2005 Cobalt 343
$96,950
Boat in Seattle, WA 98109 US
Built in 2005
343
2 Engines (2x Mercury)
35 feet
Gas
Fiberglass/Reinforced
Open cockpit cruiser with plenty of space for guests whether it's salt water cruising or fresh water. Below are sleeping quarters for 2 plus a head and sink. This boat is perfectly cared for and is ready to provide the next owner with an amazing boat built to last and made for fun and memory making on the water. She's a low hour, locally owned, and stored inside the vessel.
KEY FEATURES
• Low hours
• Well maintained by local yachtsmen
• Ceramic coated
• Head and sleeping quarters onboard
• Bottom painted
• Unique paint code
• Fresh water boat
• Slip can be transferred
New photos coming soon!
• Livors trim tabs
• Analog gauge cluster
• Chart plotter
• Upgraded helm steering wheel
• Stainless throttle/ gear levers
• Captains call / Exhaust flap
• Anchor controls
• Helm Switch Panel
• Seating for 8 people
• Helm chairs support 2 people
• Storage under all seats plus a cooler
• Line storage on port and starboard bulwarks
• Cupholders throughout
• Fresh water washdown
• Music controls
• Drop down latter
• Wrap around couch that turns into a bed for overnighting
• TV for movies
• Upgraded stereo and head unit
• Air conditioning
• Lights on both port and starboard head boards
• Upgraded fire suppression
• Low hours
• Boat Safe built in Engine compartment heater
• Easy access to engine compartment
• Very clean waterless bilges
• Newer batteries
All personal property is excluded unless specifically identified and included in the sale agreement and listing specifications. Personal property refers to all items not permanently attached to the vessel including but not limited to artwork, furnishings, and recreational or entertainment items. Advertisements, marketing materials, and/or other photography may depict the vessel with personal property, however, such personal property is excluded unless otherwise specifically included as provided herein. A full list of exclusions will be provided prior to closing.
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 |
|---|---|---|
| 11/24/25 | Price decreased | $96,950(-3.0%) |
| 10/17/25 | Price decreased | $99,999(-90.0%) |
| 7/3/25 | Price decreased | $104,999(-4.5%) |
| 6/28/25 | Initial price | $110,000 |
Videos from Worth Avenue Yachts - Seattle WA on this 2005 Cobalt 343
2005 Cobalt 343 Video Tours
Boattest.com Review
Overview
Cobalt has long been recognized for producing world-class sport boats, though it has not been widely known in the high-performance segment—until now. The Cobalt 343 represents a significant advancement for the brand, emerging from three years of dedicated research and development. This model is designed to combine high-performance capabilities with the luxury and attention to detail that Cobalt is known for, aiming to deliver an exhilarating and refined boating experience.
Exterior Design and Deck Features
The Cobalt 343 features a thoughtfully designed exterior that prioritizes both performance and comfort. Wide side decks facilitate easy movement around the boat, while a fender locker equipped with gas-assisted lifts provides convenient storage. The deck layout includes two individual sun pads and two stern benches separated by a spacious walk-through, with double-hinged seats offering ample storage beneath. Practical amenities such as an inflator for water toys and a tool kit are integrated into the port bench compartment, which also houses battery switches, main breakers, and canvas pole storage. The two-level transom and swim platform provide close access to the water, protected by a wraparound stainless steel bar that serves as a handhold and dock guard. A dive-style ladder deploys effortlessly via a lever, and stainless steel vents and fins ensure fresh air circulation to the engine compartment. Additional features include a swim shower and water hookup located in the starboard compartment.
Interior Living Spaces
Inside the cabin, the Cobalt 343 offers a level of refinement more commonly found on mega-yachts or aircraft. The cabin door is a solid, non-sliding design that opens to reveal a port-to-starboard V-shaped bench seating area. A flat-panel television is mounted in one corner, providing entertainment options for evening relaxation. The enclosed head includes a port-a-potty, sink, and vanity, ensuring privacy and convenience. At the stern, rear-facing bench seats create a spacious conversation area, with the double-hinged seating providing cavernous storage below.
Helm and Controls
The helm station of the 343 is designed with a futuristic, cockpit-like layout. To the left of the helm, a bank of rocker switches is complemented by two rows of gauges, including water and air temperature indicators as well as digital depth gauges. The helm features Gaffrig instrumentation and LaVorsi precision engine controls, allowing the operator precise command over the vessel. The pilot seat is equipped with electric lifts that enable a quick transition from seated to standing driving positions. This ergonomic and technologically advanced helm setup enhances control and comfort during operation.
Power and Performance
Performance on the Cobalt 343 is driven by twin 496 V8 engines, each producing 425 horsepower. The boat incorporates Cobalt's first-ever step-tall hull design, augmented by a padded keel and a knot's transom, which together contribute to exceptional stability and a smooth ride even in choppy seas. The hull design ensures the boat remains firmly planted on the water during straight runs and maintains excellent grip through turns. The engines feature a closed cooling system, an air-actuated single-point water drain system with an included air pump, and a single serpentine belt driving all components. The engine control module utilizes a motor oil microprocessor to optimize fuel mixture, knock control, and ignition timing independently for each cylinder, resulting in precise and efficient performance. The 343 measures 35 feet 4 inches in length overall with a beam of 9 feet 8 inches and a draft of 28 inches with the drive up, extending to 37 inches with the drive down. It weighs approximately 10,200 pounds with twin CERN drives and carries 200 gallons of fuel, meeting yacht certification standards. Economically, the boat cruises at 3,500 RPM, achieving 40.9 miles per hour with a fuel consumption of 31.5 gallons per hour, offering a range of 234 miles on a full tank. At wide-open throttle, it reaches 5,100 RPM and a top speed of 62.4 miles per hour.
Conclusion
The Cobalt 343 successfully blends high-performance engineering with the luxury and meticulous craftsmanship that the brand is known for. Its innovative hull design and powerful twin engines deliver thrilling speed and handling, while the thoughtfully designed interior and exterior spaces provide comfort and convenience for extended outings. With a top speed exceeding 60 miles per hour and a comprehensive suite of amenities, the 343 stands out as one of the most luxurious high-performance sport boats currently available.
Overview from around the web 2005 Cobalt 343
Customers praise the 2005 Cobalt 343 for its sleek design, spacious and comfortable interior, and excellent performance on the water
Many highlight the boat’s quality craftsmanship and attention to detail, noting its smooth handling and powerful engine options. Owners appreciate the versatile layout, which is ideal for both relaxing and entertaining, as well as the ample storage space. Overall, the 2005 Cobalt 343 is often described as a reliable and stylish cruiser that delivers a premium boating experience.
The Biggest Pros and Cons
The 2005 Cobalt 343 is a well-regarded luxury bowrider known for its blend of performance, comfort, and style. Here are some pros and cons to consider:
Pros
Spacious and Comfortable Layout: The 343 offers ample seating with high-quality upholstery, making it ideal for entertaining family and friends.
Powerful Performance: Equipped with strong engine options, it delivers smooth handling and impressive speed on the water.
Solid Construction: Cobalt boats are known for their durability and quality craftsmanship, and the 343 is no exception with a robust hull design.
Well-Appointed Features: Includes conveniences such as a convertible sun lounge, swim platform with ladder, and a well-designed helm with easy-to-read gauges.
Good Storage: Plenty of storage compartments are integrated throughout the boat for gear, safety equipment, and personal items.
Cons
Fuel Consumption: With its powerful engines, the 343 can be less fuel-efficient compared to smaller or more economy-focused boats.
Weight: The solid build and size contribute to a heavier boat, which may require a more powerful tow vehicle and can affect trailering convenience.
Limited Cabin Space: While the bowrider design maximizes open seating, it lacks an enclosed cabin, making it less suitable for overnight stays or protection in inclement weather.
Maintenance Costs: As a premium boat with advanced features, maintenance and repair expenses may be higher than average.
Made For
The 2005 Cobalt 343 is perfect for boating enthusiasts who value a blend of luxury, performance, and versatility. Ideal for families or groups looking to enjoy comfortable day cruising, watersports, and entertaining on the water, this model offers spacious seating, premium amenities, and a smooth ride suitable for both relaxed outings and adventurous activities. Whether you're hosting friends or enjoying quality time with loved ones, the Cobalt 343 provides a stylish and reliable boating experience.
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 2005 Cobalt 343 | |||||
|---|---|---|---|---|---|
| $96,950 | $95,000 | $99,850 | $82,900 | $69,900 | $124,900 |
| Seattle | Seattle | Chelan | Seattle | Seattle | Seattle |
| 35' | 30' | - | 32' | 32' | 36' |
| 3' | - | - | - | - | - |
| Mercury | - | Mercury | - | - | Volvo Penta |
| 496 hp | - | 425 hp | - | - | 420 hp |
| 456 | 60 | 305 | 125 | 675 | 488 |
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Meet the Broker
Address
Boat Location
Contact Worth Avenue Yachts - Seattle WA about 2005 Cobalt 343
Lake Union Piers, 901 Fairview Avenue N., Suite A180, Seattle, WA, 98109
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