Mercury 300hp Outboard Motor 300CXL

Overview Mercury 300hp Outboard Motor 300CXL

The Mercury 300hp Outboard Motor 300CXL is engineered specifically for twin-engine configurations where balance, control, and efficiency matter most. Featuring a naturally aspirated 4.6L V8 FourStroke and counter-rotation gearing , this outboard reduces steering torque, improves tracking, and delivers confident offshore performance on boats requiring a 25-inch X-Long shaft .

Features and Performance

• 4.6L V8 FourStroke Powerhead – Strong low-end torque and smooth acceleration
• Counter Rotation Gearcase – Ideal for twin-engine balance and control
• Advanced Range Optimization – Closed-loop fuel control for efficient cruising
• Adaptive Speed Control – Maintains RPM through turns and rough water
• Lightweight V8 Design – Excellent power-to-weight ratio
• Electronic Fuel Injection (EFI) – Consistent starts and crisp throttle response
• Idle Charge Battery Management – Protects battery voltage under electrical load
• 85-Amp High-Output Alternator – Supports radar, GPS, and onboard electronics
• Power Trim & Tilt – Fine-tune performance and shallow-water operation

Why You Should Buy it

• Designed for twin-engine offshore boats
• Counter-rotation improves handling and straight-line tracking
• Powerful yet fuel-efficient 300hp V8 FourStroke
• Smooth, quiet operation for long offshore runs
• Proven reliability and easy maintenance
• Backed by a Mercury Marine 3-Year Factory Warranty

If you’re building or repowering a twin-engine setup , the 300CXL is the correct port-side match to the standard-rotation 300XL.