Marathon Grumman Heritage H2085CPR 2013 boat specs
Marathon
Marathon Grumman Heritage H2085CPR 2013
2013
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VS
Marathon Jon - DN 1236 2008 boat specs
Marathon
Marathon Jon - DN 1236 2008
2008
View full specs →

Marathon Grumman Heritage H2085CPR 2013 vs Marathon Jon - DN 1236 2008 — Same Brand, Different Boat

Matching a pontoon Marathon Grumman Heritage H2085CPR 2013 against a flat Marathon Jon - DN 1236 2008 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The Marathon Jon - DN 1236 2008 measures 12,0 feet overall (2008), giving it roughly 10,0 additional feet of deck space compared to the Marathon Grumman Heritage H2085CPR 2013 at 2,0 feet (2013). Weight tells a clearer story for trailering families: the Marathon Grumman Heritage H2085CPR 2013 tips the scales at 189 lbs — 178 lbs more than the Marathon Jon - DN 1236 2008 at 11 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.

The power gap is worth calling out. Rated to 100 hp, the Marathon Grumman Heritage H2085CPR 2013 has a 93-hp advantage over the Marathon Jon - DN 1236 2008's 7-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Marathon Grumman Heritage H2085CPR 2013 is rated for 12 passengers, while the Marathon Jon - DN 1236 2008 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Marathon Grumman Heritage H2085CPR 2013 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Marathon Jon - DN 1236 2008 comes in at 2 lbs per hp versus 2 lbs per hp for the Marathon Grumman Heritage H2085CPR 2013. 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 Marathon Grumman Heritage H2085CPR 2013 if your priority is putting more people on the water — it handles 12 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Marathon Jon - DN 1236 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.
General Boat Info
MakeMarathon
MakeMarathon
ModelGrumman Heritage H2085CPR
ModelJon - DN 1236
Model Year2013
Model Year2008
Measurements / Dimensions
Beam8.5 ft. deck width
Beamnot available
Beam - Meters2.59
Beam - Metersnot available
Beam - Inches102
Beam - Inchesnot available
Weight - Detail1,890 lbs
Weight - Detail110 lbs
Weight - kg857.29
Weight - kg49.9
Weight - lbs.189
Weight - lbs.11
Length [at waterline]20 ft. log length
Length [at waterline]not available
Length - Feet2
Length - Feet12
Depth - Detailnot available
Depth - Detail14 in
Depth - Centimetersnot available
Depth - Centimeters35.56
Depth - Inchesnot available
Depth - Inches14
Width [transom] - Detailnot available
Width [transom] - Detail53 in
Height [transom]not available
Height [transom]15 in
Length overall - Detailnot available
Length overall - Detail12 ft. 0 in
Length overall - Metersnot available
Length overall - Meters3.66
Length overall - Inchesnot available
Length overall - Inches144
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typePontoon
Hull typeFlat
Hull thicknessnot available
Hull thickness0.05 in
Pontoon and Inflatable Specific
Tube diameter25 in
Tube diameternot available
Tube gauge0.090 in
Tube gaugenot available
Number of tubes2
Number of tubesnot available
Engine and Drivetrain
Fuel tank capacity - Detail25 gal
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters94.64
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal25
Fuel tank capacity - Galnot available
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max100 hp
Engine max7 hp
Operational Info
Maximum capacity2,455 lbs
Maximum capacitynot available
Maximum people12 / 1,777 lbs
Maximum people3 / 506 lbs

Marathon Grumman Heritage H2085CPR 2013 vs Marathon Jon - DN 1236 2008 — Common Questions

Which is the larger boat — the Marathon Grumman Heritage H2085CPR 2013 or the Marathon Jon - DN 1236 2008?
The Marathon Jon - DN 1236 2008 is the longer of the two at 12,0 feet overall. The Marathon Grumman Heritage H2085CPR 2013 comes in at 2,0 feet, making it roughly 10,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Marathon Grumman Heritage H2085CPR 2013 or the Marathon Jon - DN 1236 2008?
For trailering, the Marathon Jon - DN 1236 2008 has the edge at 11 lbs dry weight versus 189 lbs for the Marathon Grumman Heritage H2085CPR 2013. 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 Marathon Grumman Heritage H2085CPR 2013 is rated to a maximum of 100 hp, giving it the larger power ceiling. The Marathon Jon - DN 1236 2008 tops out at 7 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 Marathon Grumman Heritage H2085CPR 2013 is Coast Guard rated for 12 passengers, while the Marathon Jon - DN 1236 2008 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 Jon - DN 1236 2008 has a better power-to-weight ratio at 2 lbs per hp compared to 2 lbs per hp for the Marathon Grumman Heritage H2085CPR 2013. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Are the Marathon Grumman Heritage H2085CPR 2013 and Marathon Jon - DN 1236 2008 from the same manufacturer?
Yes — both the Marathon Grumman Heritage H2085CPR 2013 and the Marathon Jon - DN 1236 2008 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.