2021 Sea Ray SLX 310 OB Sold Boat in Saint Petersburg, FL 33707 US
Built in 2021
SLX 310 OB
2 Engines (2x MERCURY)
31 feet
Gas
Fiberglass/Reinforced
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 2021 Sea Ray SLX 310 OB | ||||||
|---|---|---|---|---|---|---|
| Price | $255,162 | $250,892 | $249,900 | $249,900 | $249,900 | $244,500 |
| Location | Saint Petersburg | Saint Petersburg | Saint Petersburg | Fort Lauderdale | Shalimar | Jupiter |
| Nominal Length | 31' | 32' | 29' | 32' | 30' | 28' |
| Engine Make | MERCURY | MERCURY | Mercury | Mercury | Yamaha | MERCURY |
| Total Engine Power | 300 hp | 300 hp | 350 hp | 350 hp | 600 hp | 250 hp |
| Days on Market | 315 | 51 | 25 | 204 | 178 | 6 |
| Get in touch |
Other Sea Ray boats for sale in Florida, United States
2021 Sea Ray SLX 310 OB
Experience the thrill of luxury on the water with the 2021 Sea Ray SLX 310 OB, a vessel that embodies performance and style. With a breathtaking design and cutting-edge technology, this boat offers the perfect escape for unforgettable weekends on the water.
Power and Performance
Equipped with two powerful Mercury WHT 300 JPO V8 AMS engines, this boat boasts a remarkable total engine power of 600 hp, delivering exhilarating speed and maneuverability. Whether you're slicing through the waves or cruising at your leisure, the SLX 310 OB promises an unforgettable boating experience.
Craftsmanship and Comfort
The Sea Ray SLX 310 OB is a masterpiece of craftsmanship, featuring a luxurious cockpit and refined interior that seamlessly blend comfort with modern elegance. Ideal for entertaining family and friends, this boat is outfitted with premium amenities and ample space to relax in style.
Exclusive Benefits with MarineMax
When you purchase from MarineMax in St. Petersburg, FL, enjoy a full fuel tank and a Go Boating Gear kit complete with safety essentials. Experience no-hassle financing and expert guidance with classes designed to ensure that you make the most of your new vessel.
Join the MarineMax family and unlock endless fun with events, unforgettable Getaways! trips, and competitive trade evaluations. The 2021 Sea Ray SLX 310 OB is not just a boat; it's your gateway to adventure.
At MarineMax, we are dedicated to making boating easy and enjoyable. When you purchase a boat from us, you'll benefit from our comprehensive support, including:
- A full fuel tank upon purchase.
- A Go Boating Gear kit containing essential items like personal and throwable flotation devices, flares and a horn for signaling, a fire extinguisher, dock lines, an anchor, a boat hook, cleaning supplies and more, so you're fully equipped and ready to enjoy your new boat!
- Hassle-free financing and insurance options.
- Exceptional service with convenient online scheduling.
- Expert guidance through various boating classes and seminars.
- Access to our exclusive Getaways!® trips and customer events, connecting you with a community of fellow boaters.
Trades considered.
Visit MarineMax St. Petersburg at 6810 Gulfport Blvd S St. Petersburg, FL 33707 or call us at (727)343-6520 to learn more and schedule your personal showing of this boat!
Price History
| Date | Event | Price |
|---|---|---|
| 3/10/26 | Price increased | $255,162(+1.9%) |
| 11/1/25 | Initial price | $250,521 |
Videos from MarineMax St. Petersburg on this 2021 Sea Ray SLX 310 OB
2021 Sea Ray SLX 310 OB Video Tours
Sea Ray SLX 310 OB: BoatTEST Review
Overview
The Sea Ray SLX310OB is a luxury bow rider that builds upon the established stern drive version by incorporating outboard power, which allows for increased space utilization. This 31-foot, 6-inch vessel features a beam of 10 feet, 2 inches, and a draft of 32 inches. Designed with upscale appointments and spacious accommodations, the SLX310OB offers a blend of performance, comfort, and premium finishes that justify its reputation within Sea Ray's SLX lineup.
Helm and Controls
The helm of the SLX310OB exemplifies Sea Ray's commitment to quality with a glass dash and an upholstered console. It is equipped with a 12-inch Medallion display positioned ahead of the steering wheel and a 7-inch display to the left, complemented by a 4-inch color SmartCraft display on the lower right. These interfaces provide selectable engine and system information, all controllable via touchscreen or a joystick on the panel. The lower panel includes lighting controls with a graphic boat representation for intuitive operation. To starboard, digital engine controls and a dynamic trim system are situated just ahead of Mercury’s Joystick Piloting for Outboards (JPO), which facilitates precise maneuvering around docks. The helm seat is double-wide with individual flip-up bolsters, enhancing comfort and visibility for the operator.
Performance and Handling
Powered by twin 350 horsepower Mercury Verado outboards with 19-pitch Revolution props, the SLX310OB achieved a top speed of 53.4 miles per hour at 5,900 rpm during testing. Its best economic cruise was recorded at 31.9 miles per hour at 4,000 rpm, consuming 20.1 gallons per hour, which translates to approximately 1.6 miles per gallon and a range of 250 statute miles while maintaining a 10% fuel reserve from its 175-gallon capacity. The boat accelerated to planing speed in 4.7 seconds, with a bow rise of 7 degrees settling to a 5-degree bow-high cruising attitude. Further acceleration milestones included reaching 20 mph in 7.2 seconds and surpassing 30 mph in 10.5 seconds. Handling tests revealed a tight turning radius of 17 degrees with the helm hard over, producing a pronounced wall of water indicative of strong tracking and minimal sliding. The vessel demonstrates minimal chine walking and maintains composure even when encountering wakes, providing a smooth ride. Docking maneuvers were notably effortless using Mercury’s joystick piloting system, which offered immediate response and balanced control between bow and stern.
Exterior Features and Deck Layout
The SLX310OB’s exterior is thoughtfully designed for both utility and luxury. The twin outboard engines are installed to allow full walkthrough access to the swim platform, which extends to each side. A flip-out swim boarding seat on the port side enhances boarding comfort compared to a traditional ladder. Forward of the platform is a spacious lounger measuring 5 feet 4 inches across, convertible into regular seating with five adjustable positions. Premium two-tone upholstery with diamond-pattern stitching accentuates the upscale aesthetic. Underneath the seating areas, there is extensive self-draining storage with compartmentalization and hangers for organization, secured by robust hinges and support struts. The cockpit features a self-draining storage compartment at the entry with a turn-and-lock latch and gasket sealing. To starboard, an engine flush connection and freshwater shower are conveniently located. The walkthrough to the bow is angled to maximize cockpit space and includes a built-in self-draining cooler in the step. Wraparound seating to port with a standard fiberglass pedestal table and opposing seating across the cockpit provide ample social space. The observer seat swivels to join the main seating area, and storage is abundant, including deck compartments and integrated carry-on cooler space. The wet bar to starboard includes an electric grill under a solid-surface lid, a freshwater sink, trash receptacle, and refrigerator, all surrounded by padded bolsters and stainless-steel grab rails.
Interior Amenities and Bow Area
The port console houses a covered storage compartment with a padded recessed area for personal items, secured by a stainless rail with integrated beverage holders. Below, a padded bolster wraps the console, behind which is a porcelain vacuum-flush head, additional storage, and a stainless steel sink recessed into a solid-surface countertop. A hull-side window with an opening port light provides ventilation and natural light. Overhead, a standard hardtop with a manually opening sunroof offers shade, complemented by an electrically actuated SureShade awning that extends further aft. The bow seating area is expansive and comfortable, featuring double-wide forward-facing seats with padded bolsters and flip-down armrests. Recessed aft-facing speakers and stainless grab rails enhance both comfort and safety. A pedestal base accommodates an optional bow table, and storage is accessible beneath the seats, behind the starboard seatback, and under a deck hatch. The forward-most hatch conceals an anchor windlass with a cleat for securing the anchor rode and a remote control positioned to port. Additional features include navigation lights, 8-inch cleats, and an optional freshwater shower, underscoring the vessel’s utility and luxury.
Conclusion
The Sea Ray SLX310OB successfully combines the spaciousness and versatility of a large bow rider with the refined luxury and advanced features characteristic of the SLX lineup. Its twin outboard powertrain delivers strong performance and responsive handling, while the thoughtfully designed helm, cockpit, and bow areas provide comfort and convenience for both operators and guests. With premium materials, abundant storage, and practical amenities, the SLX310OB stands out as a compelling option for those seeking a high-end, performance-oriented bow rider.
Overview from around the web 2021 Sea Ray SLX 310 OB
Customers praise the 2021 Sea Ray SLX 310 OB for its sleek design, powerful outboard performance, and luxurious comfort
Many highlight the spacious and well-appointed cockpit, perfect for entertaining family and friends. The boat’s smooth handling and impressive speed make it a favorite for both cruising and water sports. Users also appreciate the quality craftsmanship and attention to detail, noting that the SLX 310 OB offers a premium boating experience with excellent storage options and advanced features. Overall, owners commend this model for blending style, functionality, and performance seamlessly.
The Biggest Pros and Cons
The 2021 Sea Ray SLX 310 OB offers a blend of performance, luxury, and versatility, making it a popular choice among boating enthusiasts. Here are some pros and cons to consider:
Pros
Powerful Outboard Performance: Equipped with dependable outboard engines, the SLX 310 OB delivers strong acceleration and impressive top speeds, suitable for both leisurely cruises and watersports.
Spacious and Comfortable Layout: The boat features ample seating with plush upholstery, including a versatile sun lounge and convertible seating arrangements, ensuring comfort for family and guests.
Modern Helm and Technology: A well-designed helm with advanced digital displays, intuitive controls, and excellent visibility enhances the driving experience.
Quality Build and Finish: Sea Ray is known for its craftsmanship, and the SLX 310 OB boasts high-quality materials and attention to detail throughout.
Versatility: Ideal for a range of activities, from day cruising and entertaining to fishing and watersports, thanks to its adaptable design and ample storage.
Cons
Fuel Consumption: The powerful outboard engines can lead to higher fuel consumption, which might be a consideration for longer trips or frequent use.
Price Point: Positioned as a premium boat, the SLX 310 OB comes with a higher price tag, which may be a factor for budget-conscious buyers.
Limited Cabin Space: While offering some storage and a head compartment, the boat lacks extensive overnight accommodations, making it less suitable for extended stays.
Weight and Trailering: Due to its size and build, trailering this boat may require a heavy-duty vehicle and can be more challenging compared to smaller models.
Made For
The 2021 Sea Ray SLX 310 OB is perfect for boating enthusiasts who seek a versatile and luxurious open-bow boat. It’s ideal for families and groups who enjoy water sports, cruising, and entertaining, offering spacious seating, premium comfort, and advanced technology. Whether you’re planning day trips on the water or social gatherings with friends, this boat delivers exceptional performance and style for a memorable boating experience.
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Boat Location
Contact MarineMax St. Petersburg about 2021 Sea Ray SLX 310 OB
St Petersburg, FL, 33707
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