2026 Sea Ray SLX 400
$950,100
Boat in Afton 74331 US
Built in 2026
SLX 400
2 Engines (2x MERCRUISER)
40 feet
Gas
Fiberglass/Reinforced
A luxurious, high-performance bowrider/cruiser that blends sleek styling and powerful performance with a social, entertainment-ready layout - ideal for weekend trips, entertaining friends, or extended cruising in comfort and style.
- Engine: Twin Mercury MerCruiser 8.2L MAG ECT Bravo Three X SeaCore sterndrives
- Status: New
- Trades: Trades considered
- Location: MarineMax Grand Lake
- Length Overall: 40'
- Beam: 12' 1"
- Draft: 44" (sterndrives down) / 33" (sterndrives up)
- Dry Weight: 20,794 lb
- Deadrise: 21°
- Fuel Capacity: 250 gallons
- Water Capacity: 50 gallons
- Holding Tank: 28 gallons
- Expansive cockpit layout with premium seating - ideal for entertaining.
- Innovative fold-down swim terrace / extended swim platform, giving generous swim/water access and lounging space.
- Bow seating with convertible table / sunpad layout; forward seating with touring-style comfort.
- Cabin with sleeping capacity for 4 people (queen-sized aft berth + forward bunk convertible to social area).
- Wet bar in cockpit, entertainment-ready layout, suitable for extended stays or weekend trips.
- Digital helm dash with modern controls, advanced instrumentation, favorable ergonomics.
- Controls optimized for comfortable cruising and social-cruiser performance.
- Yacht-certified for safe operation.Sea Ray US+1
- Sleeps: 4 persons (aft berth + forward bunk)
When purchasing this 2026 SLX 400 at MarineMax Grand Lake, you're getting more than just a boat - you get access to:
- Quality pre-delivery preparation and support
- Financing and insurance options tailored for luxury boats
- Service scheduling and maintenance support through MarineMax
Price History
| Date | Event | Price |
|---|---|---|
| 5/21/26 | Price increased | $950,100 |
| 12/6/25 | Initial price | Price on request |
Videos from MarineMax Grand Lake on this 2026 Sea Ray SLX 400
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 exceptional blend of luxury, performance, and innovative features
Many highlight the spacious and well-appointed cockpit, noting the high-quality materials and attention to detail that create a comfortable and stylish environment. The boat's powerful engine options receive positive remarks for delivering smooth, responsive handling and impressive speed, making it ideal for both relaxing cruises and water sports. Owners appreciate the advanced technology integrated into the SLX 400, including intuitive touchscreen controls and premium sound systems, enhancing the overall boating experience. The versatile layout, featuring ample seating and sunbathing areas, is frequently mentioned as perfect for entertaining family and friends. Overall, customers value the 2026 Sea Ray SLX 400 for its combination of elegant design, reliable performance, and thoughtful amenities, making it a standout choice in the luxury sport boat category.
The Biggest Pros and Cons
The 2026 Sea Ray SLX 400 offers a blend of luxury, performance, and versatility, making it a standout choice for boating enthusiasts. Here are some of the pros and cons of this model:
Pros
Luxurious Design: The SLX 400 features a sleek, modern design with high-quality materials and finishes throughout, providing a premium onboard experience.
Spacious Layout: With ample seating and a well-thought-out cockpit, it comfortably accommodates family and friends for day cruises or longer outings.
Powerful Performance: Equipped with advanced engines, the SLX 400 delivers impressive speed and smooth handling on the water.
Advanced Technology: Includes a comprehensive helm with intuitive controls, touchscreen displays, and integrated navigation systems for ease of operation.
Versatility: Suitable for a variety of activities such as cruising, watersports, and entertaining, thanks to its adaptable features and accessories.
Comfort Amenities: Features like a well-appointed cabin, wet bar, and sun pads enhance comfort and convenience during trips.
Cons
Price Point: As a luxury model, the SLX 400 comes with a higher price tag that may be a consideration for budget-conscious buyers.
Size Constraints: While spacious, the 40-foot length may limit maneuverability in very tight docking situations compared to smaller boats.
Fuel Consumption: Powerful engines and performance capabilities can lead to higher fuel usage, which might impact operating costs.
Maintenance: The advanced technology and premium materials may require specialized maintenance and care to keep the boat in optimal condition.
Made For
The 2026 Sea Ray SLX 400 is designed for boating enthusiasts who seek a perfect blend of luxury, performance, and versatility. Ideal for families, friends, and social gatherings, it caters to those who enjoy comfortable cruising, watersports, and entertaining on the water. With its spacious layout, advanced technology, and premium features, the SLX 400 is perfect for individuals and groups looking to elevate their boating experience with style and ease.
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| $950,100 | $612,671 | $511,366 | $395,000 | $376,222 | $290,576 |
| Afton | Afton | Afton | Afton | Afton | Afton |
| 40' | 32' | 31' | 40' | 52' | 28' |
| 4' | - | - | - | - | - |
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Meet the Broker
Address
Boat Location
Contact MarineMax Grand Lake about 2026 Sea Ray SLX 400
Monkey Island, Oklahoma, 74331
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