Polar Kraft Dakota V 1578 WB 2012 boat specs
Polar Kraft
Polar Kraft Dakota V 1578 WB 2012
2012
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VS
Polar Kraft DAKOTA V1670 WT 2005 boat specs
Polar Kraft
Polar Kraft DAKOTA V1670 WT 2005
2005
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Polar Kraft Dakota V 1578 WB 2012 vs Polar Kraft DAKOTA V1670 WT 2005 — Same Brand, Different Boat

The Polar Kraft Dakota V 1578 WB 2012 vs Polar Kraft DAKOTA V1670 WT 2005 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 — Polar Kraft Dakota V 1578 WB 2012 at 15,0 ft versus Polar Kraft DAKOTA V1670 WT 2005 at 16,0 ft. Weight tells a clearer story for trailering families: the Polar Kraft DAKOTA V1670 WT 2005 tips the scales at 491 lbs — 456 lbs less than the Polar Kraft Dakota V 1578 WB 2012 at 35 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

Both boats share a closely matched power ceiling — 30 hp for the Polar Kraft Dakota V 1578 WB 2012 and 40 hp for the Polar Kraft DAKOTA V1670 WT 2005. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.

Both boats are rated for 5 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.

At this size, power-to-weight ratio matters more than outright horsepower. The Polar Kraft Dakota V 1578 WB 2012 comes in at 1 lbs per hp versus 12 lbs per hp for the Polar Kraft DAKOTA V1670 WT 2005. 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: The Polar Kraft Dakota V 1578 WB 2012 and Polar Kraft DAKOTA V1670 WT 2005 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakePolar Kraft
MakePolar Kraft
ModelDakota V 1578 WB
ModelDAKOTA V1670 WT
Model Year2012
Model Year2005
Measurements / Dimensions
Beam78 in. (1.98 m)
Beam70 in
Beam - Meters1.98
Beam - Meters1.78
Beam - Inches78
Beam - Inches7
Weight - Detail350 lbs. (159 kg)
Weight - Detail491 lbs
Weight - kg158.76
Weight - kg222.71
Weight - lbs.35
Weight - lbs.491
Length - Feet15
Length - Feet16
Length overall - Detail15 ft. 0 in. (4.57 m)
Length overall - Detail16 ft. 2 in
Length overall - Meters4.57
Length overall - Meters4.93
Length overall - Inches18
Length overall - Inches194
Width [transom] - Detailnot available
Width [transom] - Detail49.75 in
Height [transom]not available
Height [transom]21 in
Length - Inchesnot available
Length - Inches2
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typeDeep Vee
Hull typenot available
Hull thicknessnot available
Hull thickness.064 in
Engine and Drivetrain
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeOutboard
Engine max30 hp (22 kW)
Engine max40 hp
Operational Info
Maximum people5
Maximum people5
Maximum capacitynot available
Maximum capacity1055 lbs

Polar Kraft Dakota V 1578 WB 2012 vs Polar Kraft DAKOTA V1670 WT 2005 — Common Questions

Which is the larger boat — the Polar Kraft Dakota V 1578 WB 2012 or the Polar Kraft DAKOTA V1670 WT 2005?
The Polar Kraft DAKOTA V1670 WT 2005 is the longer of the two at 16,0 feet overall. The Polar Kraft Dakota V 1578 WB 2012 comes in at 15,0 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 Polar Kraft Dakota V 1578 WB 2012 or the Polar Kraft DAKOTA V1670 WT 2005?
For trailering, the Polar Kraft Dakota V 1578 WB 2012 has the edge at 35 lbs dry weight versus 491 lbs for the Polar Kraft DAKOTA V1670 WT 2005. 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 Polar Kraft DAKOTA V1670 WT 2005 is rated to a maximum of 40 hp, giving it the larger power ceiling. The Polar Kraft Dakota V 1578 WB 2012 tops out at 30 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 Polar Kraft Dakota V 1578 WB 2012 is Coast Guard rated for 5 passengers, while the Polar Kraft DAKOTA V1670 WT 2005 is certified for 5. 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 Polar Kraft Dakota V 1578 WB 2012 has a better power-to-weight ratio at 1 lbs per hp compared to 12 lbs per hp for the Polar Kraft DAKOTA V1670 WT 2005. 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 Polar Kraft Dakota V 1578 WB 2012 measures 78" wide, compared to 7" for the Polar Kraft DAKOTA V1670 WT 2005. 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.
Are the Polar Kraft Dakota V 1578 WB 2012 and Polar Kraft DAKOTA V1670 WT 2005 from the same manufacturer?
Yes — both the Polar Kraft Dakota V 1578 WB 2012 and the Polar Kraft DAKOTA V1670 WT 2005 are built by Polar Kraft. 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.