Marathon DN 12 Utility V 2011 boat specs
Marathon
Marathon DN 12 Utility V 2011
2011
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VS
Marathon Seneca 12 2007 boat specs
Marathon
Marathon Seneca 12 2007
2007
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Marathon DN 12 Utility V 2011 vs Marathon Seneca 12 2007 — Same Brand, Different Boat

The Marathon DN 12 Utility V 2011 vs Marathon Seneca 12 2007 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 — Marathon DN 12 Utility V 2011 at 11,7 ft versus Marathon Seneca 12 2007 at 11,0 ft. At 121 lbs and 121 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 — 10 hp for the Marathon DN 12 Utility V 2011 and 10 hp for the Marathon Seneca 12 2007. 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 3 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 Marathon Seneca 12 2007 comes in at 12 lbs per hp versus 12 lbs per hp for the Marathon DN 12 Utility V 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: The Marathon DN 12 Utility V 2011 and Marathon Seneca 12 2007 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
MakeMarathon
MakeMarathon
ModelDN 12 Utility V
ModelSeneca 12
Model Year2011
Model Year2007
Measurements / Dimensions
Beam55 in
Beam55 in
Beam - Meters1.4
Beam - Meters1.4
Beam - Inches55
Beam - Inches55
Depth - Detail19 in
Depth - DetailAmidship: 19 in
Depth - Centimeters48.26
Depth - Centimeters48.26
Depth - Inches19
Depth - Inches19
Weight - Detail121 lbs
Weight - Detail121 lbs
Weight - kg54.88
Weight - kg54.88
Weight - lbs.121
Weight - lbs.121
Height [transom]15 in
Height [transom]15 in
Length - Feet11.67
Length - Feet11
Length overall - Detail11 ft. 8 in
Length overall - Detail11 ft. 8 in
Length overall - Meters3.56
Length overall - Meters3.56
Length overall - Inches14
Length overall - Inches14
Height - Detailnot available
Height - DetailBow: 24 in
Height - Metersnot available
Height - Meters0.61
Height - Inchesnot available
Height - Inches24
Length - Inchesnot available
Length - Inches8
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull thickness0.050 in
Hull thickness.050 in
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max10 hp
Engine max10 hp
Operational Info
Maximum capacity540 lbs
Maximum capacity540 lbs
Maximum people3 / 350 lbs
Maximum people3

Marathon DN 12 Utility V 2011 vs Marathon Seneca 12 2007 — Common Questions

Which is the larger boat — the Marathon DN 12 Utility V 2011 or the Marathon Seneca 12 2007?
The Marathon DN 12 Utility V 2011 is the longer of the two at 11,7 feet overall. The Marathon Seneca 12 2007 comes in at 11,0 feet, making it roughly 0,7 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Marathon DN 12 Utility V 2011 or the Marathon Seneca 12 2007?
For trailering, the Marathon Seneca 12 2007 has the edge at 121 lbs dry weight versus 121 lbs for the Marathon DN 12 Utility V 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.
How many people can each boat hold?
The Marathon DN 12 Utility V 2011 is Coast Guard rated for 3 passengers, while the Marathon Seneca 12 2007 is certified for 3. 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 Marathon Seneca 12 2007 has a better power-to-weight ratio at 12 lbs per hp compared to 12 lbs per hp for the Marathon DN 12 Utility V 2011. 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 Marathon DN 12 Utility V 2011 and Marathon Seneca 12 2007 share an 55 in 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 Marathon DN 12 Utility V 2011 and Marathon Seneca 12 2007 from the same manufacturer?
Yes — both the Marathon DN 12 Utility V 2011 and the Marathon Seneca 12 2007 are built by Marathon. 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.