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Yanmar 4LV195 – Marine Diesel Engine 195 HP
Yanmar 4LV195 – 195 HP is an efficient 4-cycle marine engine utilizing a 2.75L four-cylinder common-rail architecture specifically optimized for high-performance recreational hulls. This unit provides 195 HP of smoke-free, quiet propulsion with full NMEA 2000® integration, offering the elite power-to-weight ratio and compact footprint necessary for modern coastal cruisers and multi-engine RIB platforms.
- Internal Architecture Dimensions: Inline 4-Cylinder 2.75L Displacement.
- Standard Engine Block Architecture: DOHC 16-Valve with Freshwater Cooling.
- Intelligent Fuel Management System: High-Pressure Common Rail (HPCR).
- Vessel Hull Integration Guide: Recommended for performance motorboats and technical tenders.
- Reliability And Service Plan: Yanmar 2+3 year limited warranty (select regions).
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Description
Yanmar 4LV195 195 HP – Refined Diesel Power for Coastal Cruisers
Reducing the environmental footprint of marine propulsion without sacrificing performance is the primary focus of the Yanmar 4LV195. Delivering 195 HP at 3500 RPM, this engine utilizes advanced fuel mapping to provide a quiet, smoke-free experience that is essential for the American luxury day-boat market. The 4LV195’s compact dimensions allow for versatile installation options, making it a premier repower choice for American owners of classic sailboats and motor yachts seeking a modern, vibration-free diesel solution.
Meeting all USA EPA Tier 3 emission mandates, the 4LV195 represents the pinnacle of Yanmar’s mid-range electronic diesel technology. The integrated EVC (Electronic Vessel Control) provides American owners with high-fidelity engine data and smooth, digital shifting for stress-free maneuvering in crowded USA waterways. Its heavy-duty electrical system, featuring a 130A alternator, is designed to support the sophisticated navigation and entertainment systems common on modern American recreational vessels.
Core Technical Specifications
- Maximum Output: 195 HP at 3500 RPM.
- Displacement: 169 cubic inches (2.76 Liters).
- Configuration: 4-cylinder in-line, water-cooled diesel.
- Aspiration: Turbocharged and aftercooled.
- Dry Weight: Approximately 736 lbs (excluding gearbox).
- Alternator: 12V / 130A high-capacity output.
- Compliance: EPA Tier 3 and USCG compliant.
- Bore and Stroke: 3.62 x 4.07 inches.
Yanmar 4LV195 Full Specs
| Engine type | In-line 4, 4-stroke Diesel |
| Displacement | 2.755L (168 cid) |
| Bore x stroke | 92 x 103.6 mm |
| Horsepower | 195 hp (143 kW) |
| Rated rpm | 3500 rpm |
| Aspiration | Turbocharged & Intercooled |
| Compression ratio | 15.0:1 |
| Fuel system | Common Rail Injection |
| Recommended fuel | Diesel (EN 590) |
| Ignition/Firing Order | Compression / 1-3-4-2 |
| Alternator | 12V, 130 Amp |
| Gear ratio/Drive | KMH50A / KMH50V / ZT370 |
| Transmission | Hydraulic Marine Gear |
| Dry weight | 334 kg (736 lbs) |
| Flywheel housing | SAE 4 |
| Steering | VC10/VC20 Electronic Control |
| Coolant capacity | 9L |
| Exhaust system | Water cooled manifold |
| Cooling system | Heat Exchanger |
| Lubrication | Forced lubrication |
| Oil capacity | 8.5L |
| Emissions rating | EPA Tier 3, RCD II, IMO II |
Yanmar 4LV195 Service & Performance Guide
What is the fuel consumption of the Yanmar 4LV195?
The 4LV195 consumes approximately 10.8 gallons per hour at its maximum 3,500 RPM. This engine is tuned for high durability in displacement hulls and medium-speed cruisers requiring consistent torque. Maintaining a steady cruise at 2,400 RPM will significantly maximize your range while keeping the common-rail system in its peak efficiency zone.
What oil grade is required for the Yanmar 4LV195?
This model requires 8.5 quarts of VDS-rated SAE 15W-40 oil satisfying API CJ-4 requirements. The high-pressure fuel system depends on clean, stable oil to protect the precision injectors from internal deposits. Replace the oil and the full-flow filter every 250 hours to ensure the 2.8-liter block remains in top condition.
How does the Yanmar 4LV195 cooling system operate?
The engine uses a thermostatically controlled freshwater cooling loop with a large-capacity heat exchanger and seawater-cooled aftercooler. This configuration maintains precise induction temperatures for cleaner combustion and reduced emissions. Regularly inspect the sacrificial zinc anodes in the heat exchanger to prevent galvanic corrosion of internal components.
What are the electrical system specifications for this engine?
A standard 4LV195 features a 12V-130A alternator with an integrated charging regulator for efficient multi-bank battery management. This system ensures that your electronic vessel controls and helm displays have steady voltage at all times. All electrical terminals should be treated with dielectric grease to prevent corrosion in marine environments.
What are the physical dimensions and weight of the 4LV195?
The dry weight is 736 lbs, measuring 45.3 inches long and 27.8 inches high. Its robust construction and compact size allow for installation in a wide variety of sailboat and motorboat hulls. Allow for at least 5 inches of overhead clearance for easy access to the top-mounted oil filler.
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