Description

YANMAR 4CHE3 78HP Diesel Marine Inboard Engine – Commercial-Grade Reliability and Fuel Efficiency

The YANMAR 4CHE3 78HP Diesel Marine Inboard Engine is a high-performance power solution built for commercial vessels that demand consistent output, rugged durability, and fuel efficiency. Designed with a four-cylinder, naturally aspirated diesel platform, the 4CHE3 offers 78 horsepower at 2,550 RPM, making it ideal for fishing boats, passenger ferries, and workboats operating in harsh marine environments.

At Marine Inboard Specialists, we supply yanmar marine engines for sale backed by full manufacturer warranties, global shipping, and expert technical support. Whether you’re outfitting a new vessel or repowering an existing fleet, the YANMAR 4CHE3 delivers dependable propulsion for commercial applications.

Why Choose the YANMAR 4CHE3 78HP Diesel Engine?

The YANMAR 4CHE3 is specifically built for extended marine operations. With a focus on low fuel consumption, mechanical reliability, and ease of maintenance, this engine delivers exceptional return on investment for commercial marine operators.

Key Advantages YANMAR 4CHE3 78HP Diesel Marine Inboard Engine:

  • Fuel-Efficient Performance
    Built for long-range marine service, offering superior fuel economy without compromising power output.

  • Mechanical Engine Management
    Features full mechanical controls, minimizing reliance on electronics and maximizing reliability in tough conditions.

  • Durable Marine Construction
    Heavy-duty components withstand continuous operation in corrosive saltwater environments.

  • Advanced Heat Exchanger Cooling
    Keeps the engine at optimal temperature during prolonged usage, enhancing overall engine life.

  • Low Downtime and Maintenance
    Simple service access and robust parts availability reduce operational interruptions.

Technical Specifications Of YANMAR 4CHE3 78HP Diesel Marine Inboard Engine

Specification Details
Model YANMAR 4CHE3
Engine Type 4-Cylinder, 4-Stroke, Naturally Aspirated
Power Output 78 HP (57.4 kW) at 2,550 RPM
Fuel System Direct Injection Diesel
Cooling System Freshwater with Heat Exchanger
Displacement 4.33 Liters (264.3 cubic inches)
Bore × Stroke 105 mm × 125 mm
Dry Weight 570 kg
Alternator 24V – 4.0 kW
Starting System Electric Start
Emissions Compliance IMO Tier II
Engine Mounting Flexible Mounts
Flywheel Housing SAE #1 with 14-inch Flywheel

Package Includes

When you purchase the YANMAR 4CHE3 78HP Inboard Engine from Marine Inboard Specialists, your package includes:

  • Genuine YANMAR 4CHE3 marine diesel engine

  • Factory-installed heat exchanger cooling system

  • 24V electric starting motor (4.0 kW)

  • SAE #1 flywheel housing with 14-inch flywheel

  • Hydraulic marine gear system for smooth, efficient power transfer

  • Operator’s manual and detailed installation guide

  • Basic tool kit and essential spare parts package

  • Warranty registration documents

All engines are factory-tested and verified for quality, performance, and compliance.

Optional Accessories

Upgrade your marine engine installation with the following YANMAR-approved accessories:

  • High-Riser Exhaust Mixing Elbow – Improves exhaust dispersion and reduces backpressure.

  • Flexible Engine Mounts – Further reduce onboard vibration and engine noise.

  • Extended Wiring Harnesses – Available in 3m, 5m, 10m, and 20m lengths for custom configurations.

  • Water Separator & Fuel Filter – Protects the engine from contaminated fuel.

  • Remote Engine Control Panel – Allows remote monitoring and control of engine functions.

  • Lube Oil Evacuation Pump – Simplifies oil changes during onboard maintenance.

Applications

The YANMAR 4CHE3 78HP Diesel Marine Inboard Engine is engineered for the following vessel types:

  • Commercial fishing boats

  • Small to mid-sized workboats

  • Passenger transport ferries

  • Survey and research vessels

  • Utility and support vessels in harbors or offshore

Its power, mechanical simplicity, and endurance make it an excellent fit for continuous use in commercial marine settings.

Warranty Information

All YANMAR engines supplied by Marine Inboard Specialists come with a standard manufacturer’s warranty, which includes:

  • Coverage: 2 Years or 2,000 Operating Hours (whichever comes first)

  • Protection: Includes parts and labor for manufacturing defects

  • Extended Warranty Options: Available for commercial users upon request

  • Global Support: Access to YANMAR’s worldwide dealer and service network for ongoing assistance and spare parts

For complete warranty details or to activate your coverage, contact our support team.

Frequently Asked Questions (FAQs)

1. What type of vessels is the YANMAR 4CHE3 Yanmar Marine Engines designed for?
It’s ideal for commercial fishing vessels, workboats, ferries, and marine utility boats operating in heavy-duty conditions.

2. How fuel-efficient is the 4CHE3?
Its direct injection diesel system ensures high combustion efficiency, resulting in excellent fuel economy for long-range operations.

3. Does the engine comply with emission regulations?
Yes. The YANMAR 4CHE3 meets IMO Tier II emission standards for marine diesel engines.

4. How often should the engine be serviced?
Routine maintenance is recommended every 250–500 hours, including oil, filter, and system inspections.

5. Where can I find genuine spare parts?
You can order genuine YANMAR parts through Marine Inboard Specialists or YANMAR’s global dealer network.

6. Is installation support available?
Yes. We offer expert installation assistance and can connect you with qualified marine technicians.

7. Do you ship internationally?
Absolutely. We provide secure global shipping to ports and marinas across Europe, Asia, and select international regions.

Order the YANMAR 4CHE3 78HP Marine Inboard Engine Today

Searching for a heavy-duty yanmar diesel engines for sale that delivers reliable power, fuel savings, and mechanical simplicity? The YANMAR 4CHE3 78HP is a top-tier solution trusted by marine professionals worldwide.

Contact Marine Inboard Specialists today for pricing, availability, shipping options, and expert advice. Our marine engine specialists are here to power your next commercial voyage.

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