Mercury 350XXL Verado V10 350HP Four-Stroke Outboard Motor – Black
The Mercury 350XXL Verado V10 is a high-performance 350-horsepower four-stroke outboard motor engineered for boat owners who demand powerful propulsion, refined operation, and advanced marine control technology. Featuring Mercury’s impressive 5.7-liter V10 powerhead, this white-finish outboard combines substantial horsepower with sophisticated engineering for large offshore boats, center consoles, and other compatible marine vessels.
Designed for demanding boating conditions, the Mercury 350XXL comes equipped with Digital Throttle & Shift (DTS), electric starting, power trim and tilt, and a 30-inch ultra-long shaft configuration. Weighing approximately 717 lbs, it is suitable for compatible single-engine and multiple-engine installations where substantial power and dependable handling are essential.
Whether you operate a large recreational boat, an offshore fishing vessel, or a performance-oriented center console, the Mercury 350XXL Verado offers an advanced propulsion solution backed by Mercury’s V10 engineering and SmartCraft technology.
Mercury 350XXL Verado V10 Specifications -Black
- Manufacturer: Mercury Marine
- Engine Family: Verado
- Model: 350XXL
- Horsepower: 350 HP
- Engine Configuration: V10
- Engine Displacement: 5.7 Liters
- Engine Type: Naturally Aspirated Four-Stroke
- Engine Finish: White
- Starting System: Electric Start
- Throttle and Shift: Digital Throttle & Shift (DTS)
- Steering: Advanced Electro-Hydraulic Steering
- Trim System: Power Trim and Tilt
- Shaft Length: 30 Inches (Ultra-Long)
- Approximate Weight: 717 lbs
- Engine Management: Mercury SmartCraft Technology
- Propeller: Sold Separately
What Makes the Mercury 350XXL Verado V10 Stand Out?
Powerful 350HP V10 Performance
At the heart of the Mercury 350XXL is a naturally aspirated 5.7-liter V10 four-stroke powerhead developed to deliver substantial horsepower for large and demanding boats. Its ten-cylinder configuration provides smooth power delivery and strong acceleration, making it an attractive option for offshore cruising, fishing, and other applications requiring serious marine performance.
The V10 platform brings together advanced engineering and refined power delivery, helping boat owners enjoy a capable propulsion system without compromising the comfortable boating experience expected from the Verado family.
Digital Throttle & Shift for Precise Control
The Mercury Digital Throttle & Shift (DTS) system replaces traditional mechanical throttle and shift connections with electronic controls. This technology provides smooth gear engagement, responsive acceleration, and precise engine command.
DTS helps make maneuvering around marinas, adjusting cruising speeds, and controlling power in changing water conditions more comfortable. Combined with advanced electro-hydraulic steering, the Mercury 350XXL provides an integrated control experience designed for confident operation.
Smooth, Quiet and Refined Operation
Comfort is an important part of the Verado engineering philosophy. Mercury’s Advanced MidSection (AMS) mounting system helps isolate engine vibration from the boat, reducing the transmission of unwanted movement and noise.
Additional engineering measures help control mechanical and induction noise, creating a more comfortable environment for passengers and crew. This refined operation is particularly valuable during longer journeys and offshore cruising.
Adaptive Speed Control Technology
Mercury’s Adaptive Speed Control helps maintain consistent engine RPM when operating conditions change. Variations in boat load, water movement, and turning conditions can affect engine speed, but this technology automatically adjusts engine operation to help maintain the selected RPM.
The result is more consistent cruising, improved low-speed control, and a smoother experience when navigating changing water conditions.
Advanced Gearcase and Propeller Performance
The Mercury 350XXL incorporates a hydrodynamic gearcase designed to support efficient operation at higher speeds while maintaining stability and control.
Its Revolution X propeller system is engineered to provide strong water grip and responsive acceleration. The propeller’s design supports confident low-speed maneuvering and helps deliver effective acceleration when moving onto plane.
Please note that the propeller is sold separately.
White Verado Finish
The white exterior gives the Mercury 350XXL a distinctive appearance that complements modern offshore boats, luxury center consoles, and multi-engine transom installations. Beyond its visual appeal, it offers the same V10 engineering and advanced control technologies associated with the Verado range.
Recommended Applications for the Mercury 350XXL
The Mercury 350XXL 350HP outboard is engineered for larger boats that require substantial horsepower and a 30-inch shaft configuration.
Potential applications include:
- Large offshore fishing boats.
- Heavy-duty center console boats.
- Offshore recreational vessels.
- Multi-engine boat installations.
- Large sport-fishing boats.
- Compatible performance and cruising vessels.
Before purchasing, always verify your boat manufacturer’s maximum horsepower rating, transom requirements, engine weight capacity, and recommended engine configuration.
Understanding the 30-Inch Ultra-Long Shaft
The Mercury 350XXL features a 30-inch ultra-long shaft, making it important to confirm your boat’s transom dimensions before ordering.
Outboard shaft lengths are generally categorized as follows:
- 15 inches: Short shaft.
- 20 inches: Long shaft.
- 25 inches: Extra-long shaft.
- 30 inches: Ultra-long shaft.
To determine the required shaft length, measure vertically from the top of the transom mounting surface to the bottom of the hull along the engine mounting centerline. Always consult your boat manufacturer’s recommendations to confirm the correct shaft configuration.
Selecting the correct shaft length helps ensure proper engine positioning, water pickup, and overall propulsion performance.
Installation, Rigging and Additional Equipment
Although the Mercury 350XXL comes with important built-in operating features, additional equipment may be required to complete your boat’s installation.
Depending on your vessel and existing setup, you may need:
- A compatible Mercury propeller.
- Digital throttle and shift controls.
- Compatible SmartCraft gauges or display systems.
- Steering components and connections.
- Engine mounting and rigging equipment.
- Appropriate battery and electrical connections.
- Fuel system components.
The required accessories depend on whether you are installing a single engine, replacing an existing outboard, or configuring a multi-engine boat. Confirm compatibility before purchasing additional equipment.
Why Choose Alfamarine Outboards?
At Alfamarine Outboards, we help boat owners, fishing operators, and marine professionals find the right outboard motors for their vessels. Our selection covers leading marine manufacturers, including Mercury, Suzuki, Yamaha, and other established outboard brands.
Whether you are looking for a powerful 350HP Mercury Verado, a reliable replacement engine, or an outboard motor for a new boat installation, our goal is to help you find an engine that matches your vessel and boating requirements.
Contact Alfamarine Outboards to enquire about the Mercury 350XXL Verado V10, confirm availability and pricing, and get assistance with selecting compatible marine equipment.
Frequently Asked Questions – Mercury 350XXL Verado V10-Black
How much horsepower does the Mercury 350XXL produce?
The Mercury 350XXL Verado is rated at 350 horsepower. It features a naturally aspirated 5.7-liter V10 four-stroke engine designed for large boats requiring substantial marine propulsion power.
What is the difference between the Mercury 350XXL and other 350HP outboards?
The Mercury 350XXL combines a V10 engine configuration with Digital Throttle & Shift, SmartCraft technology, advanced electro-hydraulic steering, Adaptive Speed Control, and Mercury’s Verado mounting and noise-reduction engineering. Its exact advantages compared with other engines depend on the boat, installation, and operating requirements.
What does XXL mean on a Mercury outboard?
The XXL designation identifies the 30-inch ultra-long shaft configuration. This shaft length is designed for boats with compatible transom dimensions requiring an ultra-long-shaft outboard.
Is the Mercury 350XXL a four-stroke engine?
Yes. The Mercury 350XXL Verado uses a four-stroke, naturally aspirated V10 engine with 5.7 liters of displacement.
How much does the Mercury 350XXL weigh?
The listed approximate weight is 717 lbs. Buyers should confirm the exact weight for the specific engine configuration and installed accessories before planning their boat’s transom capacity.
Does the Mercury 350XXL come with a propeller?
The propeller is sold separately. The appropriate propeller should be selected according to the boat’s specifications, engine installation, intended operating RPM, and performance requirements.
Can I install two Mercury 350XXL outboards on my boat?
The Mercury 350XXL is designed for compatible single-engine and multi-engine installations. However, the suitability of a twin-engine setup depends on the boat’s maximum horsepower rating, transom construction, engine spacing, weight capacity, and steering and rigging requirements.
What controls are compatible with the Mercury 350XXL?
The engine uses Mercury Digital Throttle & Shift technology. Compatible DTS controls, steering components, SmartCraft instrumentation, and associated rigging should be selected according to the specific engine and boat configuration.
Where can I buy a Mercury 350XXL Verado V10 outboard motor?
You can contact Alfamarine Outboards to enquire about the Mercury 350XXL 350HP Verado V10, along with other Mercury, Suzuki, Yamaha, and leading-brand outboard motors. Visit https://alfamarineoutboards.com/ for product information and enquiries.












