RELIABLE MARINE POWER STARTS HERE
Find a full range of propulsion engines, auxiliary engines, and marine generator sets from the authorized Cat marine dealer serving San Diego, Hawaii, and the Pacific, since 1956.
Hawthorne Marine Power offers the complete Cat marine lineup, backed by certified technicians and expertise across all vessel types and applications.
Marine Industries We Serve
Fishing
Hawthorne Marine Power’s product support team has been proudly supporting commercial fishing fleets from San Diego to the South Pacific almost since our inception. With our well-established air or ocean logistics options and an unmatched sense of urgency, utilizing Hawthorne’s decades of experience will get you back onto fishing fast.
Whether you are overhauling a tried-and-true mechanical Cat D353, or performing a troubleshoot using Cat Electronic Technician (Cat ET) on one of our 3500 series engines, Hawthorne Marine Power stocks the parts vital to your operation. Our goal is to help you minimize your downtime and get back to generating revenue. It all starts with having dedicated parts personnel with an in-depth knowledge of the commercial fishing industry. Furthermore, we stock new and Cat remanufactured water pumps, cylinder heads, cylinder packs, fuel injectors, fuel transfer pumps, turbo cartridges, gasket kits and so many more parts commonly used on today’s fishing vessels and skiffs.
We know that managing your maintenance costs is a critical component of your commercial fishing operation. This is why we also offer Cat remanufactured parts. Carrying the same one-year part warranty as new parts, Cat remanufactured parts maintain the same high level of quality and dependability you have come to expect from Cat replacement parts at an overall reduced cost. Cat remanufactured parts give you some welcomed financial flexibility when you need it.
If you are the port engineer responsible for keeping your fleet fishing, you have a lot to manage. Hawthorne Marine Power wants to partner with you, so your parts procurement is one less thing for you to worry about. From San Diego to Saipan, we have got you covered!
Have a good rebuildable core and in the market for a swing engine? Let Hawthorne Marine Power veteran service team build one up for you. Or, perhaps you have an engine with high hours in need of an overhaul? Nothing gives you the confidence of knowing that your Cat engine was overhauled by factory-trained technicians, using factory-certified parts done the right way, with no shortcuts. We cap it all off with post-overhaul break-in testing and tuning at our in-house Dyno facility. Your engine will be run-in and ready to be put back into service upon arrival.
Ask your Hawthorne Marine Product Support Sales Representative for more details.
Commercial & Research
Whether you run a fleet of tugs, several whale watch vessels, or a university research vessel, Hawthorne Marine Power's product support team has the repair options you need to maximize your up time. Hawthorne’s service department specializes in global mobility and provides top notch service wherever you need us, across town or across the ocean.
Hawthorne Marine Power provides a wide breadth of services to keep your operation on the move. From regular SOS Fluid sampling to track predictive trends or analyzing the overall health of your shipboard electric power utilizing our Advanced Electrical Services, and planned or emergent repairs like Major, In-Frame, or Top-End overhauls. You can depend on Hawthorne Marine Power product support team to be where you need us, when you need us there.
If you are the individual responsible for keeping your vessel or your fleet up and running, you have a lot to manage. Hawthorne Marine Power wants to partner with you, so your parts and service procurement is one less thing for you to worry about. With our well-established air or ocean logistics options and an unmatched sense of urgency, utilizing Hawthorne’s decades of experience in the commercial and research vessel space is a sure way to minimize your downtime and maximize your up time. If you find yourself in San Diego, we are fully staffed with highly trained mobile field service technicians who are extensively trained in all Cat Marine engine families. We maintain a fleet of service trucks equipped with repair and diagnostic tools that can help get your engine up running quickly.
Be sure to ask how enrolling in our Customer Value Agreement (CVA) can be an essential part of your fleet management toolbox. Keeping your vessel running is the key to your success. With CVAs, you have individualized solutions, ranging from traditional parts and services to connected technologies and more.
Ask your Hawthorne Marine Product Support Sales Representative for more details.
Government & Defense
Here in San Diego or around the globe, adeptly supporting our nation’s fleet of military vessels is a great source of pride for Hawthorne Marine Power's product support team. We have the latest, most up-to-date technical expertise, tooling, and proven logistics capabilities to mobilize our operational force and provide an unparalleled level of service to the U.S. Government and Defense Contractors alike.
When Hawthorne Marine Power technicians are onboard your vessel, they each bring with them decades of Cat product support knowledge. Whether we are performing SMART Testing of your 3516B Emergency Diesel Generator or replacing a crankshaft as part of a major overhaul of your 3608 Ship’s Service Diesel Generator, there is no substitute for the experience our Hawthorne Marine Power service team brings to the table.
Under the North American Industry Classification system, Hawthorne Marine Power are classified under the following NAICS codes:
221114: Solar Electric Power Generation
332912: Fluid Power Valve and Hose Fitting Manufacturing
335311: Power, Distribution, and Specialty Transformer Manufacturing
336611: Ship Building and Repairing
423120: Motor Vehicle Supply and New Parts Merchant Wholesalers
423610: Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
423810: Construction and Mining Machinery and Equipment Merchant Wholesalers
484220: Specialized Freight
532412: Construction, Mining, and Forestry Machinery and Equipment Rental Leasing
541330: Engineering Services
811310: Commercial and Industrial Machinery and Equipment Repair and Maintenance.
We are also recognized by the American Bureau Shipping as an authorized Cat OEM Parts and Service Provider.
While we are well known for our breadth of knowledge of Caterpillar engines, what you may not know is that Hawthorne Marine Power is your source for Advanced Electrical Services. These services include, but are not limited to:
- Infrared Thermography for power distribution system
- Circuit Breaker Testing for primary or secondary injection
- Circuit Breaker Cleaning
- Generator Insulation Testing (Megger)
- Load testing… and more!
Ask your Hawthorne Marine Product Support Sales Representative for more details.
Yachts & Mega Yachts
As a yacht owner, you have discerning tastes when it comes to the fit and finish of your yacht’s exterior and interior details alike. Your engine room and Cat running gear should be no different. The team at Hawthorne Marine Power has a unique understanding of the wants and needs of the mega yacht owner and the engineering crews who run them.
Wherever the following seas may take you, Hawthorne Marine Power can be there to insure reliability and uninterrupted performance of your Cat propulsion engines, marine gensets, and onboard controls.
Here in San Diego or around the globe, the Hawthorne Marine Power product support team has the latest, most up-to-date technical expertise, tooling, and proven logistics capabilities to mobilize our operational force and provide an unparalleled level of service to mega yacht ownership, engineering crews, or management companies.
When Hawthorne technicians are onboard your vessel, they each bring with them decades of Cat product support knowledge. Whether we are performing a valve adjust on your Cat C9 EDG, top end overhauls on your Cat C18 SSDGs, or in-frame overhauls of your Cat 3516 propulsion engines, there is no substitute for the experience our service team brings to the table.
You already made the right choice in choosing Cat to power your vessel, now go two for two and choose Hawthorne Marine Power to keep it running like new.
While we are well known for our breadth of knowledge of Cat engines, what you may not know is that Hawthorne Marine Services is your source for Advanced Electrical Services too! These services include, but are not limited to:
- Infra-Red Thermography for all your power distribution systems
- Circuit Breaker Testing
- Circuit Breaker Cleaning
- Generator Insulation Testing (Megger)
- Load testing… and more!
Be sure to ask how enrolling in a Customer Value Agreement (CVA) & Extended Service Coverage (ESC) can be an essential part of your yacht management toolbox.
Ask your Hawthorne Marine Product Support Sales Representative for more details.
Learn about our Governmental & Defense Solutions, especially dedicated to the most demanding naval and defense applications around the globe.
Our commitment to exceptional service
Interested in a Service?
As your authorized Cat Marine Engine Dealer for service and boat engine repair, we offer the following services at our San Diego and Hawaii locations, our on-the-water dock, or through our fleet of mobile field service technicians:
- Advanced Electrical Services
- Advanced Marine Diagnostics
- Advanced Mechanical Repairs
- Customer Value Agreement (CVA) Options
- Emission Specialists
- Engine Retrofit and Repowers
- Engine Surveys
- Engine Test Facility (Dyno)
- Factory-Trained Marine Technicians
- Fully Equipped Field Service Trucks
- Marine Engine Rebuilds and Repairs
- Marine Fabrication/Welding (guards, mounts, etc.)
- Performance Analysis Reviews
- Preventative Maintenance
- Professional Technical Communicators
- Sea Trials
- Technician Wireless Dispatch
- Worldwide support (backed by the Cat dealer network)
Our commitment to exceptional service
Marine Service Agreements
Comprehensive parts, service, and connected technology solutions built around your vessel’s lifecycle. Whatever CVA you choose, Hawthorne Marine Power keeps you on the water.

HASSLE-FREE OWNERSHIP
Caterpillar and your Cat® dealer are dedicated to ensuring you get the most from your equipment with outstanding service and support.

HASSLE-FREE MAINTENANCE
CVAs unlock maintenance efficiencies by delivering genuine Cat® parts on time and offering flexible services that perfectly match your engine maintenance needs.

Confidence in Your Machine
Whether you're running one vessel or an entire fleet, Caterpillar has the technologies you need to get timely, accurate data from engines.

Expert Dealer Support
CVA offers resources for maintenance planning, repairs, rebuilds, upgrades, diagnostic and troubleshooting support, expert dealer advice, and training.
What's included in a CVA?
Marine Power Keeping your vessel running is key to your success. Cat Customer Value Agreements give you access to custom solutions, ranging from traditional parts and services to connected technologies and more. Choose from 3 levels of CVAs for marine power and minimize your operating costs. With total equipment care, we monitor your systems to drive your business forward.
Marine Service and Support
Since 1956, we’ve been proud to offer industry-leading marine engines with engineering expertise and the parts and service solutions to get our marine customers there and back.
Our engineering team can help you find the best new or repowered engine for your vessel and assist you with understanding the latest emissions regulations.
You can count on our experienced service team for comprehensive Performance Analysis Reviews (PAR), engine sea trials, engine inspections, repowers and transmission repairs.
The expert service and support from Hawthorne’s Marine Engine Team is an important part of our company-wide commitment to doing what it takes to keep you working. It’s what we call The Hawthorne Edge.
Get the Marine Power Solutions Guide
Cat Marine’s Power Solutions Selections Guide is your go-to for all things marine power. The annual publication includes Cat, MaK, and EMD products renowned not only for their reliability, durability, and efficiency, but also for their design and innovation.
Current product offerings in the Marine Power Solutions Guide include:
- Diesel and dual fuel engines as propulsion and auxiliary engines
- Complete generator sets
- Aftertreatment solutions
- Complete fuel gas handling systems
- Complete integrated vessel monitoring, safety and control systems
- Total vessel analytics solutions to further increase uptime & efficiency
At Hawthorne Marine Power, our mission is to be a total provider of advanced marine power systems and services with the highest uptime and lowest cost of ownership.