Alumacraft Dominator 185 Sport 2012 boat specs
Alumacraft
Alumacraft Dominator 185 Sport 2012
2012
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VS
Alumacraft Navigator 175 CS 2005 boat specs
Alumacraft
Alumacraft Navigator 175 CS 2005
2005
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Alumacraft Dominator 185 Sport 2012 vs Alumacraft Navigator 175 CS 2005 — Same Brand, Different Boat

The Alumacraft Dominator 185 Sport 2012 vs Alumacraft Navigator 175 CS 2005 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 — Alumacraft Dominator 185 Sport 2012 at 18,8 ft versus Alumacraft Navigator 175 CS 2005 at 17,0 ft. Weight tells a clearer story for trailering families: the Alumacraft Navigator 175 CS 2005 tips the scales at 1 245 lbs — 1 092 lbs less than the Alumacraft Dominator 185 Sport 2012 at 153 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.

Both boats share a closely matched power ceiling — 150 hp for the Alumacraft Dominator 185 Sport 2012 and 140 hp for the Alumacraft Navigator 175 CS 2005. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Alumacraft Dominator 185 Sport 2012 carries 35 gallons versus 4 gallons in the Alumacraft Navigator 175 CS 2005. 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 Dominator 185 Sport 2012 is rated for 6 passengers, while the Alumacraft Navigator 175 CS 2005 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Dominator 185 Sport 2012 could be the deciding factor.

Bottom line: Choose the Alumacraft Dominator 185 Sport 2012 if your priority is putting more people on the water — it handles 6 passengers and at 18,8 ft it has the deck room to back that rating up comfortably. The Alumacraft Navigator 175 CS 2005 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 185 Sport
ModelNavigator 175 CS
Model Year2012
Model Year2005
Measurements / Dimensions
Beam94 in. (2.38 m)
Beam93 in. (2.36 m)
Beam - Meters2.39
Beam - Meters2.36
Beam - Inches94
Beam - Inches93
Depth - Detail43 in. (1.09 m) To Floor: 23 in. (0.58 m)
Depth - Detail37 in. (.94 m)
Depth - Centimeters109.22
Depth - Centimeters93.98
Depth - Inches43
Depth - Inches37
Weight - Detail1,530 lbs. (694 kg)
Weight - Detail1245 lbs. (565 kg)
Weight - kg694
Weight - kg564.72
Weight - lbs.153
Weight - lbs.1245
Width [transom] - Detail93 in. (2.36 m)
Width [transom] - Detail93 in. (2.36 m)
Height [transom]25 in. (0.64 m)
Height [transom]20 in. (.51 m)
Length - Feet18.75
Length - Feet17
Length overall - Detail18 ft. 9 in. (5.71 m)
Length overall - Detail17 ft. 3 in. (5.26 m)
Length overall - Meters5.72
Length overall - Meters5.26
Length overall - Inches225
Length overall - Inches207
Length - Metersnot available
Length - Meters5.26
Length - Inchesnot available
Length - Inches3
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull thicknessBottom and Sides: 0.080 in. (2 mm)
Hull thicknessBottom: .080 in. (2.0 mm) Sides: .080 in. (2.0 mm) 2XB Bow?2nd plate: .080 in. 2XB Bottom?2nd plate: .080 in
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Fuel tank capacity - Detail35 gal. (132 l)
Fuel tank capacity - Detail40 gal. (151 l)
Fuel tank capacity - Liters132.49
Fuel tank capacity - Liters151.42
Fuel tank capacity - Gal35
Fuel tank capacity - Gal4
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typenot available
Engine max150 hp (112 kW)
Engine max140 hp (104 kw)
Operational Info
StorageBow Livewell: 22 gal. (83.3 l) Aft Livewell: 13 gal. (49.21 l)
Storagenot available
Maximum capacity1,600 lbs. (726 kg)
Maximum capacitynot available
Maximum people6
Maximum people5

Alumacraft Dominator 185 Sport 2012 vs Alumacraft Navigator 175 CS 2005 — Common Questions

Which is the larger boat — the Alumacraft Dominator 185 Sport 2012 or the Alumacraft Navigator 175 CS 2005?
The Alumacraft Dominator 185 Sport 2012 is the longer of the two at 18,8 feet overall. The Alumacraft Navigator 175 CS 2005 comes in at 17,0 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 Alumacraft Dominator 185 Sport 2012 or the Alumacraft Navigator 175 CS 2005?
For trailering, the Alumacraft Dominator 185 Sport 2012 has the edge at 153 lbs dry weight versus 1 245 lbs for the Alumacraft Navigator 175 CS 2005. 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 Dominator 185 Sport 2012 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Alumacraft Navigator 175 CS 2005 tops out at 140 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 185 Sport 2012 is Coast Guard rated for 6 passengers, while the Alumacraft Navigator 175 CS 2005 is certified for 5. 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 Alumacraft Dominator 185 Sport 2012 measures 94" wide, compared to 93" for the Alumacraft Navigator 175 CS 2005. 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 185 Sport 2012 or the Alumacraft Navigator 175 CS 2005?
The Alumacraft Dominator 185 Sport 2012 has the bigger tank at 35 gallons, versus 4 gallons on the Alumacraft Navigator 175 CS 2005. That 31-gallon difference translates to roughly 93–155 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Alumacraft Dominator 185 Sport 2012 and Alumacraft Navigator 175 CS 2005 from the same manufacturer?
Yes — both the Alumacraft Dominator 185 Sport 2012 and the Alumacraft Navigator 175 CS 2005 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.