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.

FAQ – Mercury 300hp Outboard Motor 300CXL

Q1: What is the purpose of counter rotation on the 300CXL?
Counter rotation balances thrust in twin-engine setups, reducing steering torque and improving handling.

Q2: Is the 300CXL suitable for single-engine boats?
It can be used, but it is primarily designed for twin-engine port-side applications.

Q3: What is the difference between 300XL and 300CXL?
The 300XL is standard rotation, while the 300CXL is counter rotation for twin setups.

Q4: Does the 300CXL have the same performance as the 300XL?
Yes. Power, torque, and fuel efficiency are identical—only rotation direction differs.