fits model: Marine.

( Brand: Yanmar ), ( Manufacturer Part Number: SB12G ), ( Part Type: Engine ), ( Country/region Of Manufacture: Japan )
The SB12G Yanmar diesel marine engine is a powerful and reliable workhorse designed for a variety of marine applications. This engine is equipped with a 12-liter, four-stroke, common rail direct injection (CRDI) diesel engine that delivers impressive power and efficiency. The CRDI system ensures precise fuel injection, resulting in lower fuel consumption, reduced emissions, and improved performance.
The SB12G engine features a maximum power output of 370 kW (500 PS) at 1800 rpm, making it an ideal choice for medium-sized vessels, workboats, and other heavy-duty marine applications. It has a displacement of 12.1 liters and a stroke length of 140 mm, which contributes to its robustness and durability.
The engine is equipped with a high-pressure, electronic fuel injection system and a high-pressure, electronic common rail fuel pump. This system ensures optimal combustion and ensures that the engine delivers its maximum power output consistently. The engine also features a high-pressure, electronically controlled, variable geometry, turbocharger, which helps to improve the engine's power-to-weight ratio and reduces fuel consumption.
The SB12G engine is equipped with a high-quality, cast-iron cylinder block and a high-strength, forged, compacted graphite iron (CGI) crankshaft. This ensures that the engine is able to withstand the rigors of marine use and provides excellent durability and reliability. The engine also features a fully-automatic, electronically controlled, common rail fuel injection system, which ensures precise fuel injection and reduces emissions.
The SB12G engine is also equipped with a high-capacity, water-cooled, aftercooler, which helps to reduce the temperature of the exhaust gases and improve the engine's efficiency. The engine also features a high-capacity, water-cooled, oil cooler, which helps to ensure that the engine's oil remains at an optimal temperature, even under heavy load conditions.
The SB12G engine is also equipped with a high-capacity, water-cooled, charge air cooler, which helps to ensure that the engine's intake air is at an optimal temperature, which in turn improves the engine's performance and efficiency. The engine also features a high-capacity, water-cooled, engine jacket cooling system, which helps to ensure that the engine's internal temperature remains at an optimal level, even under heavy load conditions.
The engine is also equipped with a high-capacity, water-cooled, transmission oil cooler, which helps to ensure that the engine's transmission oil remains at an optimal temperature, even under heavy load conditions. The engine also features a high-capacity, water-cooled, hydraulic oil cooler, which helps to ensure that the engine's hydraulic oil remains at an optimal temperature, even under heavy load conditions.
The SB12G engine is also equipped with a high-capacity, water-cooled, engine-driven, freshwater pump, which provides a reliable source of freshwater for use on board the vessel. The engine also features a high-capacity, water-cooled, engine-driven, seawater pump, which provides a reliable source of seawater for use on board the vessel.
The SB12G engine is also equipped with a high-capacity, water-cooled, engine-driven, air conditioning compressor, which provides a reliable source of cooling for the vessel's air conditioning system. The engine also features a high-capacity, water-cooled, engine-driven, generator set, which provides a reliable source of electrical power for the vessel's electrical systems.
In conclusion, the SB12G Yanmar diesel marine engine is a powerful and reliable workhorse designed for a variety of marine applications. Its CRDI system ensures precise fuel injection, resulting in lower fuel consumption, reduced emissions, and improved performance. The engine's high-capacity cooling systems, along with its high-quality components, ensure that it is able to withstand the rigors of marine use and provide excellent durability and reliability. The engine's many features, such as its high-capacity water pumps and air conditioning compressor, make it an ideal choice for medium-sized vessels, workboats, and other heavy-duty marine applications.
Pros of buying SB12G Yanmar Diesel Marine Engine:1. Reliability: Yanmar engines are known for their durability and reliability, which makes the SB12G a good choice for marine applications.
2. Fuel Efficiency: The SB12G is a diesel engine, which means it is generally more fuel-efficient than gasoline engines.
3. Power: With a power output of 120 horsepower, the SB12G is capable of powering a variety of marine vessels.
4. Wide Availability: Yanmar engines are widely available, which means replacement parts and service are easy to find.
5. Easy Maintenance: Yanmar engines are designed for easy maintenance, which can save you time and money in the long run.
Cons of buying SB12G Yanmar Diesel Marine Engine:1. High Initial Cost: Diesel engines can be more expensive to purchase than gasoline engines, which can be a disadvantage for some buyers.
2. Noise: Diesel engines can be louder than gasoline engines, which may be a concern for some boaters.
3. Complexity: Diesel engines can be more complex than gasoline engines, which may require more technical knowledge to maintain and repair.
4. Emissions: Diesel engines can produce more emissions than gasoline engines, which may be a concern for environmentalists.
Conclusion:The SB12G Yanmar Diesel Marine Engine is a reliable and powerful option for boaters looking for a diesel engine. Its fuel efficiency, wide availability, and easy maintenance make it a good choice for many applications. However, its high initial cost, noise level, complexity, and emissions may be disadvantages for some buyers. Ultimately, the decision to buy the SB12G should be based on your specific needs and preferences.
Recommendation:If you are looking for a reliable and powerful diesel engine for your marine vessel, the SB12G Yanmar Diesel Marine Engine is a good option to consider. However, be sure to weigh the pros and cons carefully and consider your specific needs and preferences before making a decision. It may also be a good idea to get a professional opinion from a marine engine specialist to ensure that the engine is the best fit for your vessel.
Approximate dimensions 27 high, 27 long and 23 wide. Engine appears to be in good condition with minimal surface rust. These legendarily robust engines rarely appear for sale. Purchased to install in my sailboat but too big to fit.
Engine listed for sale locally. My loss is your gain. Does not include engine mounts or control panel.
Used 12 hp Marine diesel engine and transmission.