Alumacraft Dominator 165 Sport 2006 boat specs
Alumacraft
Alumacraft Dominator 165 Sport 2006
2006
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VS
Alumacraft Tournament Sport 185 2008 boat specs
Alumacraft
Alumacraft Tournament Sport 185 2008
2008
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Alumacraft Dominator 165 Sport 2006 vs Alumacraft Tournament Sport 185 2008 — Same Brand, Different Boat

Matching a modified vee Alumacraft Dominator 165 Sport 2006 against a deep vee Alumacraft Tournament Sport 185 2008 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

On paper these two are close siblings in the size department — Alumacraft Dominator 165 Sport 2006 at 16,0 ft versus Alumacraft Tournament Sport 185 2008 at 18,0 ft. At 125 lbs and 168 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 175 hp, the Alumacraft Tournament Sport 185 2008 has a 85-hp advantage over the Alumacraft Dominator 165 Sport 2006's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Alumacraft Tournament Sport 185 2008 carries 38 gallons versus 23 gallons in the Alumacraft Dominator 165 Sport 2006. 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 Alumacraft Tournament Sport 185 2008 is rated for 6 passengers, while the Alumacraft Dominator 165 Sport 2006 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Tournament Sport 185 2008 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Alumacraft Tournament Sport 185 2008 comes in at 1 lbs per hp versus 1 lbs per hp for the Alumacraft Dominator 165 Sport 2006. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.

Bottom line: Choose the Alumacraft Tournament Sport 185 2008 if your priority is putting more people on the water — it handles 6 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Alumacraft Dominator 165 Sport 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
MakeAlumacraft
MakeAlumacraft
ModelDominator 165 Sport
ModelTournament Sport 185
Model Year2006
Model Year2008
Measurements / Dimensions
Beam90 in. (2.28 m)
Beam97 in. (2.46 m)
Beam - Meters2.29
Beam - Meters2.46
Beam - Inches9
Beam - Inches97
Depth - DetailMaximum: 42 in. (1.06 m) To floor: 21.4 in. (.54 m)
Depth - DetailMaximum: 43 in. (1.1 m) To Floor: 22 in. (0.56 m)
Depth - Centimeters106.68
Depth - Centimeters109.22
Depth - Inches42
Depth - Inches43
Weight - Detail1,250 lbs. (618 kg)
Weight - Detail1,680 lbs. (762 kg)
Weight - kg566.99
Weight - kg762.03
Weight - lbs.125
Weight - lbs.168
Width [transom] - Detail90 in. (2.28 m)
Width [transom] - Detail96 in. (2.4 m)
Height [transom]20 in. (.51 m)
Height [transom]25 in. (0.63 m)
Length - Meters5.05
Length - Meters5.8
Length - Feet16
Length - Feet18
Length - Inches7
Length - Inches3
Length overall - Detail16 ft. 7 in. (5.05 m)
Length overall - Detail18 ft. 3 in. (5.8 m)
Length overall - Meters5.05
Length overall - Meters5.56
Length overall - Inches199
Length overall - Inches219
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessBottom: .098 in. (2.4 mm) Sides: .080 in. (2.0 mm) 2XB Bow?2nd Plate: .080 in
Hull thicknessBottom: 0.100 in. (2.5 mm)
Hull typeModified Vee
Hull typeDeep Vee
Engine and Drivetrain
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Detail38 gal. (144 l)
Fuel tank capacity - Liters87.06
Fuel tank capacity - Liters143.85
Fuel tank capacity - Gal23
Fuel tank capacity - Gal38
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max90 hp (67 kw)
Engine max175 hp (130 kW)
Operational Info
Maximum capacity1,100 lbs. (499 kg)
Maximum capacity1,600 lbs. (726 kg)
Maximum people5
Maximum people6

Alumacraft Dominator 165 Sport 2006 vs Alumacraft Tournament Sport 185 2008 — Common Questions

Which is the larger boat — the Alumacraft Dominator 165 Sport 2006 or the Alumacraft Tournament Sport 185 2008?
The Alumacraft Tournament Sport 185 2008 is the longer of the two at 18,0 feet overall. The Alumacraft Dominator 165 Sport 2006 comes in at 16,0 feet, making it roughly 2,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Alumacraft Dominator 165 Sport 2006 or the Alumacraft Tournament Sport 185 2008?
For trailering, the Alumacraft Dominator 165 Sport 2006 has the edge at 125 lbs dry weight versus 168 lbs for the Alumacraft Tournament Sport 185 2008. 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 Alumacraft Tournament Sport 185 2008 is rated to a maximum of 175 hp, giving it the larger power ceiling. The Alumacraft Dominator 165 Sport 2006 tops out at 90 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 Alumacraft Dominator 165 Sport 2006 is Coast Guard rated for 5 passengers, while the Alumacraft Tournament Sport 185 2008 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 has the better power-to-weight ratio?
The Alumacraft Tournament Sport 185 2008 has a better power-to-weight ratio at 1 lbs per hp compared to 1 lbs per hp for the Alumacraft Dominator 165 Sport 2006. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Alumacraft Tournament Sport 185 2008 measures 97" wide, compared to 9" for the Alumacraft Dominator 165 Sport 2006. 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 Alumacraft Dominator 165 Sport 2006 or the Alumacraft Tournament Sport 185 2008?
The Alumacraft Tournament Sport 185 2008 has the bigger tank at 38 gallons, versus 23 gallons on the Alumacraft Dominator 165 Sport 2006. That 15-gallon difference translates to roughly 45–75 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Alumacraft Dominator 165 Sport 2006 and Alumacraft Tournament Sport 185 2008 from the same manufacturer?
Yes — both the Alumacraft Dominator 165 Sport 2006 and the Alumacraft Tournament Sport 185 2008 are built by Alumacraft. 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.