2025 A Year-In-Review: High Torque, Safer and Cleaner Outboards

Scaling series production, securing a record military fleet order, and driving the industry shift toward high torque, safer and cleaner ‑diesel outboards.

 2025 was a pivotal year for Cox Marine. The company streamlined its commercial strategy, readied its V8 platform for series production in West Sussex, UK, and secured its largest end u‑ser order to date, all against a backdrop of rising demand for diesel propulsion in mission critical,‑ and commercial applications.

Largest end user order: 92 V8 diesel outboards for a European military fleet

In November 2025, Cox Marine announced a record order of 92 300hp V8 diesel outboards, supplied via distribution partner De Wolf Maritime Safety, to be installed in twin engine configurations across HDPE (high-density polyethylene) and aluminium vessels for an undisclosed European military project.

The project highlights Cox Marine’s ability to deliver high volume solutions for demanding operational environments and further cements its position in the global defence market. This milestone was covered across industry media, including The Maritime Executive, noting the strategic importance of diesel outboards in fleet operations and the trust in Cox Marine’s reliability and performance for accelerated delivery timelines.

Strategy realignment and leadership transition to drive series production

Earlier in the year, Cox Marine refined its commercial model, completing the move to a B2B route to market backed by confident strategic distributors and a unified business development approach focused on government and commercial contracts.

To support the shift from R&D to high volume series production, Cox Marine announced leadership changes effective 1 July 2025, with George Bramley stepping into the CEO role (retaining CFO responsibilities) and James Eatwell becoming CTO, while outgoing CEO Gavin Wesson moved to Non Executive Chairman to provide strategic oversight.

Strategic partnerships and network strength

Cox Marine renewed multiyear agreements with key distributors, including Ring Power in the U.S. (extended to 2030) and GY Marine Services in the Middle East, while continuing to appoint new dealers globally as part of its “Fewer, Bigger, Better” distribution strategy. Ring Power’s expanded U.S. territory and ongoing dealer additions across the East Coast, Great Lakes, Caribbean and Bermuda reinforce market coverage and service depth for commercial, government and select recreational users of Cox’s diesel outboards.

“What we’re seeing across the GCC mirrors the global picture that operators want safer, single ‑fuel propulsion with the endurance and efficiency to run demanding missions – from commercial workboats to USVs – and they want it with reliable, local support. Partnering with GY Marine Services lets us deliver exactly that,” says Hugh Huddleston, Business Development Director at Cox Marine.

Team customer engagement in 2025 included onsite visits across numerous territories including Middle East, North America, Central America and Asia Pacific, reflecting hands-on support for partners and end users.

Cox Marine’s Henry Green, Gemma Crocker and George Bramley visiting Australian distributor Power Equipment HQ in Victoria.

Hugh Huddleston of Cox Marine with key Middle East partner GY Marine Services in Abu Dhabi

Product milestones, testing and sector engagement

Across 2025, Cox Marine showcased the V8 diesel outboards in use cases that demand endurance, range and safety, from search and rescue missions and fisheries and aquaculture to the offshore oil and gas sector. The engineering team also completed extreme heat testing in Doha, confirming durability under harsh thermal loads, an essential requirement for operators in hot climates.

Cox Marine maintained an active events presence, attending METSTRADE 2025 and sharing ongoing progress toward series production of the 350‑hp V8, which had achieved EPA Tier III approval in 2024 for commercial and recreational applications. On the stand, the V8 300-hp diesel outboard displayed made a big statement, impressing visitors, and conversations routinely opened with “How quickly can we get these?” as buyers explored recreational, government and commercial use c‑ases. That urgency mirrors the wider shift to diesel for operators prioritising range, safety and high torque at low RPM.

Manufacturing & operations: durability and people excellence

On the operations side, Cox Marine invested in a new paint booth to boost V8 outboard durability and coating quality, a practical enhancement tied to service life and corrosion resistance for long duty fleets.  Cox Marine’s People Team won British HR Awards – People Team of the Year (<500 employees) for the second consecutive year, reflecting initiatives such as flexible or condensed working patterns, benefit enhancements, and leadership development that improved engagement and reduced attrition across the business.

Cox Marine’s People Director, Holly Cooper and People Partner, Louise Page, accepting the “People Team of the Year” accolade at the British HR Awards 2025

Coverage of the award brought measurable outcomes, including a 16.5% jump in manufacturing engagement and significantly lower staff turnover, evidence of sustained people-centric execution in a manufacturing context.

Market backdrop: rising demand for diesel outboards

The diesel outboard market continued to expand in 2025, driven by commercial, defence and heavy-use operators prioritising fuel efficiency, high torque at low RPM, safety (higher flashpoint, single fuel policies), and extended lifecycle versus gasoline alternatives. Independent market analyses project steady growth for diesel outboards through 2033, with above 200hp segments gaining relevance in professional applications. Industry commentary also highlighted OEM focus on higher power outboards in 2025 as premium segments remained resilient.

Third party testing and reporting reinforced the efficiency advantage of Cox’s V8 engine, attributing 30%+ fuel savings at cruise versus equivalent gasoline outboards, translating into longer range, fewer refuelling stops, and lower TCO for operators running hundreds of hours per year.

Government, defence and first responders: diesel as a strategic asset

In mission critical operations, diesel outboards combine safety, range and high torque, which is why agencies and volunteer services are switching to Cox Marine’s V8 outboard. The Western Australia VMR ‘King George’ case study illustrates this clearly.  An 11.1 metre aluminium rescue boat powered by twin Cox 300hp diesel outboards achieves 38knots top speed, 28knots cruise, and carries >1,000 litres of diesel for extended range across remote coastlines. The V8’s 949 Nm torque delivers rapid acceleration and heavy load capability, critical when crews are working against tides, heat and long distances.

Beyond speed and endurance, safety and through life cost are central. Diesel’s compression ignition eliminates spark risk, supporting operations near volatile materials or in hazardous zones, while up to ~30% lower fuel consumption versus petrol outboards reduces refuelling frequency and operating costs, both decisive for long patrols and standby duties.

For operators standardising fuels across fleets, diesel outboards also support single fuel policies and longer service intervals, cutting downtime and simplifying logistics, all key advantages for coast guard, port security and police units operating at high tempo.

Outlook for 2026

Series production and scale‑up

With leadership and a facility aligned for series production, a strengthened partner network, and proven performance across extreme environments and professional sectors, Cox Marine enters 2026 poised to scale deliveries, deepening adoption in defence, government and industrial markets where diesel’s operating advantages (safety, torque, range, lifecycle cost) remain decisive.

Government readiness: instant stock and rapid fielding

Critically for government fleets, Cox Marine and its distributors are prioritising instant stock / ready-to-‑ship availability, supported by regional inventory (from essential spares up to full powerheads) and rapid despatch logistics to minimise downtime and accelerate fielding. This is complemented by fast-‑track production paths for urgent programmes, and Cox Marine’s ability to deliver high ‑volume fleet orders on shortened timelines out of its state-of-the-art production facility in Shoreham by Sea on the south coast of the UK.

Autonomy & USVs: priority growth area

USVs (uncrewed surface vessels) is expected to be a growth focus in 2026. NATO’s 2025 trials integrating USVs with standing naval forces, and the U.S. Navy’s 720hour, no ‑maintenance engine endurance milestones for unmanned vessels, signal accelerating operational adoption and an emphasis on diesel endurance and reliability for autonomous fleets.

Cox Marine’s V8 outboards map directly to those needs with:

• Sparkfree‑ safety
• Class leading low RPM‑ torque
• Extended range (≈30% lower fuel burn vs. petrol)
• “Hotswap‑” replacement
• Open control architecture (ISO CANbus) that eases integration with autonomy stacks.

Cleaner marine propulsion: HVO ready‑ today

Cox Marine’s V8 diesel outboards are also compatible with HVO (Hydrotreated Vegetable Oil) as a drop-‑in renewable diesel, enabling fleets to cut lifecycle CO₂ without hardware changes while maintaining range, torque and compliance (EPA Tier 3 / IMO II / RCD II). This gives operators a practical, immediate step toward cleaner operations in 2026 and beyond, without sacrificing duty cycle‑ performance.

For further reading on Cox Marine’s cleaner propulsion strategy and HVO compatibility, see “Diesel Outboards and Marine Sustainability: How Cox Marine Leads Cleaner Propulsion” by Cox Marine’s CTO, James Eatwell.

Distribution and support: A force multiplier

Distribution and support remain a force multiplier. Renewed, long ‑term partnerships with Ring Power in the U.S. and GY Marine Services in the Middle East, alongside an expanded dealer footprint across other key territories, including MENA and APAC, enable increasing instant stock availability with local installation, training and through life‑ support, which is crucial for public sector readiness and quick turn‑ deployments.

Ready to make the switch?

Mission ready power, single‑ fuel‑ simplicity. Make the switch to Cox Marine diesel outboards – enquire now