Last featured in Ship & Boat International in September 2018, Cox Powertrain's CXO300 diesel outboard underwent its first public demonstrations at this year’s Seawork International event in Southampton, UK in June, before going on to win in the Marine Power and Propulsion category at the Seawork International Innovation Awards.
Rated 224kW, the 4.4litre, 4-stroke, twin-turbo V8 CXO300 is scheduled to go into production later in the year. Cox Powertrain claims that the engine delivers "maximum torque...right through from 1,300-3,000rpm, reaching 650Nm", and offers “at least 25% better range compared to a gasoline outboard”. Weighing in at around 375kg, the outboard features: a tilt range of 71°; a trim range of -4° to +16°; and a maximum propeller diameter of 406.4mm.
The CXO300 will be produced at Cox Powertrain's 2,601m2 Shoreham assembly facility from October this year, with the first engines scheduled for delivery in Q4. With a price tag of £35,000 (US$50,000), potential customers can expect to pay more than they would for a conventional petrol outboard, but Cox predicts that this outlay will be surpassed by cost-of-life savings, citing reduced fuel costs and an expected lifespan “three times longer” than that of an equivalent petrol outboard. The company also anticipates lower maintenance costs for the unit, stating that the engine should run for 1,200 hours before requiring servicing and estimating potential savings as high as £150,000 (US$191,000).