2018 Sea Ray SLX 400 Boat in Kirkland, WA 98033 US
Built in 2018
SLX 400
2 Engines (2x MerCruiser)
40 feet
Gas
Fiberglass/Reinforced
WS Yacht Brokers is proud to present this impeccable 2018 Sea Ray SLX 400. An absolute Best in Class contender for one of the largest and most comfortable and capable day boats available with extended cruising ability and every conceivable convenience you can imagine. Whether you are relaxing or entertaining in the bay or escaping up to the islands for the weekend, this boat has you covered in high style.
This boat is the pinnacle of luxury and convenience. With less than 15 hours on brand new factory warrantied 8.2 Mag ECT engines with total 760 hp and brand new Bravo 3x out drives, you can't get any closer to a new boat at less than half the price. (The boat has approximately 484 hours total)
Ordered and purchased brand new here in Seattle from Lake Union Sea Ray/Union Marine and has been pampered and protected ever since in a covered freshwater slip here in Yarrow Bay, Kirkland. It has been meticulously maintained and regularly dealer serviced. This is bay far the cleanest and most fastidiously well kept boat that I have seen in a long time. I am certain there is not find a cleaner SLX on the market anywhere! It is also priced very agressively as a virtually identical boat to the later model years from 2019 to 2026!
Loaded with every conceivable option imaginable, from the upgraded dual SIMRAD helm displays with Mercury Vessel View, large hydraulic immersible swim step, Mercury Axius Joystick control and piloting package with Skyhook and Autopilot, Generator/Inverter package, Dual built in outdoor grills, power fold down starboard side swim terrace/beach club, LED Undewater lights, and a complete custom added sunbrella canvas and eisenglass enclosure to protect the boat and keep out the elements. And while hard to see or appreciate in the photos, this boat has an incredibly spacious, full height interior below decks featuring a cozy king size mid berth and a convertible front v-berth/dinette area, along with a stand up full size show and comfortable head for you and your guests. This boat is a must see. New, an SLX fully optioned like this same boat would run you well over twice this price!
Winner of the NMMA Innovation Award, the SLX 400 combines peak performance, superior comfort, incredible versatility and style, and state-of-the-art technology. The result is more than a boat - it's a premium socializing environment. Every facet has been thoughtfully designed for maximum enjoyment, from the inviting cockpit and cabin, to the sleek digital helm, to the innovative new convertible swim terrace. All so that you and your friends can experience richer, fuller days on the water. Because the ultimate talent of an entertainer is making every guest feel right at home.
- Bow Eye & Stern Eyes - Stainless Steel (Bow Eye w/ Stainless Steel Scuff Plate)
- Cleats, (6) Custom Sea Ray 10" Thru-Bolted - Stainless Steel & (2) 8" Pop-up - Stainless Steel
- Deck Fill Plates, Stainless Steel
- Drain Plug, Brass-Threaded - Garboard
- Fiberglass Stringer System w/ Fwd. Interior Liner
- Gel Coat, Arctic White
- Hull Windows, Acrylic
- Light, Stern
- Lights, Navigation - Stainless Steel w/ Motorized Mast Light
- Resin, High-Performance Vinyl Ester
- Rub Rail, Black PVC w/Stainless Steel Insert
- Ski Tow Eye, Stainless-Steel
- Storage, Fwd Deck w/ Hatch
- Swim Platform, Integral
- Tapered Boot Stripe (Gelcoat)
- Terrace, Power Actuated, Fold Down - Starboard Side
- Thru-Hull Fittings, Stainless Steel
- Vent System, Engine Compartment - Integral
- Windlass, Rope /Chain w/ Galvanized Anchor, Wash Down and Bow Controls (thru hull Installation)
- Windshield Wiper - Starboard
- Windshield, Tempered/Tinted Curved Glass w/ Stainless- Steel Frame, Port Side Walk-Thru & Stainless Steel Supports
- Acoustical Insulation Strategically Applied for Optimal Sound Absorption
- Engineered Fit & Finish of Components Helps Reduce Unwanted Noise & Vibration
- Proprietary Tuned Transom by Omni Products, Inc. Reduces Structural Vibration from Engine & Drive
- Strategically Placed Bulkheads Engineered to Block and Absorb Noise
- Vibration Dampening Material Laminated Throughout Hull, Deck & Liner for Enhanced Sound Deadening
- Meets Applicable USCG & ABYC Standards
- NMMA Certification
- Mercury Installation Quality Certification
- Beverage Holders - Stainless w/Rubber inserts w/ LED Lighting (29)
- Carpet Liner, Snap-In
- Cooler, Bow w/ Dedicated Storage
- Cooler, Cockpit w/ Dedicated Storage
- Cooler, Cockpit Wet Bar Storage
- Dash, Acrylic Skylight
- Deck Entry Access, Port and Starboard sides.
- Door, Bow Block-Off - Port Side - Acrylic w/ Stainless Steel Hardware
- Door, Cabin entry (Sliding and lockable) Fiberglass
- Floor Liner, Fiberglass w/ Direct Overboard Drainage
- Glove Box, Helm, Lockable
- Grab Handles - Stainless Steel w/ Leather Wrapped Grips
- Hardtop, Arctic White Fiberglass w/ Enclosed Ceiling & Courtesy Lights
- Hatch, Engine Compartment - Electrically Actuated
- Lighting, Courtesy - Stainless Steel
- Outlet, 120V GFI Protected
- Outlet, 12V Accessory (3)
- Stereo, Rockford Fosgate 12v AM/FM Cockpit Sound System w/ 10 Rockford Fosgate Speakers, Amplifiers,
- 12" Subwoofer, Transom & Helm Stereo Remotes
- Storage, Side Panels - Bow - Port & Stbd Tubs
- Storage, Bumper - Floor - Bow
- Storage, Shoes - Aft Cockpit
- Storage, Glove Box (Dry)
- Storage, Below ETS Aft Seat
- Storage, Below Port Side Seat
- Table, Teak Cockpit w/ Cover
- Vinyl, Marine Grade w/ Mildew & UV Protection
- Walk-Thru Transom (Stbd) w/ Door
- USB Stereo Controls (3)
- Wet Bar w/Solid-Surface Countertop, Stainless-Steel Sink, Faucet, Stainless-Steel Grab Handle, Storage Drawer, Utensil Storage,Refrigerator w/ Pull Out Drawers, Trash Receptacles & Storage Below
- Bow:
- U-Shaped Seating Forward w/ Fixed Cushions
- Large Tour Seating Facing Forward w/ Fixed Cushions & Arm Rest - Cockpit Social Area w/ Opposing Seating & Storage Below ETS Module
- Dual Bucket Seat (1) - Helm w, Slider, Adjustable Height, w/ Paddle Adjustment Levers, Flip-Up Thigh-Rise Bolster and Floor Footrest
- Seat, Dual Bucket-Companion; w/ 180° Swivel w/ Paddle Adjustment Levers and Flip Up Thigh Rise Bolster
- Transom Sungate Seating w/ 2 Drink Holders
- Air Conditioning/Heating, 120V/60 Cycle
- Audio Control Zone w/ 2 Speakers / Sound Bar & Remote
- Entrance Steps, Powder Coated Aluminum w/ Teak Overlay
- Hull Windows w/ Pleated Blinds & Tension System
- Refrigerator, In Cabin - Port
Aft Berth:
- Berth - Queen w/Mattress, Pillows, Sheets & Coordinated Spread
- Curtain, Privacy /Curtain
- Drink Holders (4)
- Sheet Set, Fitted (Neutral Color)
- Storage Cabinets & Lockers w/Shelves
Salon / V-Berth:
- Anchor / Windlass Access Hatch
- Ceiling Liner
- CO Monitor
- Drink Holders (6)
- Lights-Standard & Indirect
- Microwave, 120V/12V
- Opening Port Lights w/ Screens - Port & Starboard
- Outlet, 12 V Accessory
- Outlet, 120V GFI Protected
- Storage - Port Side Day Galley
- Table, Wood
- Trash Receptacle
- U-Shaped Seating (Convertible w/ Filler Cushions)
- w/ Fiberglass Liner and Filler Cushion Storage
Head:
- Enclosed Compartment w/ Lockable Door, Solid Surface Countertop, Molded Fiberglass Liner w/ Glass Sink, Faucet, Pull Out Sprayer, Clothes Hooks, Portlight w/ Screen, Wood Storage Shelf w/Mirrored Bulkhead & w/ Courtesy Light and Non Skid Floor Treatment
- Head, VacuFlush w/ 28- Gallon Holding Tank
- Power Vent, 12V
- Alarm, High-Water - Bilge & Cabin
- Alarms, Engine - Oil & Water (Audible)
- Cloud Connectivity for Vessel Monitoring and Diagnostics and Remote Updates
- Drink Holder
- Digital Dash w/ Dual 12" Raymarine gS series Navigation Displays
- Electronic Circuit 50 amp w/ Fuse Panel
- Empire Bus Switching
- Horn
- Joystick Control
- Parallel Battery Engine Start
- SmartCraft Digital Throttle & Shift w/Trim Switch & Ignition Cutout Switch (Binnacle Control w/All Engines)
- SmartCraft VesselView Display
- Steering, Power-Assisted
- Steering, Tilt Wheel
- Switch Panel w/Backlit Weatherproof Lighted Chrome Push Button Switches
- Tilt & Trim, Power
- Battery Charger/ Converter 120V /60 cycle
- Battery Switch, Single w/ Solenoid
- Battery Trays w/Mounts
- Galvanic Isolators
- Mercathode (2)
- Shore Power, 120V/60 Cycle - 30-Amp Service w/Inlet, 50' Cord & Converter, Galvanic Isolator & Main Distribution Panel (Also Available in 220V/50 Cycle)
- TV Inlet w/ TV Antenna / TV shore cord
- Evaporative Emissions Fuel System
- Fuel Lines, USCG - Type A-1
- Fuel Tank w/Anti-Siphon Valve & Electric Sending Unit
- Bilge Pump, 12V Automatic
- Bilge Pump, 12V Automatic High-Water (2) 1-Bilge 1-Cabin
- Blowers, 12V Bilge (2)
- Fire Suppression System - Automatic
- Gel-Coated Engine Compartment
- Insulated Engine Compartment
- Lighting -12V
- Oil Filter - Remote
- Propellers, Stainless Steel
- Variable Running Surface (Trim Tabs)
- Faucet - Wet Bar
- Pressure Water System w/12V Pump
- Pullout Sprayer - Head
- Pullout Sprayer - Transom
- Water Heater (6 Gallon)
- Water Tank (50 Gallon) w/Level Indicator and Water Filter System
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 |
|---|---|---|
| 7/1/26 | Initial price | $389,850 |
Sea Ray SLX 400: BoatTEST 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.
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 2018 Sea Ray SLX 400 | |||||
|---|---|---|---|---|---|
| $389,850 | $285,000 | $559,999 | $169,000 | $165,900 | $115,000 |
| Kirkland | Seattle | Seattle | Seattle | Seattle | Seattle |
| 40' | 31' | 40' | 36' | 25' | 28' |
| 4' | - | - | - | - | - |
| MerCruiser | MERCRUISER | mercruiser | Mercruiser | MERCRUISER | MERCRUISER |
| 380 hp | 300 hp | 430 hp | 350 hp | 350 hp | 350 hp |
| 4 | 248 | 19 | 6 | 474 | 302 |
Other Sea Ray SLX 400 boats for sale in Washington, United States
Other Sea Ray boats for sale in Washington, United States
Meet the Broker
Address
Boat Location
Contact W S Yacht Brokers - Seattle about 2018 Sea Ray SLX 400
2500 Westlake Ave N, Suite D, Seattle, WA, 98109
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