2005 Cobalt 343 Boat in Puslinch, ON CA
Built in 2005
343
2 Engines (2x Mercury MerCruiser)
34 feet
Gas
Fiberglass/Reinforced
Price History
| Date | Event | Price |
|---|---|---|
| 10/15/26 | Price increased | $70,400(+0.6%) |
| 10/14/26 | Price decreased | $70,000(-0.3%) |
| 10/13/26 | Price increased | $70,200(+0.1%) |
| 10/11/26 | Price decreased | $70,100(-0.3%) |
2005 Cobalt 343 Video Tours
Cobalt 343: BoatTEST 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
The 2005 Cobalt 343 has garnered positive feedback from boat enthusiasts and owners alike
Customers often praise its spacious design, which comfortably accommodates families and friends for a day on the water. The cockpit layout is frequently noted for its functionality and ease of movement, making it ideal for social gatherings. Many users appreciate the luxurious amenities that come with the Cobalt 343, including plush seating, a well-equipped galley, and a clean, stylish interior. The high-quality materials used throughout the boat are a recurring point of admiration, contributing to a feeling of durability and elegance. Performance is another highlight, with owners noting the boat's smooth handling and reliable ride, even in choppier waters. The powerful engine options provide a thrilling experience while maintaining good fuel efficiency. Safety features and stability are also mentioned positively, making many feel confident when navigating various water conditions. Overall, the 2005 Cobalt 343 is recognized for its combination of luxury, performance, and comfort, appealing to both casual boaters and serious enthusiasts.
The Biggest Pros and Cons
The 2005 Cobalt 343 is a stunning example of luxury and performance in the boating world. Here’s a breakdown of its pros and cons:
Pros
Smooth Performance: The 343 is equipped with powerful engines that deliver impressive acceleration and speed on the water, providing an exhilarating ride.
Spacious Layout: With a foredeck sun lounge and a spacious cockpit, the 343 offers ample seating for family and friends, making it perfect for socializing and entertaining.
High-Quality Craftsmanship: Cobalt boats are known for their robust construction and high-end materials. The 343 features meticulous attention to detail, ensuring longevity and durability.
Luxurious Amenities: The cabin is well-appointed with comfortable seating, a compact galley, and a head, providing a pleasant living space for weekend getaways.
Smooth Ride: The hull design contributes to a stable and smooth ride, even in choppy waters, enhancing the overall boating experience.
Well-Designed Storage: The boat features ample storage compartments throughout, allowing for organized stowage of gear and personal items.
Cons
Fuel Consumption: The powerful engines can lead to higher fuel consumption, which may be a concern for longer trips or frequent use.
Size and Maneuverability: While the spacious layout is a plus, the larger size can make it slightly less maneuverable in tight spaces compared to smaller vessels.
Cost of Maintenance: As with any luxury boat, maintenance and repairs can be on the pricier side, due to the quality components and craftsmanship used.
Limited Cabin Space: While adequate for short trips, the cabin may feel cramped for extended stays, especially with more than a couple of people.
Steep Price Point: The initial investment can be significant, making it less accessible for some buyers compared to other models in the market.
Made For
The 2005 Cobalt 343 is designed for boaters who appreciate performance combined with luxury. Ideal for families or groups of friends, this vessel accommodates up to 10 passengers comfortably, making it perfect for day trips or weekend getaways. Its spacious layout, featuring a well-appointed cockpit and a cozy cabin, caters to those who enjoy entertaining and relaxing on the water. With its powerful dual engine setup, the Cobalt 343 offers an exhilarating ride, attracting thrill-seekers and water sports enthusiasts alike. Furthermore, its sleek design and high-quality craftsmanship appeal to individuals with a taste for sophistication and style. Whether you're cruising along picturesque coastlines or anchoring in a serene cove, the 2005 Cobalt 343 is for discerning boaters who value both performance and comfort.
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 2005 Cobalt 343 | ||||||
|---|---|---|---|---|---|---|
| Price | $70,400 | $66,809 | $75,257 | $63,289 | $59,769 | $83,705 |
| Location | Puslinch | Thunder Bay | Innisfil | Brechin | Kingsville | Wasaga Beach |
| Nominal Length | 34' | 32' | 27' | 28' | 27' | 35' |
| Engine Make | Mercury MerCruiser | - | - | - | MerCruiser | - |
| Total Engine Power | 425 hp | - | - | - | 300 hp | - |
| Days on Market | 170 | 276 | 635 | 843 | 56 | 277 |
| Get in touch |
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Contact Yacht Network about 2005 Cobalt 343
po box 75389 Leslie street po, Toronto, Ontario, M4M1B3
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