Boston Whaler 170 Montauk 2011 boat specs
Boston Whaler
Boston Whaler 170 Montauk 2011
2011
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VS
Boston Whaler 180 Dauntless 2006 boat specs
Boston Whaler
Boston Whaler 180 Dauntless 2006
2006
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Boston Whaler 170 Montauk 2011 vs Boston Whaler 180 Dauntless 2006 — Same Brand, Different Boat

The Boston Whaler 170 Montauk 2011 vs Boston Whaler 180 Dauntless 2006 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.

On paper these two are close siblings in the size department — Boston Whaler 170 Montauk 2011 at 17,0 ft versus Boston Whaler 180 Dauntless 2006 at 18,0 ft. At 14 lbs and 2 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 150 hp, the Boston Whaler 180 Dauntless 2006 has a 60-hp advantage over the Boston Whaler 170 Montauk 2011's 90-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 170 Montauk 2011 carries 13 gallons versus 6 gallons in the Boston Whaler 180 Dauntless 2006. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Boston Whaler 180 Dauntless 2006 is rated for 8 passengers, while the Boston Whaler 170 Montauk 2011 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Boston Whaler 180 Dauntless 2006 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Boston Whaler 180 Dauntless 2006 comes in at 0 lbs per hp versus 0 lbs per hp for the Boston Whaler 170 Montauk 2011. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.

Bottom line: Choose the Boston Whaler 180 Dauntless 2006 if your priority is putting more people on the water — it handles 8 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Boston Whaler 170 Montauk 2011 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
MakeBoston Whaler
MakeBoston Whaler
Model170 Montauk?
Model180 Dauntless
Model Year2011
Model Year2006
Measurements / Dimensions
Beam6 ft. 10 in. (2.08 m)
Beam8 ft. 0 in. (2.43 m)
Beam - Meters2.08
Beam - Meters2.44
Beam - Inches82
Beam - Inches96
Bridge clearance - Detail4 ft. 11 in. (1.49 m) 6 ft. 11 in. (2.1 m) with sun top
Bridge clearance - Detail5 ft. 0 in. (1.52 m) With Sun Top: 7 ft. 2 in. (2.18 m)
Bridge clearance - Meters2.11
Bridge clearance - Meters2.18
Bridge clearance - Inches83
Bridge clearance - Inches86
Deadrise16°
Deadrisenot available
Draft [max] - Detail9 in. (0.22 m)
Draft [max] - Detail12 in. (.30 m)
Draft [max] - Meters0.23
Draft [max] - Meters0.3
Draft [max] - Inches9
Draft [max] - Inches12
Weight - Detail1,400 lbs. (635 kg) no engine
Weight - Detail2,000 lbs. (907 kg)
Weight - kg635.03
Weight - kg907.18
Weight - lbs.14
Weight - lbs.2
Height [transom]20 in. (0.5 m)
Height [transom]25 in. (.63 m)
Length - Feet17
Length - Feet18
Length overall - Detail17 ft. (5.18 m)
Length overall - Detail18 ft. 6 in. (5.63 m)
Length overall - Meters5.18
Length overall - Meters5.64
Length overall - Inches204
Length overall - Inches222
Length - Metersnot available
Length - Meters5.63
Length - Inchesnot available
Length - Inches6
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Engine/s standardMercury? 90 ELPT L4NA FourStroke
Engine/s standard135 XL OptiMax? Mercury?
Fuel tank capacity - Detail13.2 gal. (49.8 l)
Fuel tank capacity - Detail60 gal. (227 l)
Fuel tank capacity - Liters49.21
Fuel tank capacity - Liters227.12
Fuel tank capacity - Gal13.2
Fuel tank capacity - Gal6
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeOutboard
Engine max90 hp (67 kW)
Engine maxMaximum: 150 hp (111 kW) Minimum: 115 hp (85 kW) Maximum Engine Weight: 530 lbs. (240 kg)
Operational Info
Maximum capacity1,650 lbs. (748 kg) Swamped Capacity: 3,400 lbs. (1,542 kg)
Maximum capacity4,000 lbs. (1,814 kg)
Maximum people7
Maximum people8

Boston Whaler 170 Montauk 2011 vs Boston Whaler 180 Dauntless 2006 — Common Questions

Which is the larger boat — the Boston Whaler 170 Montauk 2011 or the Boston Whaler 180 Dauntless 2006?
The Boston Whaler 180 Dauntless 2006 is the longer of the two at 18,0 feet overall. The Boston Whaler 170 Montauk 2011 comes in at 17,0 feet, making it roughly 1,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Boston Whaler 170 Montauk 2011 or the Boston Whaler 180 Dauntless 2006?
For trailering, the Boston Whaler 180 Dauntless 2006 has the edge at 2 lbs dry weight versus 14 lbs for the Boston Whaler 170 Montauk 2011. 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 180 Dauntless 2006 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Boston Whaler 170 Montauk 2011 tops out at 90 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 170 Montauk 2011 is Coast Guard rated for 7 passengers, while the Boston Whaler 180 Dauntless 2006 is certified for 8. 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 has the better power-to-weight ratio?
The Boston Whaler 180 Dauntless 2006 has a better power-to-weight ratio at 0 lbs per hp compared to 0 lbs per hp for the Boston Whaler 170 Montauk 2011. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Boston Whaler 180 Dauntless 2006 measures 96" wide, compared to 82" for the Boston Whaler 170 Montauk 2011. 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 170 Montauk 2011 or the Boston Whaler 180 Dauntless 2006?
The Boston Whaler 170 Montauk 2011 has the bigger tank at 13 gallons, versus 6 gallons on the Boston Whaler 180 Dauntless 2006. That 7-gallon difference translates to roughly 21–36 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Boston Whaler 170 Montauk 2011 and Boston Whaler 180 Dauntless 2006 from the same manufacturer?
Yes — both the Boston Whaler 170 Montauk 2011 and the Boston Whaler 180 Dauntless 2006 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.