Mercury 300 HP Verado Electro-Hydraulic Power Steering Trim and Tilt Extra Long Shaft Outboard Motor

The Mercury Verado 300 XL is a 4-stroke outboard marine engine designed for premium yachts, large luxury boats, and multi-engine professional applications requiring an extra-long shaft, featuring a 300 HP / 221 kW and 4600 cc V8 (8-cylinder) engine. The Verado series encompasses Mercury's most advanced outboard engines in the premium segment. It is specifically developed for high-end yachts and large boats with its AMS (Advanced Mid Section) gearbox and electro-hydraulic steering system.

Verado 300 XL Series Features and Technology Advantages

Electro-hydraulic steering eliminates the need for mechanical cables, providing exceptional maneuverability and comfort. The AMS gearbox optimizes power transfer, increasing fuel efficiency. Active Trim automatic trim management comes standard.

• V8 (8-Cylinder) Engine (4600 cc): Electro-hydraulic steering eliminates the need for mechanical cables, providing exceptional maneuverability and comfort.
• Extra-Long Shaft (572 mm (22.5")): Ensures the propeller operates at optimum depth for the correct transom height.
• Electro-Hydraulic Steering: No mechanical cables — precise maneuver control and low steering effort.
• Electric Start: Instant engagement with a key or button — comfortable and fast starting.
• Electric Trim and Tilt (Power Trim & Tilt): Adjust trim angle with a button during navigation — optimizes fuel efficiency; tilt allows the engine to be raised completely.
• External Floating Fuel System: Connection for a large capacity external tank — range determined by user needs.

Extra-Long Shaft — Which Boat Type Is It Suitable For?

The extra-long shaft (572 mm (22.5")) ensures the propeller operates at the correct water depth on large fiberglass and aluminum boats with high freeboards. It is 64 mm longer than a standard long shaft (508 mm).

Technical Specifications

Who is This Engine For?

• Premium yacht and luxury large boat: ultimate comfort with electro-hydraulic steering and AMS gearbox
• Multi-engine configuration: consistent power delivery and DTS synchronization
• Long-distance offshore cruising: Active Trim and automatic fuel management
• Rental luxury yacht and charter: high reliability and low maintenance costs

Maintenance and Longevity

4-stroke Mercury engines operate trouble-free for many years with regular oil changes and end-of-season maintenance protocols. The impeller of the water-cooled system should be checked every 100 hours or every two seasons. In saltwater use, freshwater flushing is mandatory after each use.

Related maintenance categories: Maintenance Kit | Engine Oil | Impeller | Mercury Spare Parts

Frequently Asked Questions

What is the main difference between the Verado series and standard FourStroke?

Verado offers an AMS (Advanced Mid Section) gearbox and an electro-hydraulic steering system. Its mechanical cable-free design provides more precise maneuvering and lower maintenance. DTS digital throttle makes multi-engine synchronization easier.

How does the electro-hydraulic steering system work?

The electro-hydraulic system transmits steering movement via an electronic signal to a hydraulic actuator. With no mechanical cable friction, it provides much lower steering effort and higher precision. In multi-engine applications, the simultaneous turning of the engines is automatically coordinated.

What does the Active Trim system do?

Active Trim automatically optimizes the trim angle using GPS speed and acceleration data. It eliminates the need for manual trim adjustments during speed changes — fuel consumption and cruising comfort are continuously optimized.

Which boat and yacht brands are compatible with the Verado 300 XL?

Mercury outboard motors are compatible with many fiberglass, aluminum, and inflatable boat models thanks to their universal transom clamp or transom mounting system. The only criteria are your boat's 572 mm (22.5") transom height and the maximum engine power approved by the manufacturer. You can get compatibility confirmation from Clever Marin by sharing your boat model.

Related Products and Categories

• Mercury Outboard Motors
• Mercury Marine Products
• Mercury Spare Parts
• Mercury Verado 175–400 HP
• Mercury Verado 350–500 HP
• Outboard Motors
• Boat Engines
• Maintenance Kit
• Impeller
• Anode

Is This the Right Configuration for Your Boat?

Share your boat model, transom height, and intended use — let's confirm the suitability of the Mercury Verado 300 XL engine for your boat and the correct shaft selection together.