Starcraft Marine Sea Star 2010 I/O 2006 boat specs
Starcraft Marine
Starcraft Marine Sea Star 2010 I/O 2006
2006
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VS
Starcraft Marine STX 186 Viper 2013 boat specs
Starcraft Marine
Starcraft Marine STX 186 Viper 2013
2013
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Starcraft Marine Sea Star 2010 I/O 2006 vs Starcraft Marine STX 186 Viper 2013: Same Brand, Different Boat

The Starcraft Marine Sea Star 2010 I/O 2006 vs Starcraft Marine STX 186 Viper 2013 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 - Starcraft Marine Sea Star 2010 I/O 2006 at 20,0 ft versus Starcraft Marine STX 186 Viper 2013 at 18,5 ft. Weight tells a clearer story for trailering families: the Starcraft Marine Sea Star 2010 I/O 2006 tips the scales at 2 325 lbs - 562 lbs more than the Starcraft Marine STX 186 Viper 2013 at 1 763 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 Starcraft Marine STX 186 Viper 2013 tops out at 175 hp. Engine specs for the Starcraft Marine Sea Star 2010 I/O 2006 aren't listed - confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Starcraft Marine Sea Star 2010 I/O 2006 carries 51 gallons versus 43 gallons in the Starcraft Marine STX 186 Viper 2013. 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 Starcraft Marine Sea Star 2010 I/O 2006 is rated for 12 passengers, while the Starcraft Marine STX 186 Viper 2013 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine Sea Star 2010 I/O 2006 could be the deciding factor.

Bottom line: Choose the Starcraft Marine Sea Star 2010 I/O 2006 if your priority is putting more people on the water - it handles 12 passengers and at 20,0 ft it has the deck room to back that rating up comfortably. The Starcraft Marine STX 186 Viper 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakeStarcraft Marine
MakeStarcraft Marine
ModelSea Star 2010 I/O
ModelSTX 186 Viper
Model Year2006
Model Year2013
Measurements / Dimensions
Beam102 in. (259 cm)
Beam96 in.
Beam - Meters2.59
Beam - Meters2.44
Beam - Inches102
Beam - Inches96
Deadrise13℃
Deadrisenot available
Depth - Detail30 in. (76 cm)
Depth - Detail24 in.
Depth - Centimeters76.2
Depth - Centimeters60.96
Depth - Inches30
Depth - Inches24
Weight - Detail2,325 lbs. (1,054.6 kg)
Weight - Detail1,763 lbs.
Weight - kg1054.6
Weight - kg799.68
Weight - lbs.2325
Weight - lbs.1763
Width [transom] - Detail94 in. (239 cm) Chine Width (at transom): 86 in. (218 cm)
Width [transom] - Detail92 in.
Length - Meters6.2
Length - Metersnot available
Length - Feet20
Length - Feet18.5
Length - Inches4
Length - Inchesnot available
Length overall - Detail20 ft. 4 in. (6.2 m)
Length overall - Detail18 ft. 6 in.
Length overall - Meters6.2
Length overall - Meters5.64
Length overall - Inches244
Length overall - Inches222
Height [transom]not available
Height [transom]25 in.
Body / Hull
Hull materialFiberglass
Hull materialAluminum
Hull typenot available
Hull typeDeep Vee
Engine and Drivetrain
Engine/s standard3.0 l TKS 135 hp (101 kw)
Engine/s standardnot available
Fuel tank capacity - Detail51 gal. (193.1 l)
Fuel tank capacity - Detail43 gal.
Fuel tank capacity - Liters193.06
Fuel tank capacity - Liters162.77
Fuel tank capacity - Gal51
Fuel tank capacity - Gal43
Drive typeI/O
Drive typeOutboard
Engine makenot available
Engine makeYamaha
Engine modelnot available
Engine modelF115XA
Fuel typenot available
Fuel typeGas
Engine maxnot available
Engine max175 hp
Operational Info
Maximum capacity1,890 lbs. (857.3 kg)
Maximum capacity1,750 lbs.
Maximum people12
Maximum people6
Trailer Info
Trailer - Length over all25 ft. 11 in. (7.9 m)
Trailer - Length over all22 ft. 4 in.
Trailer - WeightW/Std. Eng.: 3,335 lbs. (1,512.7 kg)
Trailer - Weight3,491 lbs.

Starcraft Marine Sea Star 2010 I/O 2006 vs Starcraft Marine STX 186 Viper 2013 - Common Questions

Which is the larger boat - the Starcraft Marine Sea Star 2010 I/O 2006 or the Starcraft Marine STX 186 Viper 2013?
The Starcraft Marine Sea Star 2010 I/O 2006 is the longer of the two at 20,0 feet overall. The Starcraft Marine STX 186 Viper 2013 comes in at 18,5 feet, making it roughly 1,5 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the Starcraft Marine Sea Star 2010 I/O 2006 or the Starcraft Marine STX 186 Viper 2013?
For trailering, the Starcraft Marine STX 186 Viper 2013 has the edge at 1 763 lbs dry weight versus 2 325 lbs for the Starcraft Marine Sea Star 2010 I/O 2006. 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.
What is the maximum horsepower rating for these boats?
The Starcraft Marine STX 186 Viper 2013 has a documented max rating of 175 hp. Engine specifications for the Starcraft Marine Sea Star 2010 I/O 2006 were not available in our database - check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Starcraft Marine Sea Star 2010 I/O 2006 is Coast Guard rated for 12 passengers, while the Starcraft Marine STX 186 Viper 2013 is certified for 6. 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 Starcraft Marine Sea Star 2010 I/O 2006 measures 102" wide, compared to 96" for the Starcraft Marine STX 186 Viper 2013. 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 Starcraft Marine Sea Star 2010 I/O 2006 or the Starcraft Marine STX 186 Viper 2013?
The Starcraft Marine Sea Star 2010 I/O 2006 has the bigger tank at 51 gallons, versus 43 gallons on the Starcraft Marine STX 186 Viper 2013. That 8-gallon difference translates to roughly 24–40 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Starcraft Marine Sea Star 2010 I/O 2006 and Starcraft Marine STX 186 Viper 2013 from the same manufacturer?
Yes - both the Starcraft Marine Sea Star 2010 I/O 2006 and the Starcraft Marine STX 186 Viper 2013 are built by Starcraft Marine. 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.