Alumacraft Navigator Sport 175 2004 boat specs
Alumacraft
Alumacraft Navigator Sport 175 2004
2004
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VS
Alumacraft Tournament Pro 185 CS 2005 boat specs
Alumacraft
Alumacraft Tournament Pro 185 CS 2005
2005
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Alumacraft Navigator Sport 175 2004 vs Alumacraft Tournament Pro 185 CS 2005 — Same Brand, Different Boat

The Alumacraft Navigator Sport 175 2004 vs Alumacraft Tournament Pro 185 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.

The power gap is worth calling out. Rated to 200 hp, the Alumacraft Tournament Pro 185 CS 2005 has a 60-hp advantage over the Alumacraft Navigator Sport 175 2004's 140-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 Pro 185 CS 2005 carries 41 gallons versus 4 gallons in the Alumacraft Navigator Sport 175 2004. 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 Pro 185 CS 2005 is rated for 6 passengers, while the Alumacraft Navigator Sport 175 2004 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 Pro 185 CS 2005 could be the deciding factor.

Bottom line: Choose the Alumacraft Tournament Pro 185 CS 2005 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 Navigator Sport 175 2004 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
ModelNavigator Sport 175
ModelTournament Pro 185 CS
Model Year2004
Model Year2005
Measurements / Dimensions
Beam93 in
Beam96 in. (2.43 m)
Beam - Meters2.36
Beam - Meters2.44
Beam - Inches93
Beam - Inches96
Weight - Detail1245 lbs
Weight - Detail1510 lbs. (684 kg)
Weight - kg564.72
Weight - kg684.92
Weight - lbs.1245
Weight - lbs.151
Length overall - Detail17 ft. 6 in
Length overall - Detail18 ft. 11 in. (5.76 m)
Length overall - Meters5.33
Length overall - Meters5.77
Length overall - Inches21
Length overall - Inches227
Depth - Detailnot available
Depth - Detail43 in. (1.1 m) Maximum to floor: 22 in. (.56 m)
Depth - Centimetersnot available
Depth - Centimeters109.22
Depth - Inchesnot available
Depth - Inches43
Width [transom] - Detailnot available
Width [transom] - Detail95 in. (2.41 m)
Height [transom]not available
Height [transom]25 in. (.64 m)
Length - Metersnot available
Length - Meters5.76
Length - Feetnot available
Length - Feet18
Length - Inchesnot available
Length - Inches11
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull thicknessnot available
Hull thicknessBottom: .100 in. (2.5 mm) Sides: .080 in
Engine and Drivetrain
Fuel tank capacity - Detail40 gal
Fuel tank capacity - Detail41 gal. with reserve (155 l)
Fuel tank capacity - Liters151.42
Fuel tank capacity - Liters155.2
Fuel tank capacity - Gal4
Fuel tank capacity - Gal41
Engine max140 HP
Engine max200 hp (148 kw)
Operational Info
Maximum people5 Persons
Maximum people6

Alumacraft Navigator Sport 175 2004 vs Alumacraft Tournament Pro 185 CS 2005 — Common Questions

Which is easier to trailer — the Alumacraft Navigator Sport 175 2004 or the Alumacraft Tournament Pro 185 CS 2005?
For trailering, the Alumacraft Tournament Pro 185 CS 2005 has the edge at 151 lbs dry weight versus 1 245 lbs for the Alumacraft Navigator Sport 175 2004. 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 Pro 185 CS 2005 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Alumacraft Navigator Sport 175 2004 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 Navigator Sport 175 2004 is Coast Guard rated for 5 passengers, while the Alumacraft Tournament Pro 185 CS 2005 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 Alumacraft Tournament Pro 185 CS 2005 measures 96" wide, compared to 93" for the Alumacraft Navigator Sport 175 2004. 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 Navigator Sport 175 2004 or the Alumacraft Tournament Pro 185 CS 2005?
The Alumacraft Tournament Pro 185 CS 2005 has the bigger tank at 41 gallons, versus 4 gallons on the Alumacraft Navigator Sport 175 2004. That 37-gallon difference translates to roughly 111–185 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Alumacraft Navigator Sport 175 2004 and Alumacraft Tournament Pro 185 CS 2005 from the same manufacturer?
Yes — both the Alumacraft Navigator Sport 175 2004 and the Alumacraft Tournament Pro 185 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.