Cox Marine Diesel Outboards, the only diesel outboard engines built for marine purposes.
Why does this matter? Imagine taking an automotive block, turning it on its side, and using it to power a marine vessel. You can imagine the host of problems that would cause. But the Cox diesel outboard is the only outboard built specifically for marine applications, meaning the engine was designed by Cox, from the ground up, to power marine vessels. Not only does this make it more efficient and reliable, but it also makes servicing the engine much easier. In other words, this engine is tailored to meet the unique requirements and challenges of powering boats and watercraft.
Some key points:
Vertical Crankshaft Design: The use of a vertical crankshaft is a notable feature. This design choice can contribute to better fuel efficiency and performance in a marine setting. It might also have advantages in engine balance and weight distribution.
Fuel Efficiency: The Cox diesel outboard engine offers 30 percent better fuel efficiency compared to a 300-hp gasoline outboard. This is a significant improvement in fuel consumption, which can translate into cost savings and reduced environmental impact.
Extended Service Life: Another important aspect is the longer service life which is three times greater than the average outboard. This can be a substantial benefit for boat owners, as it reduces the frequency of maintenance, repairs, and engine replacement, further contributing to cost savings.
Total Cost of Ownership (TCO) Savings: The combination of better fuel efficiency and an extended service life leads to exceptional total cost of ownership savings. TCO includes not only the initial purchase price but also operating costs over the life span of the engine. By reducing fuel consumption and maintenance needs, Cox Marine’s diesel outboard engine aims to provide boat owners with a more cost-effective solution in the long run.
The vision of the Cox Marine diesel outboard began in 1966, when Charles Good was 20 years old aboard his mom’s wooden sailboard, anchored off Greece’s Ionian Island. He was decanting gasoline into a small container when he spilled fuel on the deck of the boat and the gasoline erupted into flames after it contacted a nearby gas-powered refrigerator. This left Good with the lasting impression that there must be a way to develop an outboard engine using diesel fuel, which is significantly less flammable than gasoline.
Fast-forward to 2008, when a project that David Cox was working on hit Good’s desk. Good took the plans to the engineering firm of Ricardo PLC, who are intrigued with the safety and fuel efficiency of the diesel outboard engine. Their intrigue was enough to commit Good and his investor group to financially back the development of Cox’s diesel into the powerhead of an outboard engine.
In 2010, Cox Marine started to deliver a revolutionary new concept, an outboard that would be the first stop on the journey to power the future of the global marine industry through sustainable innovation. Since then, with the help of private investment, Cox Marine has brought a dream to reality with the delivery of the V8 family that began with the 300-horsepower engine in 2022 followed by the release of the 350-horse powered engine in 2024.
Cox Marine introduced the world’s first and only 350 hp diesel outboard at the Miami Boat show in February of 2024. Not only does the 350-offer additional horsepower, but the increased torque of 1052 Nm (776 ft-lb) gives you the power to embark on longer adventures and cruise with confidence. With the COX Marine diesel engine, you can spend more time enjoying the water and less time worrying about refueling.
About Us
Ring Power Corporation is headquartered in St. Augustine, FL, and is the Cox Marine diesel outboard distributor for the sales territory of the East Coast, Northeast, Great Lakes Caribbean, and Bermuda. Ring Power comprises eight divisions and has more than 60 years of experience servicing and supporting Cat® products and allied equipment. Ring Power strives to safely deliver superior solutions to our customers, personal growth and rewarding careers to our employees, and world-class representation of our suppliers’ products.
The Ring Power Story
On the Waterfront
It's ironic that a company whose growth, opportunities, achievements and reputation arose on land actually got its start on the water.
In 1947 L.C. Ringhaver, or "Ring," as he liked to be called, left Cleveland, Ohio for St. Augustine, Florida. The 36-year-old accountant had been tasked with finding a way to dramatically increase production at a modest shrimp boat industry that was suddenly awash in post-war demand.
Once Ring took charge of DESCO, production jumped quickly. Convinced that assembly- line production would turn out better boats at less cost to the buyer, Ring implemented manufacturing techniques he picked up during his previous time with GM's Cleveland Diesel. Within a decade, the company was launching two shrimp trawlers every week. The company's payroll jumped as well, from 35 to 200. By 1952 DESCO was the world's largest builder of shrimp trawlers. Ring purchased Desco from GM along with business partner James Melton. Five years later, Ring became the company's sole owner.
Ring's ownership gave the company more freedom to appraise - and purchase - diesel engines built by other manufactures. After years of carefully observing top marine engine producers, Ring drew conclusions that repeatedly led to his recommendation of engines built by Caterpillar Tractor Company. By the late 1950's, DESCO had become Florida's single largest Caterpillar engine customer.
In 1961, Ring Power Corporation was born when Caterpillar chose Ring as its official engine dealer. Just a year later the president of Lobrano Machinery Company passed away. Lobrano had been the Caterpillar dealer principal for North Florida, and his passing left Caterpillar in need of a new earthmoving equipment dealer in North Florida.
Ring Power Corporation Appointed Full-Line Caterpillar Dealer
There were no shortage of candidates, but in the end Caterpillar determined L.C. Ringhaver was the best candidate and awarded Ring Power Corporation the appointment as a full- line Caterpillar dealer in 1962.
Ring Power Corporation grew extensively under Ring's leadership, adding divisions and building new facilities in Jacksonville, Ocala and Tallahassee.
Changing of the Guard
In 1976 L.C. Ringhaver passed away, leaving uncertainty in the business community as to Ring Power's future. Although L.C. Ringhaver's sons, Lance and Randy had grown up working for Ring Power and learning every facet of the family business, Lance was just 36; Randy, only 28. Customarily Caterpillar did not appoint dealer principals in their twenties or thirties. But Caterpillar renewed the dealer agreement, affirming their confidence in Ring Power's current management.
Due to Ring's health complications, Lance Ringhaver had already been appointed company president in 1976, with Ring assuming a supervisory role as chairman. Lance's promotion came after four years of experience serving as Executive Vice President and General Manager. Also by 1976, Randy was serving as Vice President and Secretary - revolutionizing the Cat business model status quo and building a new foundation for subsequent success in the used equipment sales, international sales and equipment rental business.
Tampa Bound
In 1986, Rozier Machinery Company, held jointly by three sisters, decided to exit the Caterpillar business. The decision left Caterpillar with a decision of its own: who to appoint to serve the Central Florida territory. After weeks of negotiations and an impressive presentation Lance Ringhaver got the call that Caterpillar had chosen Ring Power Corporation to become its Central Florida Dealer. Caterpillar insisted that a new company was formed to serve the new territory, thus Ringhaver Equipment Company of Tampa was formed under the RPC, Inc. umbrella.
Lance decided to make the move to Tampa to establish Ringhaver Equipment Company, leaving Randy with the new authority of President and General Manager of Ring Power Corporation. Ringhaver Equipment Company's agreement with Caterpillar officially began September 1, 1986. Ringhaver Equipment Company was able to accomplish in three years what others had done in thirty, establishing one of the quickest growing Caterpillar dealerships in the country.
One Company. One Vision.
The turn of the century heralded big changes for Ringhaver Equipment Company and Ring Power Corporation. After 14 years of operating separately, health issues precipitated plans for Lance's retirement.
In 2004, Ringhaver Equipment Company and Ring Power Corporation officially merged into one consolidated company with Randy Ringhaver as Chairman and President of the new Ring Power Corporation. The combined Cat dealership territory now consists of 44 counties throughout North and Central Florida.
Coming Full Circle
In 2005 Ring Power moved into its new corporate headquarters in St. Augustine, just a dozen miles or so from where L.C. Ringhaver started it all in 1947. Today, Ring Power Corporate headquarters in St. Augustine oversees the operations of 18 branch locations throughout the state of Florida, including large regional facilities in Tampa and Orlando. A Pompano Beach branch supports air compressor, crane, and utility customers in South Florida. Ring Power also has facilities outside of Florida – the Carolinas, Tennessee, Georgia, and Texas – to serve the needs of other specialized industries and customers.
In 2019, David Alban was appointed President and assumed day-to-day leadership of the company. Randy Ringhaver remains Chairman and Chief Executive Officer.
Join Us on Our Journey
We invite you to join us on our journey to revolutionize marine propulsion. Whether you are a boater, a dealer, or a government agency, Cox Marine has the expertise and technology to meet your needs. Explore our products, learn about our innovations, and discover how we can help you achieve your marine propulsion goals.
Contact Us
For more information about Cox Marine, our products, or to become a partner, please get in touch with us. We look forward to hearing from you and working together to shape the future of marine propulsion.