Sign In
Welcome! Sign In to personalize your Cat.com experience
If you already have an existing account with another Cat App, you can use the same account to sign in here
Register Now
One Account. All of Cat.
Your Caterpillar account is the single account you use to log in to select services and applications we offer. Shop for parts and machines online, manage your fleet, go mobile, and more.
Account Information
Site Settings
Security
When you’re on the move, chasing the perfect catch, you need a fishing engine that won’t let you down. Cat engines for fisheries vessels keep you up and going, no matter how challenging the weather or operating conditions. We’ve been powering vessels of all sizes and types since the 1940s.
Every Cat diesel fishing boat engine is built tough to handle long hours and variable conditions
Custom options from the factory mean you can tailor your engine to suit your needs
Extended maintenance intervals let you spend more time fishing, less time servicing
Industry-best parts availability gets you back on the water fast
Cat dealer support is on hand whenever — and wherever — you need it
Engines for fisheries vessels are also available for aquafarming and capture fishing
Diesel emissions technology and alternative fuels, like LNG, are a focus of Caterpillar Marine with a commitment to programs that reduce emissions from diesel engines.
Learn MoreEngine 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.
Learn MoreThe mechanically governed 3406C marine propulsion engine is available “A” rating of 365 bhp (272 bkW) and a “B” rating of 400 bhp (298 bkW).
Learn MoreThe Cat 3512C marine propulsion engine makes your investment work harder. Through a wide range of available power ratings (including High Displacement ratings), no required aftertreatment technology, and nominal rated BSFC fuel consumption - it will drive down your total cost of ownership. With a redesigned piston bowl shape to improve combustion, and improved fuel delivery, this engine is IMO II emissions compliant and committed to sustainable environmental development. Single-source support, the Caterpillar warranty, and industry-leading one-year warranty on parts make the 3512C a fully integrated marine power solution.
Learn MoreThe 3512C High Displacement marine engines are now available in a wide range of ratings that meet EPA Marine Tier 3 and IMO II regulations without any additional aftertreatment. These new propulsion, auxiliary, and DEP engines, designed and built from the current 3512C and 3516C platforms, have minimal dimensional and weight changes in comparison. Owning and operating costs are also very similar. For the specific fuel consumption of each rating please refer to the performance data. New features include stainless steel exhaust heat shields, closed crankcase ventilation system, and EPA Tier 3 compliance.
Learn MoreThe 3512E marine propulsion engine is now available in a wide range of ratings that meet U.S. EPA Tier 4 Final and IMO III marine emissions regulations. As the commercial marine industry adjusts their operations to meet U.S. EPA Tier 4 Final and IMO III emissions standards, Caterpillar Marine has introduced a solution built to maximize performance while meeting regulations. Caterpillar's combination of a fuel-efficiency-optimized engine and a selective catalytic reduction (SCR) aftertreatment system is a solution that not only reduces NOx emissions, but can also lower a customer's owning and operating costs in the process.
Learn MoreThe 3516C propulsion engine is available with a wide range of ratings that meet IMO II regulations without any additional aftertreatment. These engines provide efficient operation with electronic governing, cold mode start strategy, and programmable low idle to minimize fuel consumption. The 3516C engine also incorporates a closed crankcase ventilation system to lower emissions.
Learn MoreThe 3516C propulsion engine is available with a wide range of ratings that meet EPA Tier 3 and IMO II regulations without any additional aftertreatment. These engines provide efficient operation with electronic governing, cold mode start strategy, and programmable low idle to minimize fuel consumption. The 3516C engine also incorporates a closed crankcase ventilation system to lower emissions.
Learn MoreBuilding on the durability and reliability of the 3500 engine platform, Caterpillar Marine is pleased to offer an uprated version of the Cat 3516E Marine Propulsion Engine. The high-performance engine delivers 19% more rated power, lower ambient heat rejection, and improved acceleration time. With a focus on serviceability and digitalization, this product provides easier connectivity and installation. It is designed for small engine rooms with its reduction in weight & size and is an ideal solution for Tug, Governmental, and Yachting.
Learn MoreThe 3516E marine propulsion engine is now available in a wide range of ratings that meet U.S. EPA Tier 4 Final and IMO III marine emissions regulations. As the commercial marine industry adjusts their operations to meet EPA Tier 4 Final and IMO III emissions standards, Caterpillar Marine has introduced a solution built to maximize performance while meeting regulations. Caterpillar's combination of a fuel-efficiency-optimized engine and a selective catalytic reduction (SCR) aftertreatment system is a solution that not only reduces NOx emissions, but can also lower a customer's owning and operating costs in the process.
Learn MoreCat® C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. There is also a wide range of optional equipment available to meet the needs of your marine commercial or pleasure craft application.
Learn MoreThe C18 ACERT marine propulsion engine has commercial application ratings of 454-715 bhp that meet IMO II & EU Stage IIA emissions regulations, and 469-715 bhp that meet EPA Tier 3, IMO II and EU Stage IIIA emissions regulations. In addition to the benefits the C18 ACERT's advanced marine engine technology brings, you welcome aboard legendary Cat product support. No matter where your spirit of adventure takes you, rest assured the Cat Dealer Network is close by.
Learn MoreThe C18 ACERT marine propulsion engine has commercial application ratings of 475-725 mhp (469-715 bhp) at 1800-2100 rpm that meet U.S. EPA Tier 3, IMO II, and EU IW emissions regulations. In addition to meeting the stricter EPA Tier 3 emissions, this engine now offers a fresh water aftercooled option for the commercial propulsion and auxiliary engines and genset packages. From fishing to offshore and everything in between, you can be confident that we have the solution to fit your needs.
Learn MoreBuilding on the durability and reliability of the C280 engine platform, Caterpillar is pleased to offer the IMO II compliant C280 engine line. The core components are the same as the existing C280, including the latest in EUI fuel system capabilities and state-of-the-art ADEM™ A3 Electronic Control Unit (ECU) features. Caterpillar® products continue to deliver more available power while delivering outstanding fuel efficiency. You can also count on long maintenance intervals and worldwide Caterpillar parts and service availability.
Learn MoreA leader in the high performance medium speed engine market, the C280 is now available with 4500bkW and 6000bkW ratings to provide even greater power density in your weight critical applications. New performance iron for improved combustion efficiency and lower visible smoke, as well as a redesigned hard heat shield system are standard on all ratings. With 30 years of proven performance and durability, the C280 is the right solution for both newbuild and repower opportunities, particularly in Governmental and Ferry applications.
Learn MoreBuilding on the durability and reliability of the C280 engine platform, Caterpillar is pleased to offer the EPA Tier 2 compliant C280 engine line. The core components are the same as the existing C280, including the latest in EUI fuel system capabilities and state-of-the-art ADEM™ A3 Electronic Control Unit (ECU) features. Caterpillar® products continue to deliver more available power while delivering outstanding fuel efficiency. You can also count on long maintenance intervals and worldwide Caterpillar parts and service availability.
Learn MoreBuilding on the durability and reliability of the C280 engine platform, Caterpillar is pleased to offer the EPA Tier 2 compliant C280 engine line.
Learn MoreBuilding on the durability and reliability of the C280 engine platform, Caterpillar is pleased to offer the IMO II C280 engine line. The core components are the same as the existing C280, including the latest in EUI fuel system capabilities and state-of-the-art ADEM™ A3 Electronic Control Unit (ECU) features. Caterpillar® products continue to deliver more available power while delivering outstanding fuel efficiency. You can also count on long maintenance intervals and worldwide Caterpillar parts and service availability.
Learn MoreBuilding on the durability and reliability of the C280 engine platform, Caterpillar is pleased to offer the IMO II compliant C280 engine line. The core components are the same as the existing C280, including the latest in EUI fuel system capabilities and state-of-the-art ADEM™ A3 Electronic Control Unit (ECU) features. Caterpillar® products continue to deliver more available power while delivering outstanding fuel efficiency. You can also count on long maintenance intervals and worldwide Caterpillar parts and service availability.
Learn MoreBuilding on the durability and reliability of the C280 engine platform, Caterpillar is pleased to offer the EPA Tier 2 compliant C280 engine line.
Learn MoreThe C32 ACERT marine propulsion engine is available at ratings that meet both EPA Tier 3 and IMO II emissions regulations. It has a separate circuit aftercooling system (SCAC) for A through C ratings and a seawater aftercooling system (SWAC) for D and E ratings. The C32 ACERT has seven ratings with Wide Operating Speed Range (WOSR) and extended oil change intervals. Other benefits include proven engine operating history and performance iron with thousands of validation testing hours for quality and durability. The C32 ACERT marine engine is supported by the extensive Cat global dealer network and standard warranty.
Learn MoreThe C32 marine propulsion engine is available at ratings that meet IMO II emissions regulations. It has a separate circuit aftercooling system (SCAC) for A through C ratings, six ratings with Wide Operating Speed Range (WOSR) and extended oil change intervals. Other benefits include proven engine operating history and performance iron with thousands of validation testing hours for quality and durability. The C32 marine engine is supported by the extensive Cat global dealer network and Caterpillar's standard warranty.
Learn MoreCat C32 Propulsion Engine (US EPA Tier 3 / IMO II)
Learn MoreCat C32 Propulsion Engine (US EPA Tier 4 / IMO III)
Learn MoreC7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)
Learn MoreThe C9.3 ACERT propulsion engine has a B rating of 375 bhp (280 bkW) at 1800 rpm, a C rating of 416 bhp (310 bkW) at 2100 rpm, and a D rating of 476 bhp (355 bkW) at 2300 rpm. The C9.3 propulsion, auxiliary, and generator set engines have a common rail fuel system for optimal combustion and lower emissions. Cooling system options for the propulsion and auxiliary engines include heat exchanger with sea water aftercooling, and keel with combined circuit or separate circuit aftercooling. The genset packages are available with heat exchanger, keel, or radiator cooling. These products are EPA Tier 3 and IMO II certified. In addition the propulsionengine ratings are EU Stage IIIA certified and auxiliary and gen sets are also CCNR Stage II certified.
Learn More