2020 Sea Ray SLX 400 Sold Boat in Hampton Bays, NY 11946 US
SLX 400
2 Engines (2x MercCruiser)
39.5 feet
Gas
Fiberglass/Reinforced
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2020 Sea Ray SLX 400 | ||||||
|---|---|---|---|---|---|---|
| Price | $379,999 | $379,000 | $390,000 | $369,916 | $399,000 | $332,970 |
| Location | Hampton Bays | New Rochelle | Huntington | Amityville | Island Park | Southampton |
| Nominal Length | 40' | 40' | 41' | 33' | 38' | 29' |
| Draft | 4' | - | - | - | - | - |
| Engine Make | MercCruiser | MerCruiser | MERCURY | Yamaha | MerCruiser | Volvo V8-CE 5.3L |
| Total Engine Power | 430 hp | 430 hp | 350 hp | 300 hp | 380 hp | 350 hp |
| Days on Market | 472 | 191 | 42 | 70 | 765 | 359 |
| Get in touch |
Other Sea Ray SLX 400 boats for sale in New York, United States
Other Sea Ray boats for sale in New York, United States
2020 Sea Ray SLX 400 I/O - Twin MerCruiser 8.2 MAG HO SeaCore
This 2020 Sea Ray SLX 400 I/O is powered by twin MerCruiser 8.2 MAG HO SeaCore engines, delivering strong performance with enhanced corrosion protection. Designed as a luxury day boat, the SLX 400 offers expansive social zones throughout the bow, cockpit, and stern areas. Sea Ray's signature fold-down swim terrace enhances onboard space and accessibility at the waterline. Below deck, the cabin provides overnight accommodations along with a fully enclosed head.
With its wide beam, robust engine package, and Sea Ray build quality, the SLX 400 stands out as a premium entertainer and versatile cruiser!
Standard Features Include:
Twin MerCruiser 8.2 MAG HO Bravo Three X DTS SeaCore engines
Axius Joystick Piloting
Fold-down starboard-side swim terrace
Integrated hardtop with retractable SureShade
Convertible cockpit seating with teak cockpit table
Spacious bow lounge with filler cushion
Enclosed head with shower and vanity
Cabin with convertible berth and dedicated mid-berth
Air conditioning and cabin refrigerator
Generator
Dual digital throttle & shift controls
Dual Simrad or Raymarine multifunction displays (varies by install)
Windlass with stainless steel anchor
Wet bar with sink and storage
Fusion stereo system with remote and multiple zone control
LED lighting throughout
SeaDek swim platform
The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.
Price History
| Date | Event | Price |
|---|---|---|
| 10/20/25 | Price decreased | $379,999(-2.6%) |
| 6/28/25 | Initial price | $389,999 |
2020 Sea Ray SLX 400 Video Tours
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 2020 Sea Ray SLX 400
Customers praise the 2020 Sea Ray SLX 400 for its exceptional blend of luxury, performance, and innovative features
Many highlight the spacious and well-appointed cockpit, perfect for entertaining family and friends. The boat's smooth handling and powerful engines receive frequent compliments, making it ideal for both relaxing cruises and thrilling water sports. Additionally, users appreciate the high-quality craftsmanship and attention to detail throughout the vessel, noting that it offers a premium boating experience with comfort and style. Overall, the 2020 Sea Ray SLX 400 is celebrated for delivering versatility and elegance on the water.
The Biggest Pros and Cons
The 2020 Sea Ray SLX 400 offers a blend of luxury, performance, and versatility, making it a popular choice for boating enthusiasts. Here are some pros and cons to consider:
Pros
Luxurious Design: The SLX 400 features high-quality materials and stylish finishes, providing a comfortable and upscale environment.
Spacious Layout: With ample seating and smartly designed spaces, it accommodates family and friends with ease.
Powerful Performance: Equipped with robust engines, it delivers smooth and responsive handling on the water.
Advanced Technology: Includes modern navigation and entertainment systems for convenience and enjoyment.
Versatility: Suitable for various activities, from cruising and watersports to entertaining.
Cons
Price Point: The premium features and build quality come with a higher price tag, which may be a consideration for some buyers.
Fuel Consumption: Powerful engines can lead to higher fuel usage, impacting operating costs.
Size: While spacious, the boat's size may limit access to smaller docks or shallow waters.
Maintenance: Luxury boats often require meticulous upkeep to maintain their appearance and performance.
Made For
The 2020 Sea Ray SLX 400 is designed for boating enthusiasts who seek a perfect blend of luxury, performance, and versatility. Ideal for families, friends, and entertainers, this boat offers spacious seating, advanced technology, and powerful engines, making it perfect for day cruising, watersports, and social gatherings on the water. Whether you’re looking to relax in style or enjoy high-performance boating, the SLX 400 caters to those who appreciate quality craftsmanship and comfort.
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Boat Location
Contact Modern Yachts about 2020 Sea Ray SLX 400
33 Library Ave, Westhampton Beach, NY, 11978













































