This 2015 Cobalt 336 (R35) represents the perfect balance of performance, luxury, and versatility — a flagship day cruiser with the power and refinement to handle serious water. Cobalt’s reputation for exceptional build quality is on full display here: deep-V hull design, flawless fit and finish, timeless styling, and a ride that feels as solid at 20 knots as it does at 50.
This particular 336 has been freshwater kept since new, stored under cover, and meticulously cared for. It has low hours on its twin Volvo Penta V8-430 CE engines paired with Volvo Ocean X DPS-B Duo-Prop drives, the most desirable and powerful configuration offered for this model. Joystick docking makes close-quarters maneuvering simple and precise, while the 860 horsepower powertrain delivers smooth cruising at 35–40 mph and exhilarating top speeds north of 55 mph. This is truly a captain’s boat — powerful, quiet, and confidence-inspiring.
Performance & Mechanical Highlights:
Twin Volvo Penta V8-430 CE engines (860 total HP)
Volvo Ocean X DPS-B Duo-Prop outdrives with stainless props
Volvo EVC with joystick docking system
Digital helm displays with full engine diagnostics and fuel flow data
Power steering, trim tabs, and power engine hatch lift
Five AGM batteries (3 house / 2 starting) with smart battery management
Shore power system with charger and breaker panel
Freshwater closed-cooling engines — excellent for longevity
This setup was engineered to deliver exceptional acceleration, quiet mid-range cruising, and easy handling at any speed. With joystick control, docking is stress-free — even single-handed.
Comfort, Layout & Accommodations:
The 336 is renowned for its social layout — designed to bring people together while still offering room to move. Forward, the open bow features wraparound seating with ergonomic backrests, creating a true conversation pit. Aft, the signature convertible sun lounge offers multiple positions, from upright bench seating to a fully flat sunbed overlooking the swim platform.
Open bow lounge with wraparound seating
Convertible aft sun pad with multiple positions
Enclosed head compartment with electric flush toilet, vanity sink & shower
Below-deck cabin with wraparound leather sofa that converts to berth (sleeps 2+)
Panoramic hull windows and overhead lighting
Wet bar station with stainless sink and refrigerator
Snap-in seagrass flooring in cockpit
Ample storage throughout
It’s an ideal layout for entertaining, day cruising, or overnight trips. The build quality is unmistakably Cobalt: solid hardware, hand-stitched upholstery, and a quiet, smooth ride even at speed.
Navigation & Audio Systems:
This boat is equipped with a Garmin Echomap 106sv touchscreen GPS/chartplotter for reliable and intuitive navigation. For entertainment, it features a Fusion 670 head unit paired with an JL Audio premium M6 system:
Garmin Echomap 106sv touchscreen GPS/chartplotter
Fusion 670 head unit with NMEA integration
Eight JL Audio M6 coaxial speakers with RGB LED lighting
Two 10″ JL Audio subwoofers with LED lighting
JL amplifiers with zone control
Integrated lighting control for audio zones
The sound system is clear, powerful, and fully integrated into the boat’s layout, creating a premium onboard experience whether at anchor or underway.
Deck & Hull:
LOA: 34′ 9″ | Beam: 10′ 7″ | Draft: 2′ 11″ | Deadrise: 22°
Extended swim platform with stainless ladder
Hot & cold transom shower
Transom door to cockpit
Stainless steel hardware throughout
Bow walk-through windshield
Cockpit arch / Bimini top
Anchor locker with windlass (all chain rode)
Full cockpit and bow covers
Ocean X corrosion-resistant outdrives
Stainless ski tow eye
Fender storage lockers and rope access points
The deep-V hull provides a confident, dry ride and handles big water exceptionally well. Cobalt’s construction is second to none — this is a hull designed to perform and last.
Ownership Notes:
This boat has been freshwater only, gently used, and always maintained to high standards. It has low engine hours, a robust AGM battery bank, and premium upgrades throughout. It has never been neglected, never run in saltwater, and is in excellent overall condition.
For those who know the Cobalt brand, this is the configuration everyone looks for: 430 HP Volvo Ocean X + Joystick, a Garmin navigation suite, and a JL/Fusion premium audio system. Whether your plans involve entertaining friends, cruising the Great Lakes, or weekend overnights at the marina — this 336 delivers.
Why This Boat Stands OutFreshwater since newLow hours — meticulously maintainedTop power package with joystick dockingPremium Garmin & JL Audio upgradesFive AGM battery system for extended on-the-water timeCobalt’s flagship 336/R35 platform — proven performance and luxury
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