Robust Cat Diesel Engines for Auxiliary Power

Powerful Support at Sea with CAT Auxiliary Propulsion Engines

Our Cat auxiliary diesel engines provide the ideal solution for maritime operations, guaranteeing outstanding performance and reliability. Specifically designed for use under demanding conditions, these engines ensure a constant power supply for all essential onboard functions. With their excellent fuel efficiency and reduced emissions, Cat auxiliary drives significantly optimize the operation of your vessels. Their compact and robust design ensures that all supporting systems are always ready for operation, promoting the safety and efficiency of your sea voyages in the long term.

Power Overview for Diesel Engines 71 - 944 bkW

Technical Specifications

Engine Type	Power in bkW	Speed range RPM	Emissions	Exhaust Gas Aftertreatment	Configuration	Displacement in liters	Bore in mm	Stroke in mm	Flywheel housing	Cooling	Intake system	Dimensions in mm	Weight in kg (dry)
C4.4	71 - 129	1.500 - 1.800	EU V	-	Four-cylinder four-stroke inline engine	4,4	105	127	SAE-Nr. 3	Heat exchangers or keel cooling	Turbocharging – Intercooling	856 x 1.038 x 778 - 814	545 - 580
C7.1	109 - 219	1.500 - 1.800	IMO II, EU V	IMO III, EU V (109-129 bkW)	Four-cylinder four-stroke inline engine	7,1	105	135	SAE-Nr. 3	Heat exchangers or keel cooling	Turbocharging – Intercooling	1.112 x 1.056 x 817 - 829	686 - 750
C9.3	218 - 325	1.800 - 2.300	IMO II, IMO III	IMO II: ohne, IMO III: SCR	Six-cylinder four-stroke inline diesel engine	9,3	115	149	SAE-Nr. 1	Heat exchangers or keel cooling	Turbocharging – Intercooling	1.452 x 1.093 x 978	945 - 1.122
C18	301 - 599	1.500 - 1.800	IMO II, EU V	IMO III: SCR, EU V: DPF/SCR	Six-cylinder four-stroke inline diesel engine	18,1	145	183	SAE-Nr. 0-1	Heat exchangers or keel cooling	Turbocharging – Intercooling	1.854 - 1.931 x 1.198 - 1.300 x 1.134 - 1.204	1.814 - 1.950
C32	590 - 944	1.500 - 1.800	IMO II, IMO III, EU V	IMO III: SCR , EU V: DPF / SCR	V12 four-stroke diesel engine	32,1	145	162	SAE-Nr. 00-0	Radiator, Heat exchangers or keel cooling	Turbocharging – Intercooling	2.121 - 2.284 x 1.547 - 1.587 x 1.528	3.152 -3.248

Do you have any questions about our marine auxiliary propulsion engines? We are happy to assist you.

Flexible power for a variety of applications

The Cat engines C4.4, C7.3, C9.3, C18, and C32 offer a wide power range from 71 to 944 bkW and are perfect for a variety of maritime applications. These engines combine reliability, compact design, and excellent fuel efficiency, making them ideal for smaller workboats, fishing boats, and yachts. With their robust construction and adaptability, they provide the necessary power to operate your vessels safely and efficiently.

Power Overview for Diesel Engines 1,268 - 2,368 bkW

Technical Specifications

Engine Type	Power in bkW	Speed range RPM	Emissions	Exhaust Gas Aftertreatment	Configuration	Displacement in liters	Bore in mm	Stroke in mm	Flywheel housing	Cooling	Intake system	Dimensions in mm	Weight in kg (dry)
3512E	1.268 - 1.789	1.500 - 1.800	IMO II, IMO III	IMO II: without, IMO III: SCR	V12 four-stroke diesel engine	58,6	170	215	SAE-Nr. 00	Heat exchangers or keel cooling	Turbocharging – Intercooling	2.324 x 2.223 x 2.037	7.488
3512C	1.350 - 1.786	1.500 - 1.800	IMO II	-	V12 four-stroke diesel engine	51,8 - 58,6	170	190 - 215	SAE-Nr. 00-0	Heat exchangers or keel cooling	Turbocharging – Intercooling	2.590 - 2.669 x 1.904 - 2.242 x 1.037 - 2.232	6.532 - 7.411
3516C	1.717 - 2.350	1.500 - 1.800	IMO II	-	V16 four-stroke diesel engine	69 - 78	170	190 -215	SAE-Nr. 00	Heat exchangers or keel cooling	Turbocharging – Intercooling	3.637 - 3.761 x 1.967 - 2.150 x 2.037 - 2.142	7.964 - 8.629
3516E	1.921 - 2.368	1.500 - 1.800	IMO II, IMO III	IMO II: without, IMO III: SCR	V16 four-stroke diesel engine	78	170	215	SAE-Nr. 00	Heat exchangers or keel cooling	Turbocharging – Intercooling	3.192 x 2.225 x2.284	9.600

Do you have any questions about our marine auxiliary propulsion engines? We are happy to assist you.

Power for Big Challenges

The Cat engines C3512E, C3512C, C3516C, and C3516E cover the power range from 1,268 to 2,368 bkW and are the first choice for larger vessels and demanding maritime applications. These engines provide the highest reliability and performance for offshore tugs, large cargo ships, and supply vessels. With advanced technology and a robust design, they deliver the power and efficiency needed to perform under extreme conditions.

Power Overview for Diesel Engines 1,730 - 5,420 bkW

Technical Specifications

Engine Type	Power in bkW	Speed range RPM	Emissions	Exhaust Gas Aftertreatment	Configuration	Displacement in liters	Bore in mm	Stroke in mm	Flywheel housing	Cooling	Intake system	Dimensions in mm	Weight in kg (dry)
C280-6	1.730 - 2.030	900 - 1.000	IMO II	-	Six-cylinder four-stroke inline diesel engine	111	280	300	no	Heat exchangers or keel cooling	Turbocharging – Intercooling	4.276 x 3.691 x. 2,733	15.680
C280-8	2.300 - 2.710	900 - 1.000	IMO II, IMO III	IMO II: without, IMO III: SCR	Eight-cylinder four-stroke inline engine	148	280	300	no	Heat exchangers or keel cooling	Turbocharging – Intercooling	4.953 x 2.642 x 1.803	19.000
C280-12	3.460 - 4.060	900 - 1.000	IMO II, IMO III	IMO II: without, IMO III: SCR	V12 four-stroke diesel engine	222	280	300	no	Heat exchangers or keel cooling	Turbocharging – Intercooling	4.623 x 3.404 x 2.032	25.980
C280-16	4.600 - 5.420	900 - 1.000	IMO II, IMO III	IMO II: without, IMO III: SCR	V16 four-stroke diesel engine	296	280	300	no	Heat exchangers or keel cooling	Turbocharging – Intercooling	5.482 x 1.704 x 3.171	28.500

Do you have any questions about our marine auxiliary propulsion engines? We are happy to assist you.

Maximum power for demanding applications

The Cat engines C280-6, C280-8, C280-12, and C280-16 deliver immense power from 1,730 to 5,420 bkW and are designed for the most demanding maritime applications. These high-performance engines are ideal for large cargo ships, cruise ships, and offshore platforms that require maximum reliability and unmatched performance. With their robust design and superior efficiency, they ensure that your vessels operate safely and powerfully, even under extreme conditions.

Key benefits for your organization

High reliability and durability

Cat engines are known for their extreme reliability, delivering long-lasting performance even under the most demanding maritime conditions. This ensures maximum uptime and minimizes unplanned maintenance.

Superior fuel efficiency

The advanced technology of Cat engines enables optimal fuel utilization, reducing operating costs and increasing vessel range. This is especially important for long missions at sea.

Compliance with emission standards

Cat engines are equipped with modern exhaust gas after-treatment systems that meet stringent environmental regulations and significantly reduce emissions. This makes them an eco-friendly choice for the maritime sector.

Adaptability

Cat engines are available in a wide power range and offer flexible configuration options to meet the specific requirements of various vessels. Whether for small workboats or large cargo ships, Cat engines can be customized and provide solutions for a wide range of maritime applications.

Powerful Diesel Generators for Auxiliary Propulsion from CAT

Discover the perfect solution for your auxiliary propulsion: CAT Diesel Generators

When it comes to reliable power supply for your auxiliary propulsion, Cat diesel generators are the first choice. They offer not only outstanding performance and durability but are also designed for operation under extreme maritime conditions. With their high fuel efficiency and advanced technology, Cat diesel generators ensure that your vessels remain operational and efficient.

Learn more about our Cat diesel generators for auxiliary propulsion and find the perfect solution for your needs.

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