SeaArk 1448 MV 2005 boat specs
SeaArk
SeaArk 1448 MV 2005
2005
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VS
SeaArk 1548SLD 2006 boat specs
SeaArk
SeaArk 1548SLD 2006
2006
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SeaArk 1448 MV 2005 vs SeaArk 1548SLD 2006 — Same Brand, Different Boat

The SeaArk 1448 MV 2005 vs SeaArk 1548SLD 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 — SeaArk 1448 MV 2005 at 14,0 ft versus SeaArk 1548SLD 2006 at 15,0 ft. At 305 lbs and 355 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.

Both boats share a closely matched power ceiling — 30 hp for the SeaArk 1448 MV 2005 and 40 hp for the SeaArk 1548SLD 2006. 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 4 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 SeaArk 1548SLD 2006 comes in at 9 lbs per hp versus 10 lbs per hp for the SeaArk 1448 MV 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 SeaArk 1448 MV 2005 and SeaArk 1548SLD 2006 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
MakeSeaArk
MakeSeaArk
Model1448 MV
Model1548SLD
Model Year2005
Model Year2006
Measurements / Dimensions
Beam67 in. (1.7 m)
Beam67 in
Beam - Meters1.7
Beam - Meters1.7
Beam - Inches67
Beam - Inches67
Depth - Detail20 in. (.51 m)
Depth - Detail20 in
Depth - Centimeters50.8
Depth - Centimeters50.8
Depth - Inches2
Depth - Inches2
Weight - Detail305 lbs. (106.6 kg)
Weight - Detail355 lbs
Weight - kg138.35
Weight - kg161.03
Weight - lbs.305
Weight - lbs.355
Width [transom] - Detail48 in. (1.22 m)
Width [transom] - Detail48 in
Length - Meters4.27
Length - Metersnot available
Length - Feet14
Length - Feet15
Length overall - Detail14 ft. 0 in. (4.27 m)
Length overall - Detail15 ft. 0 in
Length overall - Meters4.27
Length overall - Meters4.57
Length overall - Inches168
Length overall - Inches18
Height [transom]not available
Height [transom]15 in. / 20 in
Body / Hull
Hull thickness.100 in. (2.54 mm)
Hull thickness.100 in
Engine and Drivetrain
Drive typeOutboard
Drive typeOutboard
Engine max30 hp (22.4 kw)
Engine max40 hp
Fuel typenot available
Fuel typeGas
Operational Info
Maximum capacity865 lbs. (392.4 kg)
Maximum capacity830 lbs
Maximum people4
Maximum people4 people / 465 lbs

SeaArk 1448 MV 2005 vs SeaArk 1548SLD 2006 — Common Questions

Which is the larger boat — the SeaArk 1448 MV 2005 or the SeaArk 1548SLD 2006?
The SeaArk 1548SLD 2006 is the longer of the two at 15,0 feet overall. The SeaArk 1448 MV 2005 comes in at 14,0 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 SeaArk 1448 MV 2005 or the SeaArk 1548SLD 2006?
For trailering, the SeaArk 1448 MV 2005 has the edge at 305 lbs dry weight versus 355 lbs for the SeaArk 1548SLD 2006. 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 SeaArk 1548SLD 2006 is rated to a maximum of 40 hp, giving it the larger power ceiling. The SeaArk 1448 MV 2005 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 SeaArk 1448 MV 2005 is Coast Guard rated for 4 passengers, while the SeaArk 1548SLD 2006 is certified for 4. 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 SeaArk 1548SLD 2006 has a better power-to-weight ratio at 9 lbs per hp compared to 10 lbs per hp for the SeaArk 1448 MV 2005. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Do these boats require an oversize trailer permit to tow on US highways?
Both the SeaArk 1448 MV 2005 and SeaArk 1548SLD 2006 share an 67 in. (1.7 m) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
Are the SeaArk 1448 MV 2005 and SeaArk 1548SLD 2006 from the same manufacturer?
Yes — both the SeaArk 1448 MV 2005 and the SeaArk 1548SLD 2006 are built by SeaArk. 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.