SeaArk 1860 MVTPD 2005 boat specs
SeaArk
SeaArk 1860 MVTPD 2005
2005
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VS
SeaArk 1860MVT  Super Tunnel Jon 2012 boat specs
SeaArk
SeaArk 1860MVT Super Tunnel Jon 2012
2012
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SeaArk 1860 MVTPD 2005 vs SeaArk 1860MVT Super Tunnel Jon 2012 — Same Brand, Different Boat

The SeaArk 1860 MVTPD 2005 vs SeaArk 1860MVT Super Tunnel Jon 2012 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 1860 MVTPD 2005 at 18,0 ft versus SeaArk 1860MVT Super Tunnel Jon 2012 at 18,0 ft. Weight tells a clearer story for trailering families: the SeaArk 1860 MVTPD 2005 tips the scales at 615 lbs — 610 lbs more than the SeaArk 1860MVT Super Tunnel Jon 2012 at 5 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 — 60 hp for the SeaArk 1860 MVTPD 2005 and 60 hp for the SeaArk 1860MVT Super Tunnel Jon 2012. 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 7 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 1860MVT Super Tunnel Jon 2012 comes in at 0 lbs per hp versus 10 lbs per hp for the SeaArk 1860 MVTPD 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 1860 MVTPD 2005 and SeaArk 1860MVT Super Tunnel Jon 2012 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
Model1860 MVTPD
Model1860MVT Super Tunnel Jon
Model Year2005
Model Year2012
Measurements / Dimensions
Beam82 in. (2.08 m)
Beam82 in
Beam - Meters2.08
Beam - Meters2.08
Beam - Inches82
Beam - Inches82
Depth - Detail24 in. (.61 m)
Depth - Detail24 in
Depth - Centimeters60.96
Depth - Centimeters60.96
Depth - Inches24
Depth - Inches24
Weight - Detail615 lbs. (278.7 kg)
Weight - Detail500 lbs
Weight - kg278.96
Weight - kg226.8
Weight - lbs.615
Weight - lbs.5
Width [transom] - Detail60 in. (1.52 m)
Width [transom] - DetailBottom: 60 in
Height [transom]20 in. (.51 m)
Height [transom]not available
Length - Meters5.49
Length - Metersnot available
Length - Feet18
Length - Feet18
Length overall - Detail18 ft. 0 in. (5.49 m)
Length overall - Detail18 ft
Length overall - Meters5.49
Length overall - Meters5.49
Length overall - Inches216
Length overall - Inches216
Body / Hull
Hull thickness.100 in. (2.54 mm)
Hull thickness0.100 in
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typeTunnel
Engine and Drivetrain
Drive typeOutboard
Drive typenot available
Engine max60 hp (44.7 kw)
Engine max60 / 80 hp
Fuel typenot available
Fuel typeGas
Operational Info
Maximum capacity1,350 lbs. (612.4 kg)
Maximum capacity1,350 lbs
Maximum people7
Maximum people7 / 970 lbs

SeaArk 1860 MVTPD 2005 vs SeaArk 1860MVT Super Tunnel Jon 2012 — Common Questions

Which is the larger boat — the SeaArk 1860 MVTPD 2005 or the SeaArk 1860MVT Super Tunnel Jon 2012?
The SeaArk 1860MVT Super Tunnel Jon 2012 is the longer of the two at 18,0 feet overall. The SeaArk 1860 MVTPD 2005 comes in at 18,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the SeaArk 1860 MVTPD 2005 or the SeaArk 1860MVT Super Tunnel Jon 2012?
For trailering, the SeaArk 1860MVT Super Tunnel Jon 2012 has the edge at 5 lbs dry weight versus 615 lbs for the SeaArk 1860 MVTPD 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.
How many people can each boat hold?
The SeaArk 1860 MVTPD 2005 is Coast Guard rated for 7 passengers, while the SeaArk 1860MVT Super Tunnel Jon 2012 is certified for 7. 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 1860MVT Super Tunnel Jon 2012 has a better power-to-weight ratio at 0 lbs per hp compared to 10 lbs per hp for the SeaArk 1860 MVTPD 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 1860 MVTPD 2005 and SeaArk 1860MVT Super Tunnel Jon 2012 share an 82 in. (2.08 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 1860 MVTPD 2005 and SeaArk 1860MVT Super Tunnel Jon 2012 from the same manufacturer?
Yes — both the SeaArk 1860 MVTPD 2005 and the SeaArk 1860MVT Super Tunnel Jon 2012 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.