Cobalt Boats 343 2007 boat specs
Cobalt Boats
Cobalt Boats 343 2007
2007
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VS
Cobalt Boats R6 2021 boat specs
Cobalt Boats
Cobalt Boats R6 2021
2021
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Cobalt Boats 343 2007 vs Cobalt Boats R6 2021 — Same Brand, Different Boat

The Cobalt Boats 343 2007 vs Cobalt Boats R6 2021 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

The Cobalt Boats 343 2007 carries a rated maximum of 500 hp. Engine data for the Cobalt Boats R6 2021 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.

For family outings this is probably the sharpest distinction between the two. The Cobalt Boats 343 2007 is rated for 10 passengers, while the Cobalt Boats R6 2021 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Cobalt Boats 343 2007 could be the deciding factor.

Bottom line: Choose the Cobalt Boats 343 2007 if your priority is putting more people on the water — it handles 10 passengers and at 35,0 ft it has the deck room to back that rating up comfortably. The Cobalt Boats R6 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.
General Boat Info
MakeCobalt Boats
Makenot available
Model343
Modelnot available
Model Year2007
Model Yearnot available
Measurements / Dimensions
Beam9 ft. 8 in. (2.95 m)
Beamnot available
Beam - Meters2.95
Beam - Metersnot available
Beam - Inches116
Beam - Inchesnot available
Bridge clearance - Detail69 in. (1.75 m)
Bridge clearance - Detailnot available
Bridge clearance - Meters1.75
Bridge clearance - Metersnot available
Bridge clearance - Inches69
Bridge clearance - Inchesnot available
Deadrise24.5℃
Deadrisenot available
Draft [drive up] - Detail28 in. (0.71 m) (with twin engines)
Draft [drive up] - Detailnot available
Draft [drive up] meters0.71
Draft [drive up] metersnot available
Draft [drive up] inches28
Draft [drive up] inchesnot available
Draft [max] - Detail37 in. (0.94 m) (with twin engines)
Draft [max] - Detailnot available
Draft [max] - Meters0.94
Draft [max] - Metersnot available
Draft [max] - Inches37
Draft [max] - Inchesnot available
Weight - Detail11,750 lbs. (5,330 kg) (with twin big block engines)
Weight - Detailnot available
Weight - kg5329.71
Weight - kgnot available
Weight - lbs.1175
Weight - lbs.not available
Height - DetailOverall: 87-1/2 in. (2.22 m) With arch or tower: 116-1/2 in. (2.96 m) Without windshield: 73-1/2 in. (1.87 m)
Height - Detailnot available
Height - Meters2.97
Height - Metersnot available
Height - Inches116.5
Height - Inchesnot available
Length - Meters10.78
Length - Metersnot available
Length - Feet35
Length - Feet26
Length - Inches4
Length - Inchesnot available
Length [over all with swim platform]37 ft. 2-1/2 in. (11.34 m)
Length [over all with swim platform]not available
Length overall - Detail35 ft. 4 in. (10.78 m)
Length overall - Detail26.00 ft
Length overall - Meters10.77
Length overall - Meters7.92
Length overall - Inches424
Length overall - Inches312
Engine and Drivetrain
Engine/s standardMerCruiser Twin 496 Mag MPI Bravo 1 375 hp (280 kW)
Engine/s standardnot available
Fuel tank capacity - Detail200 gal. (757 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters757.08
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal2
Fuel tank capacity - Galnot available
Fuel typeGas or diesel
Fuel typeGas
Drive typeInboard/Outboard
Drive typenot available
Engine maxTwin 500 hp
Engine maxnot available
Engine makenot available
Engine makeMercruiser
Operational Info
HeadElectric
Headnot available
Water capacity10 gal. (37.9 l)
Water capacitynot available
Maximum capacityYacht certified
Maximum capacitynot available
Maximum peopleYacht certified
Maximum peoplenot available
Boat typenot available
Boat typePower

Cobalt Boats 343 2007 vs Cobalt Boats R6 2021 — Common Questions

Which is the larger boat — the Cobalt Boats 343 2007 or the Cobalt Boats R6 2021?
The Cobalt Boats 343 2007 is the longer of the two at 35,0 feet overall. The Cobalt Boats R6 2021 comes in at 26,0 feet, making it roughly 9,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The Cobalt Boats 343 2007 has a documented max rating of 500 hp. Engine specifications for the Cobalt Boats R6 2021 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Cobalt Boats 343 2007 is Coast Guard rated for 10 passengers, while the Cobalt Boats R6 2021 is certified for 7. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Are the Cobalt Boats 343 2007 and Cobalt Boats R6 2021 from the same manufacturer?
Yes — both the Cobalt Boats 343 2007 and the Cobalt Boats R6 2021 are built by Cobalt Boats. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.