Harris Flotebote Grand Mariner SL 250 2013 boat specs
Harris Flotebote
Harris Flotebote Grand Mariner SL 250 2013
2013
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VS
Harris Flotebote Super Sunliner 240 2005 boat specs
Harris Flotebote
Harris Flotebote Super Sunliner 240 2005
2005
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Harris Flotebote Grand Mariner SL 250 2013 vs Harris Flotebote Super Sunliner 240 2005 — Same Brand, Different Boat

The Harris Flotebote Grand Mariner SL 250 2013 vs Harris Flotebote Super Sunliner 240 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 — Harris Flotebote Grand Mariner SL 250 2013 at 26,8 ft versus Harris Flotebote Super Sunliner 240 2005 at 24,0 ft. Weight tells a clearer story for trailering families: the Harris Flotebote Grand Mariner SL 250 2013 tips the scales at 3 876 lbs — 3 641 lbs more than the Harris Flotebote Super Sunliner 240 2005 at 235 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 140 hp, the Harris Flotebote Super Sunliner 240 2005 has a 138-hp advantage over the Harris Flotebote Grand Mariner SL 250 2013's 2-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 Harris Flotebote Super Sunliner 240 2005 is rated for 17 passengers, while the Harris Flotebote Grand Mariner SL 250 2013 caps at 2. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Harris Flotebote Super Sunliner 240 2005 could be the deciding factor.

Bottom line: Choose the Harris Flotebote Super Sunliner 240 2005 if your priority is putting more people on the water — it handles 17 passengers and at 24,0 ft it has the deck room to back that rating up comfortably. The Harris Flotebote Grand Mariner SL 250 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 2 that costs less to run day-to-day.
General Boat Info
MakeHarris Flotebote
MakeHarris Flotebote
ModelGrand Mariner SL 25
ModelSuper Sunliner 24
Model Year2013
Model Year2005
Measurements / Dimensions
Beam8 ft. 6 in. (2.6 m)
Beam8 ft. 6 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Weight - Detail2 Tubes: 3,578 lbs. (1,623 kg) 3 Tubes: 3,876 lbs. (1,758 kg)
Weight - Detail2,350 lbs
Weight - kg1758.12
Weight - kg1065.94
Weight - lbs.3876
Weight - lbs.235
Length [at waterline]Log Length: 25 ft. (7.6 m)
Length [at waterline]not available
Length - Feet26.75
Length - Feet24
Length overall - Detail26 ft. 9 in. (8.2 m)
Length overall - Detail24 ft. 0 in
Length overall - Meters8.15
Length overall - Meters7.32
Length overall - Inches321
Length overall - Inches288
Draft [drive up] - Detailnot available
Draft [drive up] - Detail13 in
Draft [drive up] metersnot available
Draft [drive up] meters0.33
Draft [drive up] inchesnot available
Draft [drive up] inches13
Draft [max] - Detailnot available
Draft [max] - Detail22 in
Draft [max] - Metersnot available
Draft [max] - Meters0.56
Draft [max] - Inchesnot available
Draft [max] - Inches22
Length [deck]not available
Length [deck]24 ft
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter25 in. (0.64 m)
Tube diameter25 in
Engine and Drivetrain
Fuel tank capacity - Detail2 Tubes: 32 gal. (121 l) 3 Tubes: 50 gal. (189 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters189.27
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal5
Fuel tank capacity - Galnot available
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeOutboard
Horsepower2 Tubes Max: 200 hp (149 kW) 3 Tubes Max: 300 hp (224 kW)
Horsepowernot available
Engine maxnot available
Engine max140 hp W/Performance-III Package: 200 hp
Operational Info
Maximum capacity2 Tubes: 2,587 lbs. (1,173 kg) 3 Tubes: 2,907 lbs. (1,319 kg)
Maximum capacity2,305 lbs
Maximum people2 Tubes: 14 3 Tubes: 15
Maximum people17

Harris Flotebote Grand Mariner SL 250 2013 vs Harris Flotebote Super Sunliner 240 2005 — Common Questions

Which is the larger boat — the Harris Flotebote Grand Mariner SL 250 2013 or the Harris Flotebote Super Sunliner 240 2005?
The Harris Flotebote Grand Mariner SL 250 2013 is the longer of the two at 26,8 feet overall. The Harris Flotebote Super Sunliner 240 2005 comes in at 24,0 feet, making it roughly 2,8 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Harris Flotebote Grand Mariner SL 250 2013 or the Harris Flotebote Super Sunliner 240 2005?
For trailering, the Harris Flotebote Super Sunliner 240 2005 has the edge at 235 lbs dry weight versus 3 876 lbs for the Harris Flotebote Grand Mariner SL 250 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 Harris Flotebote Super Sunliner 240 2005 is rated to a maximum of 140 hp, giving it the larger power ceiling. The Harris Flotebote Grand Mariner SL 250 2013 tops out at 2 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 Harris Flotebote Grand Mariner SL 250 2013 is Coast Guard rated for 2 passengers, while the Harris Flotebote Super Sunliner 240 2005 is certified for 17. 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Harris Flotebote Grand Mariner SL 250 2013 and Harris Flotebote Super Sunliner 240 2005 share an 8 ft. 6 in. (2.6 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 Harris Flotebote Grand Mariner SL 250 2013 and Harris Flotebote Super Sunliner 240 2005 from the same manufacturer?
Yes — both the Harris Flotebote Grand Mariner SL 250 2013 and the Harris Flotebote Super Sunliner 240 2005 are built by Harris Flotebote. 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.