2021 Sea Ray SLX 310 Sold Boat in Seattle, WA 98109 US
SLX 310
2 Engines (2x MerCruiser)
31.5 feet
Gas
Fiberglass/Reinforced
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2021 Sea Ray SLX 310 | |||||
|---|---|---|---|---|---|
| Price | $274,900 | $278,886 | $263,336 | $259,855 | $254,330 |
| Location | Seattle | Bellevue | Seattle | Seattle | Bellevue |
| Nominal Length | 32' | 28' | 28' | 31' | 26' |
| Draft | 3' | - | - | - | - |
| Engine Make | MerCruiser | - | MERCRUISER | MERCRUISER | - |
| Total Engine Power | 300 hp | - | 350 hp | 300 hp | - |
| Days on Market | 583 | 65 | 248 | 317 | 65 |
| Get in touch |
Other Sea Ray SLX 310 boats for sale in Washington, United States
Other Sea Ray boats for sale in Washington, United States
Why buy new when you can purchase this like new, 2021 Sea Ray 310 SLX with Twin Mercruiser 6.2L MPI Engines (ONLY 80 hours on them) with AXIUS Bravo III outdrives that have the joystick docking system. This boat has always been used in fresh water on Lake Washington and kept on a boat lift, until it was recently listed and is now moored in a covered slip on Lake Union, which the slip is transferable to the new owner!
Has a transferable extended warranty that goes until July 2029, you don't see many used boats with that available on them!
The Hardtop has a sunroof along with an electric extended sunshade. Spacious seating throughout and an enclosed head with a vacuflush head along with a sink. This is a great boat for watersports as well.
Some of the Highlights on this 2021 Sea Ray 310 SLX;
- Joystick docking with Skyhook, Auto Heading and more
- Dual Digital Dash Simrad 12" MFD's with GPS/Chartplotter/Sonar (Factory Option $6,192)
- Fiberglass Hardtop with Canvas Sunroof (Hardtop Factory Option $6,923, Opening canvas section Factory Option $4,615))
- Extended Electric Sunshade (Factory Option $8,846)
- Automated Submersible Swim Platform (Factory Option $8,154)
- Electric BBQ in Cockpit (Factory Option $2,535)
- Premier Audio Upgrade (Factory Option $3,846)
If you're looking for a great, large bow rider and don't want to buy new, here it is! Save thousands over new as well on a boat with only 80 hours on it! Don't let this 2021 Sea Ray 310 SLX get away, act now and get out boating!
We have the Best Selection of used Sea Ray Cruisers/Sedans 26' - 56' in the Seattle area by any Brokerage Company but have sold many lately and are in need of more quality listings like this boat! Please contact the LISTING BROKER to discuss listing your boat or to find out about others coming in soon!
Located offsite at a secure marina, please contact the LISTING BROKER on his cell phone to set up an appointment to see this 2021 Sea Ray 310 SLX.
- Dual Digital Dash 12" Simrad MFD w/ GPS/Chartplotter/Sonar
- Joystick Docking system with Sky Hook, Auto Heading and more
- Windlass Anchor System with Anchor, Chain and Rode
- Bow and Cockpit Covers
- Enclosed Head with Vacuflush head and sink
- Cockpit Electric BBQ
- Cockpit Refrigerator
- Cockpit Removable Infinity Woven Vinyl Flooring
- Premium Fusion Stereo System
- Electric Engine Compartment Hatch
- 30 amp Shore Power
- Battery Charger Battery Bank - 6
- Transom Shower
- Fire Suppression System
- Automated Submersible Swim Platform ($8,154)
- Blue LED Lighting Package ($2,000)
- Blue Thru Hull Under Water Lights ($1,462)
- Bow Filler Cushion ($911)
- Bow Side Table - Fiberglass ($769)
- Cockpit Cover w/ Tonneau Cover ($1,385)
- Cockpit Refrigerator ($1,743)
- Cockpit Removable Table - Fiberglass w/ Teak Overlay ($792)
- Docking Lights ($462)
- Extended Electric Sunshade ($8,846)
- Flag Pole and Base - U.S. Flag ($277)
- Grill - Electric BBQ in Cockpit ($2,535) - which will work while out boating!
- Hardtop, Fiberglass w/ Lights ($6,923)
- Helm - Stainless Steel Foot Rest w/ Rubber Inserts ($357)
- Infinity Woven Vinyl Cockpit Flooring ($1,231)
- Inverter - 12v to 120v/60 cycle ($3,538)
- Opening Canvas Section in Fiberglass Hardtop ($4,615)
- SeaDek on Swim Platform ($1,031)
- Shore Power Package w/ Converter and Cord ($3,077)
- Simrad Select Response 12" Dual Display upgrade ($6,192)
- Stereo, Premier Audio Upgrade ($3,846)
- Three Zone Gelcoat ($3,077)
- Water Heater - 6 Gallons ($1,506)
Any and all personal property is excluded from the sale of the vessel unless specifically listed and included in the listing specifications reference above. Personal property may be all equipment or gear that is not permanently attached to the vessel including but not limited to: artwork, entertainment equipment, fishing equipment, Direct TV Receivers, recreational equipment, tools, and personal appliances. Pictures may depict owners personal property and are not meant to convey these items are included in the sale of the vessel unless specifically listed herein.
Irwin Yacht Sales 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.
For more information or to schedule an appointment please contact the Listing Broker:
Jon Heisel - Assisting Boaters Since 1989 and a Lifelong Boater too!
Cell: 425-359-5341
Email: jon@irwinyachtsales.com
Price History
| Date | Event | Price |
|---|---|---|
| 6/28/25 | No change | $279,000 |
| 6/8/25 | Price decreased | $274,900(-1.5%) |
Sea Ray SLX 310: BoatTEST Review
Overview
The C-Ray SLX310 is a premium model from C-Ray, blending luxury features with advanced technology. This boat is designed to offer both comfort and performance, making it suitable for a variety of recreational boating activities. Our evaluation includes a detailed inspection of its features and a comprehensive performance test.
Exterior Design and Deck Features
The SLX310 features a well-thought-out exterior with a spacious layout. The swim platform area provides 1 foot 1 inch of decking between the outboard well and the transom, creating ample space between the two swim platforms, which measure 4 feet fore and aft. The decking is covered with soft C-Deck non-skid material to enhance traction. Multiple water access points include a fold-out swim step equipped with a sensor for operator alert, ideal for diving or towing sports, and a traditional reboarding ladder certified by the NMMA for safety standards. The sun pad measures 3 feet 2 inches by 5 feet 4 inches and includes a five-position adjustable backrest, storage with built-in dividers beneath, and convenient cup holders integrated into the armrests. Stereo controls and a 12-volt charging station are embedded in the port armrest. The walkthrough from the swim platform rises by a 10-inch step featuring a hatch for wet gear storage and a freshwater shower. The hull houses 12-volt DC switches, a 110-volt battery charger, and a boarding step. The power tower, constructed from aluminum, serves as a high tow point for wakeboarders and supports an electrically actuated bimini shade that lowers 1 foot 8 inches without obstructing the driver's view. A hardtop option is also available.
Cockpit and Helm Station
The cockpit is designed for socializing and functionality, featuring L-shaped seating around a standard table that comfortably accommodates six guests. Upholstery in an earth-tone mocha color is enhanced with diamond stitching for a refined appearance. Storage is abundant, including under-seat compartments, a corner bolster storage area, and a glove box. The floor includes quick-dry pull-out mats and drainage for easy maintenance. The transom sun pad lifts hydraulically to reveal access to the battery pack and other mechanical components such as the engine steering pump and house batteries. A wet bar to starboard includes a sink, grill, storage cabinets, and a fridge/freezer compartment. Forward of the wet bar is an additional cozy seat. The helm station is equipped with dual 9-inch Simrad displays integrated with Mercury Digital Vessel View, offering chart plotting, depth sounding, water temperature, and fish finding capabilities. The helm features a tilt steering wheel, digital push-button start, and conveniently placed ignition keys outside the knee-strike zone. Controls include standard trim tabs, Mercury DTS spinnaker control, and optional joystick and active trim systems, which enhance handling and ease of operation. Visibility from the helm is excellent, aided by a windshield wiper and a low-glare dark vinyl dash insert. The helm seat and companion seat are upholstered with premium materials, include diamond stitching, and offer practical features such as flip-up bolsters, cup holders, grab handles, and swivel capability for the companion seat to engage with the cockpit area. Additional storage includes a closed cubby, an open tray with rubber mat, angled footrests, and an in-floor locker with a sliding drawer.
Private Accommodations and Head
The port console houses a well-appointed head compartment featuring a port light for ventilation, a stainless steel sink, a grab handle, and a vacuum flush toilet with a 20-gallon holding tank. The head is designed for convenience and comfort, complementing the boat’s overall luxurious feel.
Bow Seating and Storage
The bow area offers nearly a full circle of well-padded seating with a standard side-mounted table, with an option for a second table to starboard to accommodate larger gatherings. Two optional filler cushions can convert the seating into a large sun pad. The seats include padded armrests that fold up and down, grab rails, cup holders, and integrated speakers. Storage compartments are accessible beneath the seats, including a large compartment under the starboard seat that extends beneath the helm. The center seat cushion lifts to reveal a step and a hatch providing access to the anchor rode locker, which contains the windlass with remote operation, anchor sprayer, spotlight, and cleat. A beach boarding ladder can also be installed in this area.
Power and Performance
The SLX310 measures 33 feet 10 inches overall with a beam of 10 feet 2 inches and a dry weight of 10,335 pounds. Our test boat, with 50% fuel, two people, and gear, had an estimated test weight of 11,229 pounds. Powered by twin 300-horsepower Mercury Verado outboards, the boat achieved a top speed of 51.3 miles per hour at 5,500 RPM. The most efficient cruising speed was 35.8 miles per hour at 4,000 RPM, with a fuel consumption of 21.5 gallons per hour, yielding a range of approximately 237 statute miles while maintaining a 10% fuel reserve. The SLX310 planes quickly in 4.8 seconds and features SeaRay’s dynamic running surface triangular plates at the stern, which can be manually or automatically adjusted to optimize performance. The ride quality is solid and smooth, with a 21-degree deadrise that cushions impacts in choppy conditions. The boat’s high freeboard helps keep passengers dry, and it responds predictably during high-speed maneuvers. The joystick option greatly enhances precision during docking and low-speed handling.
Conclusion
The C-Ray SLX310 demonstrates a strong attention to detail, combining luxury, technology, and performance in a well-rounded package. Its user-friendly features, including advanced digital controls and thoughtful design elements, make it accessible to a wide range of boaters. The boat’s solid ride, responsive handling, and comprehensive amenities ensure it is well-equipped for enjoyable days on the water.
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Boat Location
Contact Irwin Yacht Sales - Seattle about 2021 Sea Ray SLX 310
1001 Fairview Ave North, Suite 1200, Seattle, WA, 98109





























































































