2026 Sea Ray SLX 400
Price on request
Boat in Austin, TX 78750 US
Built in 2026
SLX 400
1 Engine (--)
40 feet
Gas
Fiberglass/Reinforced
2026 Sea Ray SLX 400 Video Tours
Boattest.com Review
Overview
The Sea Ray 400 SLX with outboard power represents a refined blend of performance and comfort, featuring the latest Mercury 300 horsepower V8 outboards. This model maintains ample swim platform space despite the outboard configuration and integrates advanced technology and thoughtful design elements throughout the vessel.
Exterior Design and Swim Platform
The swim platform remains spacious, extending only 16 inches from the transom at its narrowest point, ensuring no compromise in usable space despite the outboard engines. The transom is equipped with 9-inch pull-up cleats on both sides, and deep storage compartments under the port side seating accommodate longboards, skis, and wakeboards. A convenient inflator for water toys is included, along with a cleverly stored pole that can be used to support a stand-up transom shower. Shore power connections, city water inlet, electrical and TV hookups, and a fresh water washdown are all neatly organized in one area, complemented by USB connectivity adjacent to the lounge.
Power and Performance
Powered by triple Mercury 300 horsepower V8 outboards featuring advanced technology such as larger alternators and quieter operation, the 400 SLX delivers impressive performance. The boat weighs approximately 21,258 pounds with fuel and passengers aboard. During testing, it reached a top speed of 51.8 miles per hour at 5,900 RPM, with an optimal cruise speed of 32.9 miles per hour at 4,000 RPM. Fuel consumption at cruise was measured at 34.8 gallons per hour, yielding a range of 319 statute miles while retaining a 10% fuel reserve. The vessel planes quickly, achieving 20 miles per hour in 6 seconds and 30 miles per hour in 9.5 seconds. Handling is responsive with a comfortable turning radius, and the joystick docking system allows for precise maneuvering in tight spaces. The hull design provides a smooth ride with minimal hull slap or pounding, even when crossing wakes at speed.
Mechanical and Systems Layout
The engine compartment is thoughtfully arranged, featuring an optional SeaKeeper 3 gyro stabilizer mounted centrally with stringers pre-built to accommodate it. On the port side are house and engine start batteries along with the generator, while the starboard side houses hydraulic components for the terrace. The vessel includes a generator and the innovative Fathom ePower system, which provides 22 kilowatt-hours of lithium-ion battery capacity to power onboard electrical systems such as air conditioning, electric grills, and refrigeration. This system intelligently manages power loads and interfaces with the Simrad multifunction displays for real-time monitoring and can be recharged via engine alternators, generator, or shore power.
Helm and Electronics
The helm station is one of the most refined in its class, featuring a soft-touch dash and dual 12-inch Simrad Evo 3S multifunction displays with the NaviOp system for comprehensive control of electrical systems and lighting presets. The displays support up to six panels simultaneously and include tide graphs, engine data, vessel controls such as cruise control, troll control, and active trim. Additional helm features include sport exhaust controls, flush-mounted Fusion stereo, spotlight control, Seakeeper controls, auto glide automatic trim tabs, joystick docking, and a Simrad VHF radio. Dual helm seats are ergonomically designed with 24-inch width, flip-up bolsters, and adjustable fore and aft swivel functionality. Generator and 120-volt AC controls are conveniently located beneath the port helm seat.
Deck and Bow Features
The deck layout includes strategically placed cleats for secure mooring, with a 10-inch cleat forward of midships and another at the bow. The bow area features dual hatches providing access to the ground tackle, which can be remotely controlled. Fresh water washdown is located nearby, flanked by LED navigation lights and a remote-controlled spotlight on the port side, enhancing safety and convenience.
Conclusion
The Sea Ray 400 SLX outfitted with triple 300 horsepower Mercury V8 outboards offers a compelling combination of power, technology, and comfort. Its well-considered design preserves functional space while integrating advanced systems such as the SeaKeeper gyro stabilizer and Fathom ePower battery system. Performance testing demonstrated quick acceleration, efficient cruising, and smooth handling, complemented by a sophisticated helm and electronics package. Overall, the 400 SLX is a versatile and comfortable boat that performs confidently in a variety of conditions, making it a strong contender in its class.
Overview from around the web 2026 Sea Ray SLX 400
Customers are praising the 2026 Sea Ray SLX 400 for its luxurious design, spacious layout, and powerful performance
Many highlight the boat’s sleek styling combined with advanced technology, making it ideal for both relaxing cruises and high-energy water activities. The comfortable seating and well-appointed amenities receive consistent positive remarks, as do the smooth handling and reliable engines. Owners also appreciate the versatility of the SLX 400, noting it as perfect for entertaining guests or enjoying family outings on the water. Overall, feedback emphasizes the boat’s blend of elegance, functionality, and enjoyable driving experience.
The Biggest Pros and Cons
The 2026 Sea Ray SLX 400 offers a compelling blend of luxury, performance, and innovative features, making it a standout choice in the premium sport boat category. Here are some of the key pros and cons to consider:
Pros
Luxurious Design and Comfort: The SLX 400 boasts a sleek, modern design with high-quality materials and finishes throughout. Its spacious cockpit and plush seating provide ample comfort for family and guests.
Advanced Technology: Equipped with the latest marine electronics, including a large touchscreen helm display, advanced navigation systems, and integrated audio options, the SLX 400 ensures an intuitive and enjoyable experience on the water.
Powerful Performance: With multiple engine options, including twin sterndrives, the SLX 400 delivers impressive speed and smooth handling, ideal for cruising, watersports, or entertaining.
Versatile Layout: The boat features a well-thought-out layout that maximizes usable space, including a fully equipped wet bar, sun pads, and convertible seating arrangements.
Quality Build: Sea Ray’s reputation for craftsmanship is evident, with durable construction and attention to detail ensuring reliability and longevity.
Cons
Price Point: As a luxury sport boat, the SLX 400 carries a premium price tag, which may be a consideration for budget-conscious buyers.
Fuel Consumption: With powerful engines, fuel efficiency can be moderate, especially at higher speeds, leading to increased operating costs.
Size and Storage: While spacious, the 40-foot length might pose challenges for storage and docking in smaller marinas or private docks.
Learning Curve: The advanced technological features and controls may require some time for new owners to become fully comfortable and proficient.
Made For
The 2026 Sea Ray SLX 400 is designed for boating enthusiasts who seek a perfect blend of luxury, performance, and versatility. It’s ideal for families and friends who enjoy spending quality time on the water, whether cruising, entertaining, or watersports. With its spacious layout, premium amenities, and powerful performance, the SLX 400 caters to those who value comfort, style, and high-end craftsmanship in a day boat that can handle everything from relaxing outings to adventurous excursions.
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 2026 Sea Ray SLX 400 | |||||
|---|---|---|---|---|---|
| Price on request | Price on request | Price on request | Price on request | $37,000 | $37,000 |
| Austin | Austin | Austin | Austin | Montgomery | Montgomery |
| 40' | 31' | 22' | 28' | 23' | 23' |
| - | Mercruiser | MERCRUISER | Mercruiser | Mercruiser | Mercruiser |
| - | - | - | - | 300 hp | 300 hp |
| 306 | 25 | 215 | 25 | 20 | 20 |
Other Sea Ray SLX 400 boats for sale in Texas, United States
Other Sea Ray boats for sale in Texas, United States
Meet the Broker
Address
Boat Location
Contact NXT LVL -Austin about 2026 Sea Ray SLX 400
12971 Research Blvd, Austin, TX, 78750
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