Cox Marine CXO300 diesel outboard engines were on display at Cannes Yachting Festival, one of the major European marine exhibitions held in Cannes from 7 to 12 September. We’ve been there as visitors and our report will be on the next issue of Powertrain magazine, the November/December one.

The British diesel outboard engine specialist put on display its CXO300 models for the very first time. The engines were hosted at the company’s stand as well as in action on the water in a twin installation on board an Axopar 37 (pictured above). The 300 hp, twin-turbo CXO300, V8 engine architecture has a unique design. According to Cox Marine, it ensures a substantial 25% improvement in fuel efficiency over gasoline outboards with an equivalent rating. The CXO300 combines hefty torque with low operational noise levels, and the extra-low emission figures that have earned it EPA Tier 3, RCD II, IMO II and BSO-II approval.

Cox Marine CXO300: twin installation is possible

The installation of twin CXO300s on board an Axopar 37 follows on from a deal brokered between Diesel Power, Cox Marine’s German distributor, and Axopar’s German dealer, Boote Polch. Given Axopar’s reputation for building fast motorboats with superior handling and especially fuel-efficient hulls, Cox reasoned that the high-performance Axopar 37 would make an ideal test bed for confirming the CXO300’s capabilities in a twin installation. Sea trials in Lymington, UK and the Mosel River in Germany have already successfully proved the outboards‘ capacity for generating speeds exceeding 46 knots at comparatively low revs, with excellent fuel consumption.

Highlights

AS Labruna launches the HEVOlution range of hybrid generators

The first model in the range, HEVOlution 80-37, made its world debut at the Metstrade in Amsterdam, the most prestigious international trade fair for nautical components, representing a decisive step towards innovative and environmentally friendly energy solutions.

Diesel of the Year 2025: dawn of the Hyundai DX05 & DX08

The Korean star is also reflected in the Diesel of the Year. South Korea is in the empire of industrial powers, cinema in the author anthology, K-pop in the playlist of teenagers. The 2025 edition is about Hyundai Infracore DX, 4- and 6-cylinder modular (BxS 110x132 mm), which have what it takes to ...

Alternative Engine Award: FPT under the sign of multi-fuel

An award that seems tailor-made for the XC13 by FPT Industrial. It is the Alternative Engine Award. The 13-litre has always been the star of the Cursor family and in the new X version it has been applied since its birth to IVECO trucks and, in the hydrogen version, has been on the ski slopes for thr...

Related articles

Volvo Penta is testing the Boat-to-Grid technology

In collaboration with Varberg Energi and Ferroamp, Volvo Penta is testing Boat-to-Grid (B2G) technology to explore the potential of enabling hybrid and electric vessel batteries to support the electrical grid.

AS Labruna launches the HEVOlution range of hybrid generators

The first model in the range, HEVOlution 80-37, made its world debut at the Metstrade in Amsterdam, the most prestigious international trade fair for nautical components, representing a decisive step towards innovative and environmentally friendly energy solutions.