Description

Mercury 300CXL FourStroke DTS 25″ EFI V8 Counter-Rotation Outboard Motor

The Mercury 300CXL FourStroke DTS 25″ EFI V8 Counter-Rotation Outboard Motor is a flagship high-performance outboard engineered for large offshore fishing boats, center consoles, catamarans, and twin- or triple-engine installations. Powered by Mercury’s 4.6-liter V8 DOHC 32-valve FourStroke engine, it delivers exceptional acceleration, impressive mid-range torque, and outstanding fuel efficiency while maintaining smooth, quiet operation. The CXL designation indicates a 25-inch Extra-Long shaft with Counter-Rotation, making it ideal for multi-engine setups where balanced handling and steering control are essential.

Equipped with Digital Throttle & Shift (DTS), the 300CXL provides cable-free electronic throttle and shifting for precise control, smoother gear engagement, and effortless docking. Advanced Electronic Fuel Injection (EFI) with Advanced Range Optimization (ARO) automatically optimizes fuel delivery to maximize efficiency throughout the RPM range. Additional premium features include SmartCraft® Engine Guardian, Power Trim & Tilt, an 85-amp alternator, and Mercury’s convenient Top Cowl Service Door, allowing routine oil checks without removing the engine cowling.

Specifications

• Engine Type: V8, DOHC 32-Valve, 4-Stroke
• Horsepower: 300 HP
• Displacement: 4.6 Liters (279 cu. in.)
• Fuel System: Electronic Fuel Injection (EFI)
• Fuel Management: Advanced Range Optimization (ARO)
• Control System: Digital Throttle & Shift (DTS)
• Starting System: SmartStart Electric Start
• Ignition: SmartCraft PCM Digital Ignition
• Shaft Length: 25″ (XL Extra-Long Shaft)
• Rotation: Counter-Rotation (CXL)
• Trim & Tilt: Power Trim & Tilt
• Steering: Hydraulic Steering Compatible
• Gear Shift: Forward, Neutral, Reverse
• Gear Ratio: 1.75:1
• Alternator Output: 85 Amps (1,071 Watts)
• Recommended Full Throttle RPM: 5,200–6,000 RPM
• Fuel Type: Unleaded Gasoline (87 Octane Minimum)
• Approximate Dry Weight: 538 lbs (244 kg)

Key Features

• Powerful 4.6L V8 FourStroke engine delivers exceptional torque and acceleration.
• Digital Throttle & Shift (DTS) provides smooth, precise, cable-free engine control.
• Counter-rotation gearcase is designed for twin, triple, and quad-engine installations.
• Electronic Fuel Injection (EFI) ensures instant starts and responsive throttle performance.
• Advanced Range Optimization (ARO) improves fuel economy across the operating range.
• High-output 85-amp alternator powers multiple marine electronics and onboard accessories.
• SmartCraft® Engine Guardian continuously monitors and protects critical engine systems.
• Top Cowl Service Door allows quick oil checks and routine maintenance.
• Advanced vibration isolation delivers exceptionally quiet and smooth operation.
• Corrosion-resistant construction provides long-lasting freshwater and saltwater durability.

Ideal Applications

• Offshore center console boats
• Twin- and triple-engine offshore fishing boats
• Catamarans
• High-performance recreational boats
• Walkaround boats
• Express fishing boats
• Large bay boats
• Coastal cruisers

Why Choose the Mercury 300CXL FourStroke DTS?

The Mercury 300CXL FourStroke DTS is designed for boaters who demand maximum performance, refined electronic controls, and dependable reliability in multi-engine applications. Its 4.6L V8 delivers outstanding power, while Digital Throttle & Shift, counter-rotation capability, and SmartCraft® technology provide superior handling, efficiency, and ease of operation. Whether you’re chasing offshore game fish, running long coastal passages, or powering a premium recreational vessel, the Mercury 300CXL FourStroke DTS offers the performance, durability, and innovation that have made Mercury Marine a leader in modern outboard technology.

Mercury 300CXL FourStroke DTS. The high-displacement, quad-cam design of the new V8 powerheads generates plenty of torque, especially at mid-range. Combine ample power with lightest-in-class weight from 300hp, and the result is exhilarating performance.