Mariah FS18 Fish & Ski 2007 boat specs
Mariah
Mariah FS18 Fish & Ski 2007
2007
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VS
Mariah SX19 Bow Rider 2008 boat specs
Mariah
Mariah SX19 Bow Rider 2008
2008
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Mariah FS18 Fish & Ski 2007 vs Mariah SX19 Bow Rider 2008 — Same Brand, Different Boat

The Mariah FS18 Fish & Ski 2007 vs Mariah SX19 Bow Rider 2008 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 FS18 Fish & Ski 2007 at 18,0 ft versus Mariah SX19 Bow Rider 2008 at 19,0 ft. Weight tells a clearer story for trailering families: the Mariah FS18 Fish & Ski 2007 tips the scales at 295 lbs — 267 lbs more than the Mariah SX19 Bow Rider 2008 at 28 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 220 hp, the Mariah SX19 Bow Rider 2008 has a 30-hp advantage over the Mariah FS18 Fish & Ski 2007's 190-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 SX19 Bow Rider 2008 carries 38 gallons versus 22 gallons in the Mariah FS18 Fish & Ski 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 FS18 Fish & Ski 2007 is rated for 8 passengers, while the Mariah SX19 Bow Rider 2008 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Mariah FS18 Fish & Ski 2007 could be the deciding factor.

Bottom line: Choose the Mariah FS18 Fish & Ski 2007 if your priority is putting more people on the water — it handles 8 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Mariah SX19 Bow Rider 2008 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
ModelFS18 Fish & Ski
ModelSX19 Bow Rider
Model Year2007
Model Year2008
Measurements / Dimensions
Beam7 ft. 8 in. (2.3 m)
Beam8 ft. 2 in. (2.5 m)
Beam - Meters2.34
Beam - Meters2.49
Beam - Inches92
Beam - Inches98
Deadrise18℃
Deadrise19℃
Weight - Detail2,950 lbs. (1,339 kg)
Weight - Detail2,800 lbs. (1,270 kg)
Weight - kg1338.1
Weight - kg1270.06
Weight - lbs.295
Weight - lbs.28
Length - Meters5.5
Length - Meters5.9
Length - Feet18
Length - Feet19
Length overall - Detail18 ft. 0 in. (5.5 m)
Length overall - Detail19 ft. 3 in. (5.9 m)
Length overall - Meters5.49
Length overall - Meters5.87
Length overall - Inches216
Length overall - Inches231
Length - Inchesnot available
Length - Inches3
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail22 gal. (83 l)
Fuel tank capacity - Detail38 gal. (144 l)
Fuel tank capacity - Liters83.28
Fuel tank capacity - Liters143.85
Fuel tank capacity - Gal22
Fuel tank capacity - Gal38
Fuel typeGas
Fuel typeGas
Drive typeI/O
Drive typeI/O
Engine max190 hp (142 kW)
Engine max220 hp (164 kW)
Operational Info
Maximum capacityPerson: 1,250 lbs. (567 kg) Total: 3,100 lbs. (1,407 kg)
Maximum capacityTotal: 1,590 lbs. (721 kg) Maximum: 3,400 lbs. (1,544 kg)
Maximum people8
Maximum people1

Mariah FS18 Fish & Ski 2007 vs Mariah SX19 Bow Rider 2008 — Common Questions

Which is the larger boat — the Mariah FS18 Fish & Ski 2007 or the Mariah SX19 Bow Rider 2008?
The Mariah SX19 Bow Rider 2008 is the longer of the two at 19,0 feet overall. The Mariah FS18 Fish & Ski 2007 comes in at 18,0 feet, making it roughly 1,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Mariah FS18 Fish & Ski 2007 or the Mariah SX19 Bow Rider 2008?
For trailering, the Mariah SX19 Bow Rider 2008 has the edge at 28 lbs dry weight versus 295 lbs for the Mariah FS18 Fish & Ski 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 SX19 Bow Rider 2008 is rated to a maximum of 220 hp, giving it the larger power ceiling. The Mariah FS18 Fish & Ski 2007 tops out at 190 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 FS18 Fish & Ski 2007 is Coast Guard rated for 8 passengers, while the Mariah SX19 Bow Rider 2008 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 SX19 Bow Rider 2008 measures 98" wide, compared to 92" for the Mariah FS18 Fish & Ski 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 FS18 Fish & Ski 2007 or the Mariah SX19 Bow Rider 2008?
The Mariah SX19 Bow Rider 2008 has the bigger tank at 38 gallons, versus 22 gallons on the Mariah FS18 Fish & Ski 2007. That 16-gallon difference translates to roughly 48–80 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Mariah FS18 Fish & Ski 2007 and Mariah SX19 Bow Rider 2008 from the same manufacturer?
Yes — both the Mariah FS18 Fish & Ski 2007 and the Mariah SX19 Bow Rider 2008 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.