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Handle the heaviest loads in the toughest conditions with Caterpillar’s fully integrated power and propulsion systems. Whether in the harbor or at your terminal, we have everything you need to boost efficiency and keep your cost at the minimum.
Our dependable high-speed tugboat engines are most suitable for vessels with variable power needs in terms of acceleration, bollard pull and maneuverability. And, our medium-speed engines (heavy-fuel oil, marine diesel and dual fuel engines) are ideal for heavy-duty operations and higher average loads.
The 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 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 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 - 803 bhp at 1800 - 2100 rpm that meet U.S. EPA Tier 3, IMO II, EU IWW, and China II 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 C280-12 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. All C280-12 engines ratings are IMO II compliant. Engines rated at 3700 bkW and 4060 bkW, with aftertreatment, are IMO 3/EPA T4 compliant.
Learn MoreBuilding on the durability and reliability of the C280 engine platform, Caterpillar is pleased to offer the C280-16 engine line, now up to 6000 bkW. 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 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 C280-8 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.All C280-8 engines ratings are IMO II compliant. Engines rated at 2460 bkW and 2710 bkW, with aftertreatment, are IMO III/EPA Tier 4 compliant.
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 MoreIf you’re in the market for a new yacht, you have plenty of choices to make — including an option that wasn’t available a dozen years ago. What kind of propulsion system will you choose to power your boat: shaft or pod? The traditional shaft system has been around a long time, and it’s a perfectly good solution. But here are four reasons you may want to consider newer pod technology in your yacht instead.
Learn MoreAfter eight decades of operation, the barge Norman is still going strong. So is its 43-year-old Cat® engine. Together, they’re dredging up 2,000 tons of sand a day from Northern Ireland’s Lough Neagh.
Learn MoreIn 115 years of operation, much has changed for O’Hara Corporation. What hasn’t? For the past four decades, this American commercial fishing dynasty has relied on just one brand of marine engines.
Learn MoreWhen it comes to Tier 4 Final engines, the differences between SCR and EGR, and the availability of DEF on the inland waterways, there are plenty of misconceptions. Tony Odak of Stone Oil gives us the facts.
Learn MoreLeading Barge Line Forges Ahead With Engine CVAs Backed By Boyd Cat
Learn MoreMike Ragas of Delta Launch Services can’t understand why more people don’t add Cat Extended Service Coverage (ESC) for their engines. Find out why he says “it’s a bargain that’s hard to refuse.”
Learn MoreCat customer OCEARCH recently wrapped up two expeditions in Australia, where they tagged 29 tiger sharks. Cat® dealer support was critical during the expeditions that spanned 22 days and was held on both the East and West Coasts.
Learn MoreLearn more about Beyond the Iron - LNG as a Marine Fuel.
Learn MoreAs the world settles into 2018, the autonomous movement of freight is still a cutting edge development. There is some discussion about just how far this ‘edge’ is going to cut. How far ahead does one have to ‘see’ to see an unmanned sea?
Learn MoreAsked about their blueprint for a successful fishing boat, these 1950s-era commercial fishing operators all pointed to one common element: powerful, dependable Cat® marine power.
Learn MoreYou’ve seen it and you’ve read about it but have you been able to actually prove the lowest total lifecycle costs of your power solution options? One of the most commonly-used buzzwords in the commercial marine industry is also one of the hardest to precisely measure. That’s why Caterpillar has gone beyond traditional models to develop EVA™ (Engine Value Analysis) to accurately capture and compare the total lifecycle costs for engine platforms across multiple engine manufacturers.
Learn MoreCaptain Josh Temple of Primetime Adventures is on course to shatter the world record for most marlins tagged in a year – thanks to the Cat® marine engines and generator set powering his vessel, the Carol Libby.
Learn MoreCaptain Ed Kattel’s sport-fishing boat Cool Cat is the first in the world powered by new Cat® C7.1 marine engines. He recently shared the top four ways they’re outperforming previous models.
Learn MoreCat Concierge sprang into action to help the crew of PASSION address an engine issue, getting the luxury motor yacht back to sea quickly and safely in time for its next charter.
Learn MoreChina Engineers, Limited (CEL) proved the Cat® dealer value to a leading Chinese tug boat company, providing customized solutions for aftermarket engine maintenance and monitoring.
Learn MoreCaterpillar provides value to its marine customers with offerings including Bundled Repair Solutions, Extended Service Coverage, reman parts and more.
Learn MoreWhether scheduling a routine oil change or initiating an engine overhaul, Cat Concierge continues to be the service customers rely on to meet all their Caterpillar support needs wherever they are in the world.
Learn MoreCaterpillar Marine and MaK deliver dependable power for Arctic operations.
Learn MoreJust days before an important voyage, yacht VAVA experienced issues onboard that required immediate attention. Fortunately, VAVA was covered by Cat® Concierge.
Learn MoreCat Concierge sprang into action to help the crew of PASSION, getting the luxury motor yacht back to sea quickly and safely in time for its next charter.
Learn MoreWhen the Pacific Wave experienced an unexpected setback, the Cat Concierge team stepped in to keep the luxury yacht's charter business up and running.
Learn MoreWhen the Cat® engine powering Pacific Wave started having intermittent electrical issues, the Cat Concierge team stepped in to keep the luxury yacht’s charter business up and running.
Learn MorePotashCorp’s tugboats guide barges loaded with $1 million worth of product, so engine reliability is critical. Cat® Dealer Gregory Poole’s maintenance plan has kept them running without a failure for nearly 10 years.
Learn MoreWith Cat® Engines powering his boat—and technical support from Cat dealer MATCO and Caterpillar marine experts—Dan Lewis reeled in a big prize at the 2014 Bisbee’s Black & Blue Marlin Tournament.
Learn MoreCat® Retrofit kits allow new or updated parts to be fitted to older Cat machines and engines, to reduce emissions and create new efficiencies, all while being cost effective.
Learn MoreAfter turning to MaK Asia for an overhaul of its 8 M43 C engine, a Chinese shipping company is able to increase vessel speed and deliveries significantly—enough to pay for the repair in just one month.
Learn MoreCaterpillar’s solution to address the latest Tier 4 emission standards began with a sketch. See how the team went from concept to reality to help reduce emissions & operating costs.
Learn MoreCharter fishing isn’t Steve Sohlstrom’s day job, but it is his passion. See how his boat, now repowered with Cat® C7.1 engines, puts guests’ enjoyment first.
Learn MoreCheck in with one of our design engineers as he explains how customers can improve performance and reduce emissions from their engine with upgrades available from Caterpillar.
Learn MoreThe more things change, the more they stay the same. The stories from this 1965 commercial fishing brochure prove Cat® reliability and dealer support stand the test of time.
Learn MoreStep back in Caterpillar history seven decades to discover what 1940s-era commercial fishing operations found important. It’ll likely ring a bell to those in the industry today.
Learn MoreHis previous four yachts were powered by another brand of engine, but Gaston le Cam chose Cat C8.7 engines for his newest vessel, LISCORNO, and couldn’t be happier with the results.
Learn MoreThen and now, dependability matters. These stories from a 1968 Caterpillar commercial fishing brochure should sound familiar — they’re all about the reliability of Cat® marine power.
Learn MoreLike many great ideas, Caterpillar’s solution to address the latest marine emissions Tier 4 standards started with a simple pencil sketch. Now that design is helping customers reduce emissions and operating costs.
Learn MoreThe Cat dealer network went to great lengths to keep a Niagara Falls jet boat company operating on one of summer’s busiest weekends, taking just 52 hours to get a replacement engine from warehouse to water.
Learn MoreTo convert its vessel Coral Anthelia to dual fuel operation, Anthony Veder worked with Cat® dealer Bolier to complete the industry’s first in-hull retrofit—saving considerable time and money in the process.
Learn MoreThe Cat 3500 engine series is already one of the most proven engine systems in the world, and it’s getting better with the shift to U.S. EPA Tier 4 Final emission standards. The 3516E model, specifically, is designed for marine operations and offers the best PM and NOx reduction technology, in the form of an improved SCR system. Along with SCR comes an impressive collection of features and options that can be tailored to any marine operation, as well as compliance with essential safety regulations.
Learn MoreThe relationship between SAAM Towage, the largest tug operator in the Americas, and Caterpillar is one built on trust - trust in the product, the support and a mutually beneficial partnership.
Learn MoreWith only three crew members, the tugboat Peter helps to ensure that over 100 million tons of seaborne cargo reaches its destination safely each year.
Learn MoreFind out more about a Caterpillar powered tug boat in the port of Hamburg.
Learn MoreWith proven technologies like Cat 3618 legacy engines, Caterpillar provides value to its marine customers through high-performing solutions that keep marine vessels working and productive.
Learn MoreCaterpillar Inside Sales Representatives provide value by becoming a trusted advocate for small marine customers and the engines they rely on, in delivering consistent, timely service and repairs no matter where a vessel is located.
Learn MoreInvesting in your equipment is as vital as investing in your crew. After all, how much is an inland river towboat captain’s trust in his ship really worth?
Learn MoreHurricane Harvey may have destroyed Elite Diesel Service’s shop, but it couldn’t stop the authorized Cat® marine dealer from working to keep its customers and employees afloat.
Learn MoreCaptain Josh Temple of Primetime Adventures is on course to shatter the world record for most marlins tagged in a year – thanks to the Cat® marine engines and generator set powering his vessel, the Carol Libby.
Learn MoreQuality products and dealer service were key reasons Aker Philadelphia Shipyard spec’d MaK™ gen sets in its oil tankers—but a 20-year-plus relationship with Cat Financial ultimately sealed the deal.
Learn MoreConverting from an aging steam turbine and boiler to new, highly efficient MaK engines will give 56-year-old Great Lakes cargo ship Herbert C. Jackson a new lease on life.
Learn MoreWith technologies such as the Cat Marine Hybrid Thruster system, Caterpillar provides value to its marine customers that reduce fuel costs while making ship systems less complex.
Learn MoreWith technologies such as the Cat C7.1 Marine Propulsion Engine, Caterpillar provides value to its marine customers with high-performing solutions that reduce both fuel costs and maintenance.
Learn MoreCaterpillar delivers engines and related marine services, products, parts and support for customers around the world.
Learn MoreIt’s a common misconception that all U.S. EPA Tier 4 Final well service engines require Diesel Exhaust Fluid, or urea. But Cat® engines rated above 750hp don’t. Here’s why.
Learn More4 Reasons To Power Your Yacht With Pod Technology
Learn MoreA Century On The Water. Four Decades With Caterpillar
Learn MoreAdding Extended Service Coverage Is a “No-Nonsense” Decision for Louisiana Marine Company
Learn MoreAustralian Cat® Dealers Support Customer with Ground-Breaking Research
Learn MoreBlueprint for Fishing
Learn MoreCalculate Total Lifecycle Costs with the new Caterpillar Marine Engine Value Analysis
Learn MoreCaptain Josh Temple of Primetime Adventures is on course to shatter the world record for most marlins tagged in a year – thanks to the Cat® marine engines and generator set powering his vessel, the Carol Libby.
Learn MoreCaptain Shares Why He Loves the New C7.1 Engines
Learn MoreCat Concierge Serves as “Safe Haven” for Luxury Yacht Experiencing Engine Trouble
Learn MoreCaterpillar provides value to its marine customers with offerings including Bundled Repair Solutions, Extended Service Coverage, reman parts and more.
Learn MoreCaterpillar Marine and MaK deliver dependable power for Arctic operations
Learn MoreCat® Concierge Service Helps Keep Luxury Yacht’s Charter Business Afloat
Learn MoreCat® Dealer Maintenance Plan Keeps Tugs Running Failure-Free for Nearly a Decade
Learn MoreCat® Engines & Dealer Service Help Power Sport Fisherman to $1.682M Prize
Learn MoreCat® Retrofit Kits
Learn MoreChinese Shipping Company Turns to MaK™ Asia & Expects to Recoup Overhaul Costs in Just One Month
Learn MoreEmissions and Performance Upgrades
Learn MoreFish Boats need reliable power
Learn MoreFishing is their Business
Learn MoreFive-Time Yacht Owner Becomes a First-Time Cat Customer with Excellent Results
Learn MoreFor The Long Haul
Learn MoreFrom Warehouse to Water in Just 52 Hours
Learn MoreGas Shipping Customer Saves Time & Money with Industry’s First In-Hull Dual Fuel Engine Conversion
Learn MoreGo Behind the Iron: Details on the New 3516E Tier 4 Final Engine
Learn MoreHamburg Tug Life
Learn MoreHigh-performance Cat 3618 Legacy Engines
Learn MoreCaterpillar Inside Sales Representatives provide value by becoming a trusted advocate for small marine customers and the engines they rely on, in delivering consistent, timely service and repairs no matter where a vessel is located.
Learn MoreInvesting In Your Equipment
Learn MoreKeeping Boats — And A Business — Afloat In The Wake Of Harvey
Learn MoreLisa K - with her Cat Three60 Precision Control - can be easily and deftly maneuvered.
Learn MoreMaK™ Repower Gives Great Lakes Steamship a New Lease on Life
Learn MoreWith technologies such as the Cat Marine Hybrid Thruster system, Caterpillar provides value to its marine customers that reduce fuel costs while making ship systems less complex.
Learn MoreMarine Propulsion Engines
Learn MoreMarine Services And Products Survey
Learn MoreNearly Seven Decades Later, Original Cat® Engine Keeps Tugging Along
Learn MoreNew Cat® Displays Enable Yacht Captain to See More, Do More
Learn MoreNext-Gen Displays Meet First-Gen Engines On Sport-Fishing Boat
Learn MoreOld-Time Tall Ship Sets Sail with Modern-Day Cat® Power
Learn MorePower Profile: A Decade of Technological Progress
Learn MorePower Profile: C32 Acerttm for German Severe Duty Search and Rescue Vessels
Learn MorePower Profile: Essayons - US Army Corps of Engineers
Learn MoreSmart design on new Cat displays
Learn MoreStories from the Sea
Learn MoreS·O·S Services Fluid Analysis
Learn MoreThe 1-2-3 of SCR
Learn MoreThe Dependables
Learn MoreThe Power At The Wheel
Learn MoreVessel Still Powered by Original 30-Year-Old Cat® Engines
Learn MoreWorld’s Quietest Ships Powered by MaK Engines
Learn MoreIt was during a visit to Robert Allan Ltd. that Caterpillar engineers sketched an idea that became the first-to-market marine Tier 4 Final engine. The naval architect’s input was critical in developing a solution that worked for tugboats.
Learn MoreAd Schroot’s 1947 tugboat has had six owners over the course of nearly seven decades, but only one engine. A bit of annual preventive maintenance is all it takes to keep the original Cat® D8800 running.
Learn MoreAs he transports guests to New England, the Bahamas, the Florida Keys and even Cuba, Reflections yacht Captain Zack Ring says new Cat® Marine Displays give him the freedom to see more and do more.
Learn MoreNew Cat Marine Displays were a perfect solution for the sport-fishing boat Coyote — easy to see, easy to use and easy to install, thanks to a kit that lets the new displays to communicate with older engines.
Learn MoreA sail-training vessel that carries only students and professional crew, Oliver Hazard Perry is an old-time tall ship filled with modern technology, including Cat® Engines.
Learn MoreCaptain Josh Temple of Primetime Adventures is on course to shatter the world record for most marlins tagged in a year – thanks to the Cat® marine engines and generator set powering his vessel, the Carol Libby.
Learn MoreCaptain Josh Temple of Primetime Adventures is on course to shatter the world record for most marlins tagged in a year – thanks to the Cat® marine engines and generator set powering his vessel, the Carol Libby.
Learn MoreCaptain Josh Temple of Primetime Adventures is on course to shatter the world record for most marlins tagged in a year – thanks to the Cat® marine engines and generator set powering his vessel, the Carol Libby.
Learn MoreCat marine displays are already respected for their intuitive touchscreen interface - design, their crystal clear optics and their impressive durability, but they are about to get even better.
Learn MoreEngaging customer stories from the sea – journey with us around the globe to meet dedicated people, visit exciting places, and board extraordinary vessels.
Learn MoreEngaging customer stories from the sea – journey with us around the globe to meet dedicated people, visit exciting places, and board extraordinary vessels.
Learn MoreCat S·O·S Services Fluid Analysis helps companies reduce their expenses by offering advanced fluid analysis testing around the world that can diagnose equipment problems before they cause a failure.
Learn MoreLearn more about the marine-specific solution designed by Caterpillar includes Selective Catalytic Reduction (SCR) technology to meet Tier 4 Final emission standards with few or no changes from the Tier 4 Interim solution.
Learn MoreWhat do commercial fishing operations of 1967 and today have in common? Take a look back into Caterpillar’s fishing history to find out. (Hint: The key word is “dependability.”)
Learn MoreA 1959 Cat® marine sales piece kicked off with a letter from a very satisfied commercial fishing customer—one whose engine emerged from the water following a hurricane running like a champ.
Learn MoreThanks to a special mounting design that isolates its MaK generator sets from the engines room floor, Chinese ocean research vessel DONGFANGHONG 3 will conduct its explorations in almost total silence.
Learn More