Mariah G21  2010 boat specs
Mariah
Mariah G21 2010
2010
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Mariah SC25 Cuddy Cabin 2007 boat specs
Mariah
Mariah SC25 Cuddy Cabin 2007
2007
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Mariah G21 2010 vs Mariah SC25 Cuddy Cabin 2007 — Same Brand, Different Boat

The Mariah G21 2010 vs Mariah SC25 Cuddy Cabin 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.

Size is the most obvious dividing line here. The Mariah SC25 Cuddy Cabin 2007 measures 25,0 feet overall (2007), giving it roughly 4,3 additional feet of deck space compared to the Mariah G21 2010 at 20,8 feet (2010). Weight tells a clearer story for trailering families: the Mariah SC25 Cuddy Cabin 2007 tips the scales at 425 lbs — 386 lbs less than the Mariah G21 2010 at 39 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 425 hp, the Mariah SC25 Cuddy Cabin 2007 has a 155-hp advantage over the Mariah G21 2010's 270-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Mariah G21 2010 carries 44 gallons versus 9 gallons in the Mariah SC25 Cuddy Cabin 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Mariah SC25 Cuddy Cabin 2007 is rated for 12 passengers, while the Mariah G21 2010 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Mariah SC25 Cuddy Cabin 2007 could be the deciding factor.

Bottom line: Choose the Mariah SC25 Cuddy Cabin 2007 if your priority is putting more people on the water — it handles 12 passengers and at 25,0 ft it has the deck room to back that rating up comfortably. The Mariah G21 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.
General Boat Info
MakeMariah
MakeMariah
ModelG21
ModelSC25 Cuddy Cabin
Model Year201
Model Year2007
Measurements / Dimensions
Beam8 ft. 6 in. (2.6 m)
Beam8 ft. 6 in. (2.6 m)
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Deadrise20℃
Deadrise20℃
Weight - Detail3,300 lbs. (1,497 kg) Maximum: 3,900 lbs. (1,769 kg)
Weight - Detail4,250 lbs. (1,930 kg)
Weight - kg1769.01
Weight - kg1927.77
Weight - lbs.39
Weight - lbs.425
Length - Meters6.1
Length - Meters7.7
Length - Feet20.75
Length - Feet25
Length overall - Detail20 ft. 9 in. (6.1 m)
Length overall - Detail25 ft. 2 in. (7.7 m)
Length overall - Meters6.32
Length overall - Meters7.67
Length overall - Inches249
Length overall - Inches302
Length - Inchesnot available
Length - Inches2
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Fuel tank capacity - Detail44 gal. (167 l)
Fuel tank capacity - Detail90 gal. (341 l)
Fuel tank capacity - Liters166.56
Fuel tank capacity - Liters340.69
Fuel tank capacity - Gal44
Fuel tank capacity - Gal9
Fuel typeGas
Fuel typeGas
Drive typeI/O
Drive typeI/O
Engine max270 hp (201 kW)
Engine max425 hp (317 kW)
Performance
Maximum speed41-52 mph
Maximum speednot available
Operational Info
Maximum capacity1,750 lbs. (794 kg)
Maximum capacityPerson: 2,250 lbs. (1,021 kg) Total: 4,900 lbs. (2,225 kg)
Maximum people1
Maximum people12

Mariah G21 2010 vs Mariah SC25 Cuddy Cabin 2007 — Common Questions

Which is the larger boat — the Mariah G21 2010 or the Mariah SC25 Cuddy Cabin 2007?
The Mariah SC25 Cuddy Cabin 2007 is the longer of the two at 25,0 feet overall. The Mariah G21 2010 comes in at 20,8 feet, making it roughly 4,3 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Mariah G21 2010 or the Mariah SC25 Cuddy Cabin 2007?
For trailering, the Mariah G21 2010 has the edge at 39 lbs dry weight versus 425 lbs for the Mariah SC25 Cuddy Cabin 2007. 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 Mariah SC25 Cuddy Cabin 2007 is rated to a maximum of 425 hp, giving it the larger power ceiling. The Mariah G21 2010 tops out at 270 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 Mariah G21 2010 is Coast Guard rated for 1 passengers, while the Mariah SC25 Cuddy Cabin 2007 is certified for 12. 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 Mariah G21 2010 and Mariah SC25 Cuddy Cabin 2007 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.
Which boat has the larger fuel tank — the Mariah G21 2010 or the Mariah SC25 Cuddy Cabin 2007?
The Mariah G21 2010 has the bigger tank at 44 gallons, versus 9 gallons on the Mariah SC25 Cuddy Cabin 2007. That 35-gallon difference translates to roughly 105–175 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Mariah G21 2010 and Mariah SC25 Cuddy Cabin 2007 from the same manufacturer?
Yes — both the Mariah G21 2010 and the Mariah SC25 Cuddy Cabin 2007 are built by Mariah. 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.