When you think of luxury day boating, few names carry the prestige, craftsmanship, and innovation of Cobalt Boats. Known for blending performance with comfort, Cobalt has been setting the standard for high-end bowriders and day boats for decades.
Now, at the top of the R Series, stands the Cobalt R31 Outboard—a boat that redefines what it means to entertain, cruise, and explore the water in style.
Offered exclusively through Strong’s Marine, Long Island’s authorized Cobalt dealer, the R31 Outboard is the ultimate choice for boaters who want generous space, thoughtful amenities, and modern performance with the reliability of outboard power. Whether you’re a lifelong boater upgrading to your next vessel or new to the Cobalt family, the R31 is a model that deserves serious attention.
Cobalt R31 Outboard: An Overview
At 31 feet, the Cobalt R31 Outboard is the largest in the acclaimed R Series lineup. It takes everything boaters love about the smaller R Series models—smooth rides, luxury finishes, family-friendly layouts—and elevates them with more space, more power, and more versatility.
Q: What’s the length of the Cobalt R31 Outboard?
A: The R31 has an LOA (length overall) of 32’ 8”, giving you plenty of space without being overwhelming to handle.
Q: How wide the Cobalt R31 Outboard?
A: The beam is 9’ 10”, offering excellent stability and a roomy cockpit layout.
Q: How much fuel does the R31 Outboard hold?
A: The R31 carries 160 gallons of fuel, giving you the range you need for full-day cruising and weekend getaways.
Q: How many people can the Cobalt 31 Outboard hold?
A: The Cobalt R31 Outboard is yacht certified, which means there’s no strict passenger limit—it’s designed for safe, comfortable entertaining with family and friends.
Q: Does the Cobalt R31 Outboard have a head?
A: Yes, the R31 comes with a fully enclosed head compartment, making longer trips more convenient.
Core Highlights:
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Twin Outboards: Efficient and powerful, designed for ease of handling and lower maintenance compared to stern drives.
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Expansive Cockpit: A spacious, open layout with convertible seating that makes entertaining a breeze.
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Cobalt Swim Step: A patented fold-down swim platform that makes getting in and out of the water safe and easy.
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Premium Craftsmanship: From stainless steel fixtures to handcrafted upholstery, every detail reflects Cobalt’s luxury DNA.
The R31 isn’t just bigger—it’s smarter, with features designed to maximize every inch of space on board.
Designed for Entertaining
The Cobalt R31 Outboard is a boat built for memories. When you step aboard, you’re immediately struck by the thoughtful seating arrangements and social zones. The wraparound cockpit lounge provides plenty of room for guests, while adjustable backrests allow you to configure the space for conversation, dining, or sunbathing.
The cockpit galley, complete with sink and optional refrigerator, makes serving food and drinks easy without stepping below deck. For Long Island boaters who love hosting dock-and-dine evenings or sandbar raft-ups, these features make the R31 the ideal luxury entertaining boat.
Features & Innovations
Arch with Hard Top
This premium hard top features a fixed tinted glass portal, an auto-actuated anchor light, and LED RGB interior accent lighting. It also accommodates optional upgrades, including an electric awning and the Sandbar speaker system, creating the perfect combination of style, functionality, and entertainment.
Sunpad Expandable Lounge
The redesigned sunpad expands into a full lounge position, offering maximum comfort without compromising space. There’s still plenty of room to move freely across the large swim platform, making it perfect for relaxing or entertaining on the water.
Side Entry Step
Boarding has never been easier. The structurally reinforced starboard side entry step features stainless steel and rubber treads to provide a secure, no-slip grip—even in wet conditions—ensuring safe and effortless dockside access.
Prep Galley
The compact prep galley is perfectly sized for preparing an afternoon snack or light meal. It features an inset walnut charcuterie board, a tilting storage compartment, and an optional refrigerator drawer, combining style and convenience in a functional space.
Programmable LED Lighting
The LED accent lighting system has been upgraded for full customization. Using the Garmin touchscreen controls, you can select from a wide range of colors and dynamic patterns, creating the perfect ambiance for any mood or occasion on board.
Performance You Can Trust
Of course, luxury is only part of the equation. The Cobalt R31 Outboard delivers serious performance on the water. Equipped with twin Yamaha or Mercury outboards, this boat offers responsive handling, excellent fuel efficiency, and the kind of reliability today’s boaters demand.
Key performance features include:
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Deep-V Hull: Slices through chop for a smoother ride, ideal for Long Island Sound or open Atlantic runs.
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Joystick Docking: Optional joystick controls make tight slips and busy marinas stress-free.
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Trim Assist & Digital Controls: Modern systems give you confidence and control in all conditions.
For families and seasoned boaters alike, the R31 combines the sporty performance of a bowrider with the stability of a cruiser.
Why Long Island Boaters will Love the R31
Boating on Long Island is unique. From cruising the North Fork wine country to anchoring at beaches, local boaters want a boat that can do it all. The Cobalt R31 Outboard checks every box:
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Day Cruising: Plenty of space for friends and family.
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Entertaining: An open cockpit designed to host.
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Watersports: Enough power for tubing, skiing, or wakeboarding.
This versatility is exactly why the R31 is such a standout choice for Long Island boaters who value both comfort and performance.
The Strong’s Marine Difference
When investing in a Cobalt R31 Outboard, choosing the right dealer is just as important as choosing the right boat. At Strong’s Marine, we’ve been helping Long Island families get on the water since 1945. As a fourth-generation, family-owned dealership, we don’t just sell boats—we build relationships.
Here’s what sets Strong’s apart:
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Trusted Cobalt Dealer: Decades of experience representing Cobalt means we know these boats inside and out.
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Award-Winning Marinas: Our locations in Mattituck, Southampton, Fire Island, and beyond offer full-service dockage and amenities.
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Elite Service Team: From routine maintenance to upgrades, our factory-certified technicians keep your boat running like new.
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Community Focus: We’re not just a dealership—we’re part of the Long Island boating community, hosting events, showcases, and dockside gatherings.
When you buy your Cobalt R31 Outboard from Strong’s Marine, you’re joining a legacy of boating excellence.
Comparing the Cobalt R31 Outboard to Other Models
Versus Smaller R Models (R30, R8, R6): The R31 offers more cockpit space, enhanced seating, and premium features. It’s ideal for those who want a luxury day boat designed for entertaining and watersports without feeling cramped.
Versus Larger Cruisers: While larger cruisers offer more enclosed living space, the R31 focuses on open-air comfort, social zones, and easy access to the water. Its design maximizes room for guests, storage, and movement on deck, appealing to families and friends who love day boating and dockside gatherings.
Versus Stern Drive Models: Outboard power provides better efficiency, easier maintenance, and more usable cockpit space, giving modern boaters the performance and reliability they expect.
The R31 Outboard hits a sweet spot: spacious enough for entertaining and watersports, sporty enough for fun on the water, and designed for effortless handling in Long Island marinas and beyond.
Who Is the Cobalt R31 Outboard For?
This model isn’t for everyone—and that’s what makes it special. The R31 Outboard is best suited for:
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Families who boat together: Spacious layout and cabin comfort make it ideal for groups.
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Entertainers: If you love hosting friends on the water, the R31 is unmatched.
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Experienced boaters upgrading: Those moving up from 24–28 ft boats often find the R31 to be the perfect next step.
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Luxury seekers: Boaters who value craftsmanship, comfort, and premium features will feel at home aboard the R31.
See the R31 Outboard for Yourself
Reading about the Cobalt R31 Outboard is one thing—stepping aboard is another. Photos and specs can’t capture the way this boat feels, the quality of its finishes, or the way it moves across the water.
That’s why Strong’s Marine invites you to experience it firsthand. Our team will walk you through every feature, answer your questions, and help you determine if the R31 Outboard is the right boat for your lifestyle.
Schedule Your Private Tour with Strong’s Marine
The Cobalt R31 Outboard for sale at Strong’s Marine isn’t just another boat—it’s a gateway to unforgettable summers, family memories, and effortless entertaining. Whether you’re cruising the Sound, heading out to Fire Island, or enjoying dockside sunsets in the Hamptons, this yacht-quality day boat is built to deliver.
👉 Contact Strong’s Marine today to schedule your private showing of the Cobalt R31 Outboard. Discover why Long Island’s most discerning boaters trust Strong’s—and why the R31 Outboard could be the best boat you’ve ever owned.
Strong's Marine has been a family owned business since 1945. In 2013, Strong's Marine acquired the marina in Mattituck, now known as Strong's Water Club & Resort. Strong's Marine has four locations in Mattituck including the flagship location at Mattituck Bay, Strong's Yacht Center, Strong's Main Road and of course the Strong's Water Club & Resort. You can find Strong's Marine across Long Island at our numerous locations including Port Washington, Freeport, Southampton, Mattituck, and Cutchogue
