Diesel Outboards Made for
Marine Performance
Experience the next generation of marine propulsion
Powering safer, more efficient marine operations
Precision-built for commercial, government, and recreational operators who demand endurance, safety, and performance on the water.
Eliminating explosion risk
Safer by design
Unlike petrol engines, the Cox V8 uses compression-ignition diesel technology, eliminating the explosion risk of spark ignition. With a higher flashpoint fuel system and robust construction, the V8 keeps your crew, vessel, and mission safer, especially in hazardous or high-threat environments.
Cleaner power without compromise
Lower emissions, higher standards
The Cox V8 is the only high-powered diesel outboard to achieve BSO-II certification, alongside EPA Tier 3, IMO II, and RCD II. Emitting just 4.6 g/kWh of combined hydrocarbons and NOx, it outperforms other diesel propulsion systems on environmental impact without compromising on power.
Exceptional range & endurance
Engineered to go the distance
With class-leading torque up to 1,052 Nm and specific fuel consumption as low as 260 g/kWh, the V8 delivers exceptional range and operational endurance. At 2,600 RPM, it hits peak torque, giving operators smooth, controlled power delivery for long shifts and heavy workloads.
1,500 hour commercial warranty
Built to last
Designed from the ground up as a marine-first engine, the V8 is stress-tested to withstand punishing offshore conditions. Its architecture supports a service life well beyond traditional petrol engines and is backed by up to 1,500-hour commercial warranties.
Carbon-neutral facility
Sustainably manufactured
The V8 is assembled at Cox Marine’s carbon-neutral UK facility, with key components made from recycled marine-grade aluminium. It’s the cleaner propulsion choice for operators focused on sustainable practices, compliance, and cost savings.
Performance Data
Technical Specifications 60° V8
| Power Output | 300 HP (224 kW) |
| Emissions Certifications | EPA 3, IMO II, RCD II, BSO-II |
| Max RPM | 4,000 |
| Displacement | 4.4L (266 cu.in) |
| Dry Weight | 393 kg (866 lbs)* |
| Aspiration | Twin-turbo |
| Gear Ratio | 1.46:1 |
| Shaft Lengths | 25", 30" & 35" |
| Power Output | 350 HP (260 kW) |
| Emissions Certifications | EPA 3, IMO II, RCD II, BSO-II |
| Max RPM | 4,000 |
| Displacement | 4.4L (266 cu.in) |
| Dry Weight | 393 kg (866 lbs)* |
| Aspiration | Twin-turbo |
| Gear Ratio | 1.46:1 |
| Shaft Lengths | 25", 30" & 35" |
Commercial Warranty
12 months
1000 hours
Commercial Warranty+
18 months
1500 hours
Recreational Warranty
5 years
1500 hours
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