Name: Mercury 300hp Outboard Motor 300CXL
Brand: Mercury
SKU: NM860445819
Price: 16557.00 USD
Availability: InStock

Description

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.

Specifications

Specification	Details
Engine Type	V-8 Four-Stroke
Horsepower	300 HP
Model	300CXL
Rotation	Counter Rotation
Fuel System	Electronic Fuel Injection (EFI)
Displacement	4.6 L
Cylinders	V-8
Shaft Length	25" (X-Long)
Steering	Remote Mechanical
Starting System	Smart Start Electric
Full Throttle Range	5200 – 6000 RPM
Alternator Output	85 Amp / 1,071 Watt (Idle Charge)
Weight	538 lbs
Maximum Trim Range	20° (-6° to 14°)
Maximum Tilt Range	73° (-6° to 67°)
Warranty	Mercury Marine 3-Year Warranty

What’s Included

Mercury 300hp Outboard Motor 300CXL
Counter-rotation gearcase
Power Trim & Tilt
Mounting hardware
Service tool kit & parts
Owner’s manual

FAQ

Frequently Asked Questions About Mercury 300hp Outboard Motor 300CXL

Who is the Mercury 300hp Outboard Motor 300CXL intended for on the water?

The Mercury 300hp Outboard Motor 300CXL is designed for twin-engine offshore boats. The row highlights 300 hp, V-8 Four-Stroke, remote mechanical, and a 25" (X-Long) shaft for a clearly defined operating setup.

What engine configuration does this outboard use?

This outboard is listed with 300 HP, and V-8 Four-Stroke. The specification row adds 4.6 L of displacement and electronic fuel injection (efi) fuel delivery, which helps buyers compare how this motor is set up for smooth, straightforward operation.

What control and rigging details are clearly stated for this unit?

This model is listed with a 25" (X-Long) shaft, Remote Mechanical steering, and Smart Start Electric starting. Those details matter because alternator output is listed at 85 Amp / 1,071 Watt (Idle Charge), helping buyers judge transom fit, helm style, and everyday operating convenience.

What kind of boat setup does this motor suit?

This outboard is aimed at boat setups that match its listed control and shaft arrangement. The row points to twin-engine offshore boats and highlights counter-rotation, and a 25" (X-Long) shaft, helping buyers narrow it to the right helm and transom layout.

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