Marine Power Systems
Engine uptime is critical for you, your crew, your clients and your bottom line. That's why Cat propulsion engines power your vessel to any port. The industry's largest range of engines provide the reliability you need. Caterpillar Marine ensure that you have an engine on board that will work as hard as you do. Select from our wide range of Commercial Propulsion Engines, High Performance Propulsion Engines, Marine Generators, and Auxiliary Engines.
Industry-leading technology allows Caterpillar to create the most reliable commercial engines for a variety of applications. From tugs and container vessels to yachts and sport fishers, Cat engines have demonstrated their efficiency countless times. With remarkable reliability and durability, these engines will exceed your expectations for decades.
Auxiliary Engines
Cat® marine auxiliary engines are the solution for unique generator set applications requiring a custom approach. Additionally, the are perfectly engineered for electrically driven pumps, winches, conveyors and thrusters.
Minimum Rating
404 BHP / 465 bkWMaximum Rating
803 BHP / 599 bkWAspiration
TA, TTAMinimum Rating
2320 BHP / 1730 bkWMaximum Rating
7268 BHP / 5420 bkWAspiration
Turbocharged - AspiratorMinimum Rating
1047 BHP / 781 bkWMaximum Rating
1332 BHP / 994 bkWAspiration
Turbocharged- AftercooledAspiration
Turbocharged - Aftercooled and turbo only aspiration (Turbocharged aspiration only for 65ekW (71bkW))
Commercial Propulsion Engines
Long-term durability, high fuel efficiency, simplified service, and long-life-to-overhaul - Cat® marine engines provide maximum productivity with minimum outlay.
Power Range
1281 - 2552 bhpSpeed Range
1200 - 1800 rpmEmissions
IMO II, China Stage IIPower Range
1341-2550 bhp (1000-1902 bkW)Speed Range
1600 - 1800 rpmEmissions
U.S. EPA Tier 4, IMO II/III, EU Stage 5Power Range
2000-3385 bhp (1492-2525 bkW)Speed Range
1200-1800 rpmEmissions
IMO IIPower Range
2501-3386 bhp (1865-2525 bkW)Speed Range
1600 - 1800 rpmEmissions
U.S. EPA Tier 4, IMO II, IMO III, IMO II/III switchablePower Range
340-490 bhp (254-366 bkW)Speed Range
1800-2300 rpmEmissions
IMO IIPower Range
454 - 1136 bhp (339 - 847 bkW)Speed Range
1500 - 2100 rpmEmissions
U.S. EPA Tier 3 Commercial, IMO II, EU IWW, EU Stage V, China IIPower Range
4640 - 6035 bhp (3460-4500 bkW)Speed Range
900 - 1000 rpmEmissions
IMO II, U.S. EPA Tier 4/IMO III (Cat SCR required)Power Range
6169-8046 bhp (4600-6000 bkW)Speed Range
900-1000 rpmEmissions
IMO IIPower Range
2320-2722 bhp (1730-2030 bkW)Speed Range
900-1000 rpmEmissions
IMO IIPower Range
3084-4023 bhp (2300-3000 bkW)Speed Range
900 - 1000 rpmEmissions
IMO II, IMO III/EPA Tier 4Power Range
660 - 1600 bhp (492 - 1193 bkW)Speed Range
1600 - 2300 rpmEmissions
U.S. EPA Tier 3/ Tier 4, IMO II/III, EU Stage VPower Range
280 bhp - 425 bhp (209 bkW - 317 bkW)Speed Range
2300 - 2700 rpmEmissions
U.S. EPA Tier 3, IMO II, RCD II, China IIPower Range
375-476 bhp (280 - 355 bkW)Speed Range
1800 - 2300 rpmEmissions
IMO II, U.S. EPA Tier 3, China Stage IIPower Range
3755-4023 bhp (2800-3000 bkW)Speed Range
1800 rpmEmissions
IMO II
Controls
Controls
High Performance Propulsion and Maneuvering Solutions
With power requirements like never before, the success of every vessel depends on efficient, dependable, and powerful marine engine. Cat® engines satisfy worldwide emissions regulations and still deliver a surge of adrenaline whenever and wherever required.
Power Range
1340-2366 bhp (1000-1765 bkW)Speed Range
1600-1800 rpmEmissions
EPA Tier 3, IMO IIPower Range
340 - 705 bhp (254 - 526 bkW)Speed Range
1800 - 2300 rpmEmissions
IMO I, IMO IIPower Range
803 - 1136 bhp, 599 - 847 bkWSpeed Range
2300 rpmEmissions
EPA Tier 3, IMO IIPower Range
1600-1900 bhp (1193-1417 bkW)Speed Range
2300 rpmEmissions
IMO II, U.S. EPA Tier 3 Recreational, RCD, China Stage IIPower Range
1800-2400 bhp (1342-1790 bkW)Speed Range
2300 rpmEmissions
IMO II/III, U.S. EPA Tier 3 (recreational), RCD, China IIPower Range
400 - 500 bhp (298 - 373 bkW)Speed Range
2900 rpmEmissions
IMO II, U.S. EPA Tier 3, RCD II, China II
Marine Generator Sets
Cat marine generator sets are built to provide dependable, efficient service under extreme conditions. Our marine diesel generators combine proven designs and manufacturing methods with the latest technology, such as advanced control, to deliver more power and greater efficiency, while offering enhanced monitoring.