Diesel outboard solutions for commercial maritime operations

Safer, cleaner and more efficient diesel outboards for professional operations.

Engineered for professional performance

From offshore energy and tourism to port operations and passenger ferries, Cox Marine diesel outboards are powering vital marine activity. Built for the harshest conditions and the highest standards, our outboards deliver the reliability, safety, and fuel economy commercial operators demand.

The Cox Marine V8 diesel outboard has been designed to offer a direct replacement for gasoline engines with none of the safety concerns or inefficiencies.

Whether you’re transferring crew to offshore oil rigs, running a ferry service in the Caribbean, or managing tourism along the US coasts, Cox Marine delivers the power and support you need.

Commercial

The commercial advantage of diesel

Safety first

In oil and gas zones and other hazardous environments, gasoline outboards pose an ignition risk. Our compression-ignition diesel outboards eliminate this risk, making them the preferred choice for high-risk applications.

Longer operating range

With greater fuel efficiency than gasoline alternatives, Cox Marine outboards let you travel further and operate longer – ideal for tourism boats, spill response vessels, and long-haul fishing trips along extensive US waterways.

Low maintenance, high uptime

With extended service intervals and robust engineering, the V8 is designed to reduce downtime and lower total operating costs – a crucial factor for busy fleets operating from the Gulf to the Pacific Northwest.

Trusted across sectors

Cox Marine diesel outboards are already in use across a range of sectors:

Designed for demanding conditions

Built for commercial use

The V8 is the most powerful diesel outboard on the market, delivering up to 1,052 Nm of torque and up to 350 hp. It’s also certified to the latest environmental standards, including IMO II, RCD II, and EPA Tier 3.

Supports your local market

With diesel outboard demand rising in the US, our commercial focus ensures tailored support, market readiness, and regional expertise.

Backed by a global network

With service centers and technical partners across more than 175 territories, Cox Marine offers responsive support wherever you operate.