Detailed Evaluation & Buyer Recommendation
Cobalt Boats 343 2007 vs Cobalt Boats R8 2021 — Same Brand, Different Boat
The Cobalt Boats 343 2007 vs Cobalt Boats R8 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 power gap is worth calling out. Rated to 500 hp, the Cobalt Boats 343 2007 has a 200-hp advantage over the Cobalt Boats R8 2021's 300-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
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 R8 2021 caps at 8. 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 R8 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 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 - Feet28
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 - Detail28.00 ft
Length overall - Meters10.77
Length overall - Meters8.53
Length overall - Inches424
Length overall - Inches336
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 typeoutboard
Engine maxTwin 500 hp
Engine maxnot available
Engine makenot available
Engine makeYamaha
Horsepowernot available
Horsepower300 hp
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