monsoon engine

Monsoon System

5.3L and 6.2L Sterndrive Power

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monsoon engine

MONSOON Engines

Cobalt Monsoon engines are high-performance inboard boat engines designed for smooth power, long-term reliability, and efficient operation on the water. Built in partnership with GM Marine and manufactured in a dedicated facility in Tennessee, each engine is engineered specifically for premium boating performance.

Whether you’re cruising or towing, Monsoon engines deliver responsive acceleration, consistent power, and a quieter, more refined ride. Advanced fuel injection and airflow systems help improve fuel efficiency while maintaining the performance needed for watersports and all-day boating.

Designed for durability and ease of ownership, Monsoon engines combine proven engineering with simplified maintenance to keep you on the water longer.

Key Features:

  • Ultra-low emissions for cleaner boating
  • Cast aluminum block and cylinder heads for strength and durability
  • Closed cooling system for extended engine life
  • Reversed fresh air induction for improved airflow and performance
  • 11:1 compression for balanced power and efficiency
  • Single point drain system for easy maintenance

MONSOON Throttle Control

throttle
  • Multiple throttle control functions available for precise boat operation
  • Trim Assist automatically adjusts drive position for smoother acceleration and optimized performance
  • Cruise Control maintains consistent boat speed at the push of a button
  • Cruise Speed Up/Down allows fine-tuned RPM adjustments for better speed control
  • Surf models integrate advanced speed and control systems through Garmin touchscreen displays
  • Integrated safety features including kill switch, neutral lock, and trim control
monsoon engine

Award-Winning Performance, Unmatched Reliability

Award-Winning Performance, Unmatched Reliability

Cobalt Monsoon engines are high-performance inboard boat engines built for strong power, smooth acceleration, and long-term reliability. Available in 5.3L and 6.2L options, these marine engines are designed to deliver consistent performance, improved fuel efficiency, and reduced engine noise across a wide range of boating conditions.

Engineered in partnership with GM Marine, Monsoon engines feature advanced direct injection technology that helps optimize fuel usage, increase horsepower, and improve overall engine performance. Whether cruising or towing, these inboard marine engines provide dependable power and a more refined boating experience.

MONSOON 5.3L Direct Injected: Torque – 400 ft-lbs @ 3800 rpm | Power – 350 HP @ 5600 rpm

MONSOON 6.2L Direct Injected: Torque – 460 ft-lbs @ 3800 rpm | Power – 430 HP @ 5600 rpm

Monsoon Engines