Diesel outboard solutions for commercial maritime operations
Safer, cleaner and more efficient diesel outboards for professional operations.
Engineered for professional performance
From offshore platforms to ferry routes and aquaculture, Cox Marine diesel outboards are powering essential operations throughout the world. Built to withstand harsh marine environments, our engines provide the durability, safety, and fuel efficiency that professional operators depend on.
The Cox Marine V8 diesel outboard is designed to directly replace petrol outboards – without the associated volatility, emissions, or inefficiencies. Whether you’re managing a passenger transfer service, supporting port operations, or operating fisheries, Cox Marine delivers the power and confidence you need.
The commercial benefits of diesel
Built for commercial use
The Cox Marine V8 diesel outboard is the most powerful of its kind, producing up to 1,052 Nm of torque and a maximum output of 350 hp. It meets international environmental standards, including IMO II, RCD II and EPA Tier 3.
Extended range and lower fuel consumption
With better fuel efficiency than petrol engines, Cox Marine outboards allow vessels to travel longer distances and operate for extended periods without refuelling. Ideal for coastal ferries, survey vessels and commercial fishing trips.
Built for uptime
Robust engineering, extended service intervals and simplified maintenance help minimise downtime and reduce total cost of ownership – an essential factor for busy commercial operators across the world.
Trusted across sectors
Cox Marine diesel outboards are already in use across a range of sectors:

Oil & gas
Safer propulsion for support vessels, spill response and crew transfers in offshore environments.

Passenger & Tourism
Reliable and efficient transport solutions for water taxis, inter-island ferries and shuttle services.

Maritime & Crew Transfer
Port authorities, pilot boats and harbour craft benefit from high torque, efficiency and durability.

Fishing & aquaculture
High torque at low RPM supports commercial fishing and aquaculture activities across European waters.
Designed for the real world
Enhanced safety
In offshore energy zones and other hazardous areas, petrol outboards present a potential ignition hazard. Our diesel engines use compression ignition, significantly reducing this risk and making them a safer choice for regulated environments.
Supports your local market
With increasing demand for diesel outboards in globally, Cox Marine offers products tailored to regional regulations and operator needs, backed by market-specific expertise.
Backed by a global network
Our service and support network spans over 175 territories worldwide, ensuring that Cox Marine customers across Europe benefit from reliable, localised technical assistance.

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