The Yanmar 6AYE-M is a high-performance, 6-cylinder, 4-stroke, vertical, water-cooled diesel engine designed for commercial marine applications. With a displacement of 20.379 liters and a bore and stroke of 155 mm x 180 mm, it delivers a maximum output of 749 kW (1,018 mhp) at 2,000 rpm. This engine features turbocharging and intercooling for enhanced performance. The direct injection system ensures efficient fuel delivery, and the engine is equipped with an electric starting system (24V - 8.0 kW). Cooling is provided by a heat exchanger system. The engine weighs approximately 2,418 kg (5,328 lbs) and has dimensions of 2,000 x 1,305 x 1,431 mm. It complies with emission standards such as IMO Tier II and EPA Tier III, making it suitable for various commercial marine applications

ENGINE SPECIFICATIONS
Rated Output              Rated Speed           Emissions          
749 kW / 1,018 mhp    2000 RPM             EPA Tier 2/3             

The Yanmar 6LYCR is a 6-cylinder, 4-stroke, vertical, water-cooled diesel engine designed for marine applications. With a displacement of 4.164 liters and a bore and stroke of 94 mm x 100 mm, it delivers a maximum output of 232 kW (315 mhp) at 3800 rpm. This engine features turbocharging and intercooling for enhanced performance. The direct injection system ensures efficient fuel delivery, and the engine is equipped with an electric starting system (12V - 2.5 kW). Cooling is provided by fresh water and seawater pumps, while an enclosed, forced lubrication system ensures smooth operation. The engine weighs 408 kg (899 lbs) and has dimensions of 1220 x 666 x 739 mm. It complies with emission standards such as EU RCD 1, IMO Tier 2, and EPA Tier 2, making it suitable for various marine applications. 

ENGINE SPECIFICATIONS
Rated Output        Rated Speed      Emissions          
232 kW / 315 mhp    3800 RPM          EPA Tier 2             

The Yanmar 6GY135W is a high-performance, 6-cylinder, 4-stroke, vertical, water-cooled diesel engine designed for marine applications. With a displacement of 14.6 liters and a bore and stroke of 135 mm x 170 mm, it delivers a maximum output of 599 kW (803 mhp) at 2100 rpm. This engine features turbocharging and intercooling for enhanced performance. The direct injection system utilizes a common rail system for efficient fuel delivery, and the engine is equipped with an electric starting system (24V - 6.0 kW). Cooling is provided by a heat exchanger system. The engine weighs 1825 kg (4026 lbs) and has dimensions of 1645 x 1055 x 1254 mm. It complies with emission standards such as IMO Tier II and Tier III, making it suitable for various marine applications

ENGINE SPECIFICATIONS
Rated Output           Rated Speed      Emissions          
599 kW / 803 mhp     2100 RPM            EPA Tier 2/3          

The Yanmar 6EY26DF is a 6-cylinder, 4-stroke, vertical, water-cooled diesel engine designed for marine applications. With a displacement of 4.164 liters and a bore and stroke of 94 mm x 100 mm, it delivers a maximum output of 232 kW (315 mhp) at 3800 rpm. This engine features turbocharging and intercooling for enhanced performance. The direct injection system ensures efficient fuel delivery, and the engine is equipped with an electric starting system (12V - 2.5 kW). Cooling is provided by fresh water and seawater pumps, while an enclosed, forced lubrication system ensures smooth operation. The engine weighs 408 kg (899 lbs) and has dimensions of 1220 x 666 x 739 mm. It complies with emission standards such as EU RCD 1, IMO Tier 2, and EPA Tier 2, making it suitable for various marine applications. 

ENGINE SPECIFICATIONS
Rated Output             Rated Speed       Emissions          
232 kW / 315 mhp       3800 RPM           EPA Tier 2             

The Yanmar 6LF550 is a 6-cylinder, 4-stroke, vertical, water-cooled diesel engine designed for marine applications. With a displacement of 6.728 liters and a bore and stroke of 104 mm x 132 mm, it delivers a maximum output of 404 kW (550 mhp) at 3000 rpm. This engine features turbocharging and intercooling for enhanced performance. The direct injection system utilizes a Bosch common rail system for efficient fuel delivery, and the engine is equipped with an electric starting system (12V - 3kW or 24V - 4kW). Cooling is provided by fresh water and seawater pumps, while an enclosed, forced lubrication system ensures smooth operation. The engine weighs 780 kg (1720 lbs) and has dimensions of 1519 x 893 x 881 mm. It complies with emission standards such as EU RCD 2, IMO Tier 2, and EPA Tier 3, making it suitable for various marine applications.

ENGINE SPECIFICATIONS
Rated Output          Rated Speed       Emissions          
404 kW / 803 mhp    3000 RPM             EPA Tier 3          

The Yanmar 6LTA is a 6-cylinder, 4-stroke, vertical, water-cooled diesel engine designed for marine applications. With a displacement of 4.164 liters and a bore and stroke of 94 mm x 100 mm, it delivers a maximum output of 232 kW (315 mhp) at 3800 rpm. This engine features turbocharging and intercooling for enhanced performance. The direct injection system ensures efficient fuel delivery, and the engine is equipped with an electric starting system (12V - 2.5 kW). Cooling is provided by fresh water and seawater pumps, while an enclosed, forced lubrication system ensures smooth operation. The engine weighs 408 kg (899 lbs) and has dimensions of 1220 x 666 x 739 mm. It complies with emission standards such as EU RCD 1, IMO Tier 2, and EPA Tier 2, making it suitable for various marine applications. 

ENGINE SPECIFICATIONS
Rated Output          Rated Speed        Emissions          
232 kW / 315 mhp    3800 RPM             EPA Tier 2             

The Yanmar 6AY Series (including variants such as 6AYAM-ET, 6AYM-WST, 6AYM-WET, and 6AYM-WGT) are 6-cylinder, in-line, 4-stroke, vertical, water-cooled diesel engines, purpose-built for heavy-duty marine propulsion in commercial vessels. They feature turbocharging and intercooling (with keel cooling or heat exchanger options) and direct injection, delivering robust performance and reliability. The engines utilize a 24 V electric starting system (7 kW) and meet IMO Tier II (with some variants also EPA Tier III compliant), ensuring adherence to global emission standards. They are engineered with an SAE #0 flywheel housing and SAE #18 flywheel, weigh approximately 2,295–2,365 kg (dry, without marine gear), and their dimensions are roughly 1,949 × 1,274 × 1,544 mm (for certain models) or 2,000 × 1,305 × 1,431 mm for others

ENGINE SPECIFICATIONS
Rated Output              Rated Speed       Emissions          
670 kW / 911 mhp        1938 RPM            EPA Tier 2             

The Yanmar 12AY series comprises 12-cylinder, V-type, 4-stroke, vertical, water-cooled marine diesel engines, engineered for high-speed commercial propulsion. These engines boast a displacement of 40.76 liters with a bore and stroke of 155 mm × 180 mm. Featuring turbocharging and intercooling, and a direct injection combustion system, they ensure efficient and robust performance. The starting system includes either dual electric motors (24 V, 6.5 kW each) or dual air motors, while cooling uses a constant high-temperature cooling system. Designed for demanding marine environments, the engines meet IMO Tier II emission standards, utilize an SAE #00 flywheel housing and 21-inch flywheel, and present a dry mass of approximately 4,950 kg (without marine gear). Their dimensions are 2,743 mm (L) × 1,642 mm (W) × 1,707 mm (H)

ENGINE SPECIFICATIONS
Rated Output              Rated Speed           Emissions          
1340 kW / 315 mhp        1940 RPM             EPA Tier 2             

The Yanmar 4TNV86CHT is a compact yet powerful, in-line, 4-cylinder, 4-stroke, vertical, water-cooled diesel engine engineered for industrial, construction, and heavy-duty applications. It delivers a maximum output of 48.5 kW (65 mhp) at 2600 rpm, featuring a displacement of 2.091 L with a bore and stroke of 86 mm × 90 mm. Equipped with turbocharging and direct injection, this engine meets stringent EU Stage V and EPA Tier IV Final emission standards. The dry weight is approximately 210 kg, and its design emphasizes durability, compactness, and regulatory compliance.

ENGINE SPECIFICATIONS
Rated Output        Rated Speed        Emissions          
48.5 kW / 65mhp      2600 RPM           EPA Tier 3             

The Yanmar 4TNV98CT is a robust, in-line, 4-cylinder, 4-stroke, vertical, water-cooled diesel engine ideal for industrial and generator applications. It delivers a maximum output of 53.7 kW (73 mhp) at 2500 rpm. Each model features a displacement of 3.319 L with a bore and stroke of 98 mm × 110 mm. The engine utilizes turbocharging and a direct injection system, with a common-rail fuel system and electronic engine control for improved efficiency and emissions performance. The design includes water-cooled cooling, enclosed forced lubrication, and a 12 V–80 A electrical system. Compact and reliable, it weighs approximately 275 kg (dry) and measures 963 × 600 × 821 mm (L × W × H). Certified to EU Stage V and EPA Tier IV Final emission standards, it meets both industrial and generator regulatory requirements.

ENGINE SPECIFICATIONS
Rated Output           Rated Speed      Emissions          
53.7 kW / 73mhp     2500 RPM             EPA Tier 3             

The Yanmar 4TN86CHT is a compact yet powerful, in-line, 4-cylinder, 4-stroke, vertical, water-cooled diesel engine engineered for industrial, construction, and heavy-duty applications. It delivers a maximum output of 48.5 kW (65 mhp) at 2600 rpm, featuring a displacement of 2.091 L with a bore and stroke of 86 mm × 90 mm. Equipped with turbocharging and direct injection, this engine meets stringent EU Stage V and EPA Tier IV Final emission standards. The dry weight is approximately 210 kg, and its design emphasizes durability, compactness, and regulatory compliance.

ENGINE SPECIFICATIONS
Rated Output         Rated Speed           Emissions          
48.5 kW / 65mhp      2600 RPM                EPA Tier 3             

The Yanmar 4TNV106T is a high-performance, in-line, 4-cylinder, 4-stroke, vertical, water-cooled diesel engine tailored for industrial, agricultural, construction, and generator applications. It delivers a maximum output of 74.5 kW (100 mhp) at 2200 rpm, thanks to its 4.412 L displacement and a bore and stroke of 106 mm × 125 mm. Featuring direct injection (DI) and turbocharging, the engine also emphasizes reduced noise and cleaner emissions through refined combustion chamber and fuel injection designs. Compact and robust, the dry weight is approximately 340 kg (bell housing/back plate configuration), and its dimensions are 890 × 628 × 869 mm (L × W × H). The engine is compliant with stringent emissions standards, including EPA Tier 3 and EU Stage III A

ENGINE SPECIFICATIONS
Rated Output         Rated Speed     Emissions          
48.5 kW / 65mhp     2600 RPM           EPA Tier 3             

The Yanmar 1GM10 is a compact, single-cylinder, vertical, water-cooled, naturally aspirated marine diesel engine designed for small to mid-sized sailboats and leisure crafts. With a displacement of 0.318 liters, it features an indirect injection system with a swirl-type pre-combustion chamber, providing smooth and efficient performance. The engine delivers a maximum output of 6.7 kW (9.0 MHP) at 3,600 rpm, ensuring reliable power while maintaining low fuel consumption. Its lightweight and compact design make it ideal for applications where space and weight are critical, and it includes a direct seawater cooling system for durability in marine environments.

ENGINE SPECIFICATIONS
Rated Output          Rated Speed     Emissions          
6.7 kW / 65mhp       3600 RPM            EPA Tier 1/2             

The Yanmar 2YM15 is a compact, 2-cylinder, vertical, water-cooled, naturally aspirated diesel engine designed for small to mid-sized sailboats and leisure crafts. With a displacement of 0.570 liters, it features an indirect injection system with an in-line pump, providing smooth and efficient performance. The engine delivers a rated output of 10.0 kW (13.6 MHP) at 3,600 rpm, ensuring reliable power while maintaining low fuel consumption. Its lightweight and compact design make it ideal for applications where space and weight are critical, and it includes a fresh water cooling system with a heat exchanger for durability in marine environments.

ENGINE SPECIFICATIONS
Rated Output          Rated Speed      Emissions          
10.0 kW / 65mhp     3600 RPM           EPA Tier 2/3            

The Yanmar 3YM20 is a compact, 3-cylinder, vertical, water-cooled, naturally aspirated diesel engine designed for small to medium-sized sailboats and leisure crafts. With a displacement of 0.854 liters, it features an indirect injection system with an in-line pump, providing smooth and efficient performance. The engine delivers a rated output of 15.3 kW (21.0 MHP) at 3,600 rpm, ensuring reliable power while maintaining low fuel consumption. Its lightweight and compact design make it ideal for applications where space and weight are critical, and it includes a fresh water-cooling system with a heat exchanger for durability in marine environments.

ENGINE SPECIFICATIONS
Rated Output              Rated Speed       Emissions          
10.0 kW / 65mhp        3600 RPM             EPA Tier 2/3