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Reliable diesel outboards for fishing and aquaculture

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

Built for tough, daily use

Across key US fishing regions – from the icy waters of Alaska to Maine’s famous lobster fishing and the South’s offshore fishing spots – fishing and aquaculture play a vital role in the economy and local livelihoods. Cox Marine diesel outboards deliver the power, efficiency, and endurance required for professional operations at sea.

Fishing and aquaculture vessels often operate in remote or open-water environments for long hours – conditions where reliability is critical. Cox Marine’s V8 diesel outboard provides high torque at low RPM, allowing crews to work efficiently even under heavy loads or in choppy seas.

With growing demand in US markets, Cox Marine engines are becoming a trusted solution for operators seeking a cleaner, longer-lasting alternative to gasoline outboards.

Crab Farming

Why fishing and aquaculture operators choose Cox Marine

Longer range, fewer refuels

With great fuel efficiency than gasoline engines, vessels can travel further and operate longer – ideal for long fishing runs or tending to multiple aquaculture sites in one trip.

High torque for heavy loads

Whether hauling gear, nets, or farm equipment, Cox Marine outboards deliver smooth, powerful propulsion that gets the job done with control and confidence.

Engineered for dependability

With extended service intervals and a rugged marine build, the V8 is designed to withstand the rigors of daily commercial use in challenging sea environments.

Lower emissions, cleaner seas

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

Supporting sustainable marine industries

Cox Marine is already working with operators to modernize US fleets with safe, efficient, and environmentally conscious propulsion. In Alaska, our outboards help drive commercial fishing operations, while on the East Coast, aquaculture and shellfish farms benefit from our reliable technology.

Optimised for commercial marine work

Twin-turbo diesel power

Up to 1052 lb-ft of torque and up to 350 hp for unmatched pulling power and acceleration.

Smooth operation

Quiet, low-vibration running improves comfort during long days at sea.

Flexible installation

Universal mounting and NMEA 2000 compatibility simplify upgrades and integration.

Backed by global support

Our service network ensures you have access to parts, expertise and assistance wherever your work takes you.

Performance Data

The Cox Marine V8

Your Engine, Your Way

300 V8 White
350 V8 White
300 V8 Black
350 V8 Black