Mariah G21  2010 boat specs
Mariah
Mariah G21 2010
2010
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Mariah SX19 Bow Rider 2007 boat specs
Mariah
Mariah SX19 Bow Rider 2007
2007
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Mariah G21 2010 vs Mariah SX19 Bow Rider 2007 — Same Brand, Different Boat

The Mariah G21 2010 vs Mariah SX19 Bow Rider 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 — Mariah G21 2010 at 20,8 ft versus Mariah SX19 Bow Rider 2007 at 19,0 ft. Weight tells a clearer story for trailering families: the Mariah SX19 Bow Rider 2007 tips the scales at 315 lbs — 276 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 270 hp, the Mariah G21 2010 has a 50-hp advantage over the Mariah SX19 Bow Rider 2007's 220-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 38 gallons in the Mariah SX19 Bow Rider 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 1 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.

Bottom line: Performance buyers should lean toward the Mariah G21 2010 and its 270-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Mariah SX19 Bow Rider 2007 with its 220-hp rating is the more economical daily driver.
General Boat Info
MakeMariah
MakeMariah
ModelG21
ModelSX19 Bow Rider
Model Year201
Model Year2007
Measurements / Dimensions
Beam8 ft. 6 in. (2.6 m)
Beam8 ft. 2 in. (2.5 m)
Beam - Meters2.59
Beam - Meters2.49
Beam - Inches102
Beam - Inches98
Deadrise20℃
Deadrise19℃
Weight - Detail3,300 lbs. (1,497 kg) Maximum: 3,900 lbs. (1,769 kg)
Weight - Detail3,150 lbs. (1,430 kg)
Weight - kg1769.01
Weight - kg1428.81
Weight - lbs.39
Weight - lbs.315
Length - Meters6.1
Length - Meters5.9
Length - Feet20.75
Length - Feet19
Length overall - Detail20 ft. 9 in. (6.1 m)
Length overall - Detail19 ft. 3 in. (5.9 m)
Length overall - Meters6.32
Length overall - Meters5.87
Length overall - Inches249
Length overall - Inches231
Length - Inchesnot available
Length - Inches3
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 - Detail38 gal. (144 l)
Fuel tank capacity - Liters166.56
Fuel tank capacity - Liters143.85
Fuel tank capacity - Gal44
Fuel tank capacity - Gal38
Fuel typeGas
Fuel typeGas
Drive typeI/O
Drive typeI/O
Engine max270 hp (201 kW)
Engine max220 hp (164 kW)
Performance
Maximum speed41-52 mph
Maximum speednot available
Operational Info
Maximum capacity1,750 lbs. (794 kg)
Maximum capacityPerson: 1,590 lbs. (721 kg) Total: 3,400 lbs. (1,544 kg)
Maximum people1
Maximum people1

Mariah G21 2010 vs Mariah SX19 Bow Rider 2007 — Common Questions

Which is the larger boat — the Mariah G21 2010 or the Mariah SX19 Bow Rider 2007?
The Mariah G21 2010 is the longer of the two at 20,8 feet overall. The Mariah SX19 Bow Rider 2007 comes in at 19,0 feet, making it roughly 1,8 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 SX19 Bow Rider 2007?
For trailering, the Mariah G21 2010 has the edge at 39 lbs dry weight versus 315 lbs for the Mariah SX19 Bow Rider 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 G21 2010 is rated to a maximum of 270 hp, giving it the larger power ceiling. The Mariah SX19 Bow Rider 2007 tops out at 220 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 SX19 Bow Rider 2007 is certified for 1. 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 is wider, and does it affect trailering?
The Mariah G21 2010 measures 102" wide, compared to 98" for the Mariah SX19 Bow Rider 2007. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Mariah G21 2010 or the Mariah SX19 Bow Rider 2007?
The Mariah G21 2010 has the bigger tank at 44 gallons, versus 38 gallons on the Mariah SX19 Bow Rider 2007. That 6-gallon difference translates to roughly 18–30 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Mariah G21 2010 and Mariah SX19 Bow Rider 2007 from the same manufacturer?
Yes — both the Mariah G21 2010 and the Mariah SX19 Bow Rider 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.