Cox Marine

With the COX – CXO300 Diesel outboard COX haven’t just ripped up the rule book they have completely changed the game.


Cox Powertrain is a privately owned, British company based in Shoreham, UK, founded in 2007.
Cox Powertrain has accomplished a lot over the past decade, from seeing a gap in the market for compact sized diesel engine solutions, through to successfully being recognised as a renowned OEM. Backed by an incredible amount of private investment of circa £100 million, Cox Powertrain were able to bring the concept of a high powered 300hp V8 diesel outboard engine to the market.

Designed from a blank sheet of paper, specifically for commercial and recreational use, the CXO300 is set to disrupt the marine market, offering a new and exciting option for maritime users. Although unique in design, the CXO300 has been built for purpose and developed according to industry standards making it compatible with controls (NMEA 2000), propellers (1 & ¼ prop shaft), transom bolt pattern and current steering systems.

The CXO300 provides the convenience and flexibility of an outboard, but the power and efficiency of an inboard.

The commercially rated diesel outboard is not only a new, innovative product but it also promises up to 30% better fuel efficiency, 650Nm of Torque, three times longer life and is the first outboard engine to have a Power Distribution Module.

Cox have begun to set a new benchmark for servicing in the marine industry. To do this, Cox have built a global network, partnering with existing, well established marine engine dealers. And with a 24/7 customer support plan in place, Cox are making strides in the right direction in achieving unrivalled customer support for their global customer network.

Alongside the 24/7 customer support network, Cox has developed an online Customer Portal in which Cox customers can access knowledge articles, request assistance or book services. Cox’s global support network are scheduled and dispatched using a Field Service tool, which allows Cox operators to be regularly updated on the progression of their service or assistance request. The Cox Field Service tool also allows Cox’s highly trained technicians access to technical documentation to complete any technical or maintenance appointments efficiently and easily, reducing downtime for operators.