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.