHE3 85HP stands as a testament to precision marine engineering. This naturally aspirated, water-cooled, four-cylinder diesel engine provides a rated power output of 85 HP (63 kW) at 2,600 RPM, delivering steady performance and exceptional fuel economy.
With direct injection technology and a heat exchanger cooling system, the 4CHE3 ensures smooth operation, lower emissions, and reduced fuel consumption. It’s the ideal propulsion system for long-distance operations and continuous-duty applications in commercial marine environments.
Key Features and Benefits
Fuel-Efficient Operation
The direct injection diesel system ensures maximum combustion efficiency, enabling operators to achieve excellent fuel savings and reduced emissions during prolonged voyages.
Robust Construction for Marine Durability
Built with marine-grade materials and high-tolerance components, the 4CHE3 resists corrosion and wear, ensuring long-term reliability in saltwater and offshore conditions.
Advanced Cooling Technology
A heat exchanger cooling system maintains optimal engine temperature during continuous operation, minimizing thermal stress and extending service life.
Mechanical Engine Control
Fully mechanical management offers simple, reliable operation — perfect for vessels operating in remote or rugged environments where electronic systems may fail.
Simplified Maintenance Access
All inspection and service points are easily accessible, reducing downtime and simplifying routine maintenance, keeping your vessel in service longer.
Technical Specifications
| Specification | Details |
|---|---|
| Model | Yanmar 4CHE3 |
| Engine Type | 4-cylinder, naturally aspirated, water-cooled diesel engine |
| Power Output | 85 HP (63 kW) at 2,600 RPM |
| Fuel System | Direct Injection Diesel |
| Cooling System | Heat Exchanger Cooled |
| Displacement | 4.33 L / 264.3 cu in |
| Bore × Stroke | 105 mm × 125 mm |
| Dry Weight | 570 kg |
| Alternator | 24V – 4.0 kW |
| Mounting System | Flexible Engine Mounts |
| Starting System | Electric Start |
| Emission Compliance | IMO Tier II |
Package Contents
When you order the Yanmar 4CHE3 85HP Diesel Marine Engine from JB Marine GmbH, your purchase includes a complete factory-assembled package ready for installation:
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Factory-Installed Heat Exchanger
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Basic Tool Kit and Spare Parts Package
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Operator’s Manual and Installation Guide
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Electric Starting Motor (24V, 4.0 kW)
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SAE #1 Flywheel Housing and 14-inch Flywheel
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Hydraulic Marine Gear System for Smooth Power Transmission
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Warranty Registration Documentation
This ensures you receive a complete, plug-and-play propulsion system built for endurance, safety, and power efficiency.
Optional Accessories
Enhance your vessel’s performance with genuine Yanmar accessories from JB Marine GmbH:
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High-Riser Mixing Elbow: Optimizes exhaust dispersion for specialized setups.
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Flexible Mounts: Minimize vibration and enhance onboard comfort.
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Extension Wire Harness (3m–20m): For remote installations.
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Water Separator & Fuel Filter: Improves fuel purity and protects the engine.
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Remote Control Panel: Enables convenient monitoring and management.
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Lube Oil Evacuation Pump: Simplifies oil changes and routine maintenance.
Every accessory is Yanmar OEM certified, ensuring perfect compatibility and reliability.
Warranty & Support
At JB Marine GmbH, we stand behind every Yanmar engine we supply. The Yanmar 4CHE3 comes with:
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2-Year / 2,000-Hour Warranty: Covers parts and labor for manufacturing defects.
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Extended Warranty Options: Available upon request for long-term protection.
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Global Service Network: Access to genuine parts and certified Yanmar technicians worldwide.
With JB Marine GmbH, you’re backed by Germany’s most trusted name in marine propulsion service and support.
Applications
The Yanmar 4CHE3 Diesel Marine Engine is engineered for a range of marine professionals who demand durability, efficiency, and dependable performance:
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Fishing Boats: High torque and reliable operation for demanding work conditions.
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Commercial Workboats: Continuous-duty capability for high-load operations.
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Passenger Ferries: Smooth, fuel-efficient power for extended routes.
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Utility and Harbor Vessels: Compact, robust, and easy to service in port operations.
Its low-vibration, steady torque output ensures optimal comfort and performance for operators and passengers alike.
Frequently Asked Questions (FAQs)
Which vessels are suitable for the Yanmar 4CHE3?
The 4CHE3 is perfect for fishing vessels, workboats, and passenger ferries requiring continuous, efficient propulsion.
How does this engine achieve superior fuel efficiency?
Its direct injection diesel system optimizes combustion for maximum output with minimal fuel burn.
Is it environmentally compliant?
Yes — the Yanmar 4CHE3 meets IMO Tier II standards, ensuring clean and efficient operation.
How often should I service the engine?
Routine servicing every 250–500 hours is recommended, depending on operating conditions. Always use genuine Yanmar parts for maximum lifespan.
Where can I get spare parts?
JB Marine GmbH supplies genuine Yanmar spare parts, accessories, and maintenance kits with global shipping.
Why Choose JB Marine GmbH
When you choose JB Marine GmbH, you partner with Germany’s most reliable source for marine diesel engines and Yanmar propulsion systems.
Our Advantages
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Authorized Yanmar Dealer: Supplying factory-certified diesel engines and parts.
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Competitive Pricing: Direct partnerships with Yanmar ensure cost efficiency.
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Expert Marine Support: Technical consultation from experienced marine engineers.
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Fast Worldwide Shipping: Delivery to Europe, Asia, and beyond.
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Comprehensive After-Sales Care: Maintenance support and long-term customer service.
We’re more than an engine supplier — we’re your global partner for maritime propulsion excellence.
Contact JB Marine GmbH
Enhance your vessel’s efficiency and reliability with the Yanmar 4CHE3 85HP Diesel Marine Inboard Engine.
Contact JB Marine GmbH today for competitive pricing, availability, and expert consultation.









