Boston Whaler 255 Conquest 2006 boat specs
Boston Whaler
Boston Whaler 255 Conquest 2006
2006
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VS
Boston Whaler 345 Conquest 2010 boat specs
Boston Whaler
Boston Whaler 345 Conquest 2010
2010
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Boston Whaler 255 Conquest 2006 vs Boston Whaler 345 Conquest 2010 — Same Brand, Different Boat

The Boston Whaler 255 Conquest 2006 vs Boston Whaler 345 Conquest 2010 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.

Size is the most obvious dividing line here. The Boston Whaler 345 Conquest 2010 measures 35,9 feet overall (2010), giving it roughly 9,9 additional feet of deck space compared to the Boston Whaler 255 Conquest 2006 at 26,0 feet (2006). At 49 lbs and 142 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 900 hp, the Boston Whaler 345 Conquest 2010 has a 450-hp advantage over the Boston Whaler 255 Conquest 2006's 450-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Boston Whaler 345 Conquest 2010 carries 347 gallons versus 15 gallons in the Boston Whaler 255 Conquest 2006. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 14 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Boston Whaler 345 Conquest 2010 at 35,9 ft is the right call if deck space, comfort, and entertaining are top of your list. The Boston Whaler 255 Conquest 2006 at 26,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.
General Boat Info
MakeBoston Whaler
MakeBoston Whaler
Model255 Conquest
Model345 Conquest?
Model Year2006
Model Year201
Measurements / Dimensions
Beam8 ft. 9 in. (2.66 m)
Beam11 ft. 8 in. (3.56 m)
Beam - Meters2.67
Beam - Meters3.56
Beam - Inches105
Beam - Inches14
Bridge clearance - Detail7 ft. 3 in. (2.20 m) With Hard Top: 9 ft. 5 in. (2.87 m)
Bridge clearance - Detail10 ft. 0 in. (3.05 m) with hardtop 11 ft. 2 in. (3.4 m) with radar
Bridge clearance - Meters2.87
Bridge clearance - Meters3.4
Bridge clearance - Inches113
Bridge clearance - Inches134
Draft [max] - Detail16 in. (.40 m)
Draft [max] - Detail22 in. (0.55 m) boat only
Draft [max] - Meters0.41
Draft [max] - Meters0.56
Draft [max] - Inches16
Draft [max] - Inches22
Weight - Detail4,900 lbs. (2,222 kg)
Weight - Detail14,200 lbs. (6,441 kg) no engine
Weight - kg2222.6
Weight - kg6441.01
Weight - lbs.49
Weight - lbs.142
Height [transom]25 in. d / 30 in. s (.63 m / .76 m)
Height [transom]not available
Length - Meters8.2
Length - Metersnot available
Length - Feet26
Length - Feet35.92
Length - Inches11
Length - Inchesnot available
Length overall - Detail26 ft. 11 in. (8.20 m)
Length overall - Detail35 ft. 11 in. (10.95 m) with pulpit
Length overall - Meters8.2
Length overall - Meters10.95
Length overall - Inches323
Length overall - Inches431
Engine and Drivetrain
Engine/s standard225 XXL OptiMax? Mercury
Engine/s standard300 CXL DTS dual Mercury? Verado? FourStrokes
Fuel tank capacity - Detail150 gal. (567 l)
Fuel tank capacity - Detail347 gal. (1,528 l)
Fuel tank capacity - Liters567.81
Fuel tank capacity - Liters1313.54
Fuel tank capacity - Gal15
Fuel tank capacity - Gal347
Drive typeOutboard
Drive typeOutboard - Twin
Engine maxMaximum: 450 hp (335 kW) Minimum: 225 hp (167 kW) Maximum Engine Weight: 1,220 lbs. (553 kg)
Engine max900 hp (671 kW)
Fuel typenot available
Fuel typeGas
Horsepowernot available
Horsepower600 hp (447 kW)
Operational Info
Maximum capacity6,100 lbs. (2,766 kg)
Maximum capacitySwamped Capacity: 1,200 lbs. (544 kg)
Maximum people14
Maximum people14
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeDeep Vee

Boston Whaler 255 Conquest 2006 vs Boston Whaler 345 Conquest 2010 — Common Questions

Which is the larger boat — the Boston Whaler 255 Conquest 2006 or the Boston Whaler 345 Conquest 2010?
The Boston Whaler 345 Conquest 2010 is the longer of the two at 35,9 feet overall. The Boston Whaler 255 Conquest 2006 comes in at 26,0 feet, making it roughly 9,9 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Boston Whaler 255 Conquest 2006 or the Boston Whaler 345 Conquest 2010?
For trailering, the Boston Whaler 255 Conquest 2006 has the edge at 49 lbs dry weight versus 142 lbs for the Boston Whaler 345 Conquest 2010. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
Which boat can handle a bigger outboard?
The Boston Whaler 345 Conquest 2010 is rated to a maximum of 900 hp, giving it the larger power ceiling. The Boston Whaler 255 Conquest 2006 tops out at 450 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Boston Whaler 255 Conquest 2006 is Coast Guard rated for 14 passengers, while the Boston Whaler 345 Conquest 2010 is certified for 14. 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.
Which boat is wider, and does it affect trailering?
The Boston Whaler 255 Conquest 2006 measures 105" wide, compared to 14" for the Boston Whaler 345 Conquest 2010. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Boston Whaler 255 Conquest 2006 or the Boston Whaler 345 Conquest 2010?
The Boston Whaler 345 Conquest 2010 has the bigger tank at 347 gallons, versus 15 gallons on the Boston Whaler 255 Conquest 2006. That 332-gallon difference translates to roughly 996–1660 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Boston Whaler 255 Conquest 2006 and Boston Whaler 345 Conquest 2010 from the same manufacturer?
Yes — both the Boston Whaler 255 Conquest 2006 and the Boston Whaler 345 Conquest 2010 are built by Boston Whaler. 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.