Designed with sustainable innovation in mind, the CXO300 is a fuel efficient, eco-friendly diesel outboard engine designed for maximum speed. Explore the careful engineering and flawless details our designers put into this powerful outboard motor.

High torque at low RPM

Designed for commercial and recreational use, the CXO300 is a new generation of diesel marine technology, offering a high-powered diesel outboard to the marine market. Delivering 479 lb.ft torque at 2250-3000 revolutions per minute, the CXO300 allows your vessel to move through the water in a much more controlled and smooth manner, whilst also meeting the demands for a high performing outboard engine and ensuring safety and convenience at the same time.

Exceptional fuel savings

With up to 30% better fuel efficiency compared to a 300hp gasoline outboard, and with a service life that is three times your average outboard, the CXO300 not only provides unique fuel savings, but it also provides exceptional total cost of ownership savings.

Please note that data may differ depending on variables such as vessel and sea conditions. For further information, please visit our Performance page.

Service & support at your fingertips

Introducing the new generation of mobile boating technology, the Coxswain™ app. This powerful new engine management application enables Cox customers to access aftersales support for their Cox diesel outboards, at the touch of a button.

Receive service appointment reminders, request assistance at the push of a button, and access owner’s documentation. Also available on desktop, the Coxswain app allows our customers to access everything they need to know about their Cox powered vessels, 24/7.

Discover the the Coxswain™ app here

Perfect for a Range of Applications

FISHING​

The fuel efficiency of the CXO300 provides you with longer range for your fishing trips, helping you find those extra special fishing spots to get your catch-of-the-day.

PASSENGER BOATS​

The CXO300 offers a service life that is three times that of a gasoline equivalent, therefore reducing your vessel’s downtime and ensuring your business can run as usual, for longer periods of time.

FIRE, RESCUE & COAST GUARD​

This high-performance, V8 diesel outboard quickly reaches its top speed of 4000RPM, getting you to where you need to be, swiftly and efficiently.

WORKBOATS​

The commercially rated CXO300 has been designed and built for purpose to support your commercial operations. Our comprehensive global support network is there for you 24/7 to ensure downtime is kept to a minimum.

PILOT BOATS​

The CXO300 produces 20-35% less CO2 than comparable gasoline products, making those trips back and forth on Pilot boats less harmful to the natural environment, whilst also reducing your carbon footprint.

ENERGY​

Having received EPA Tier 3, RCD II and IMO Tier II certification of approval, the CXO300 is one of the most environmentally friendly diesel outboard options available to assist in energy and environmental jobs out at sea.

cox-fishing-boat-768x432

FISHING

The fuel efficiency of the CXO300 provides you with longer range for your fishing trips, helping you find those extra special fishing spots to get your catch-of-the-day.

cox-passenger-boat

PASSENGER BOATS

The CXO300 offers a service life that is three times that of a gasoline equivalent, therefore reducing your vessel’s downtime and ensuring your business can run as usual, for longer periods of time.
Fire-_-Rescue-768x441

FIRE, RESCUE & COAST GUARD

This high-performance, V8 diesel outboard quickly reaches its top speed of 4000RPM, getting you to where you need to be, swiftly and efficiently.
BLI_Safeboat-768x768

WORKBOATS

The commercially rated CXO300 has been designed and built for purpose to support your commercial operations. Our comprehensive global support network is there for you 24/7 to ensure downtime is kept to a minimum.
sectors-energy-768x498

PILOT BOATS

The CXO300 produces 20-35% less CO2 than comparable gasoline products, making those trips back and forth on Pilot boats less harmful to the natural environment, whilst also reducing your carbon footprint.

sectors-pilot-boat-768x512

ENERGY

Having received EPA Tier 3, RCD II and IMO Tier II certification of approval, the CXO300 is one of the most environmentally friendly diesel outboard options available to assist in energy and environmental jobs out at sea.

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