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Diesel outboards for fishing and aquaculture

Fuel-efficient, high-torque propulsion for daily operations at sea

Built for tough, daily use

From coastal shellfish vessels to inshore fishing boats, commercial craft across the world rely on Cox Marine diesel outboards for dependable performance. Designed for long hours in remote or challenging waters, our V8 delivers high torque at low revs so crews can deploy gear, tend cages or reach distant fishing grounds with confidence.

As demand grows for clean-burning, durable propulsion, Cox Marine outboards are the preferred choice for operators seeking an efficient, longer-lasting alternative to petrol outboards.

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Why fishing and aquaculture operators choose Cox Marine

Longer range, fewer refuels

With greater fuel efficiency than petrol engines, vessels travel farther and work longer – ideal for extended fishing trips or servicing multiple aquaculture sites in a single outing.

High torque for heavy loads

Whether hauling nets, cages or farm equipment, Cox Marine outboards deliver smooth, powerful propulsion that keeps operations moving efficiently.

Engineered for dependability

With extended service intervals and a rugged marine build, the V8 withstands the rigours of daily commercial use in varied sea conditions.

Lower emissions, cleaner seas

Certified to EPA Tier 3, RCD II, and IMO II standards, Cox diesel outboards support responsible marine practices and future-ready operations.

Supporting sustainable marine industries

Cox Marine partners with fishing and aquaculture operators to modernise fleets with engines that balance performance, economy and environmental stewardship. From line boats to shellfish farms in France, our technology drives sustainable growth in coastal communities.