Alumacraft Navigator 175  2004 boat specs
Alumacraft
Alumacraft Navigator 175 2004
2004
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VS
Alumacraft Trophy 205 2007 boat specs
Alumacraft
Alumacraft Trophy 205 2007
2007
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Alumacraft Navigator 175 2004 vs Alumacraft Trophy 205 2007 — Same Brand, Different Boat

The Alumacraft Navigator 175 2004 vs Alumacraft Trophy 205 2007 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 225 hp, the Alumacraft Trophy 205 2007 has a 145-hp advantage over the Alumacraft Navigator 175 2004's 80-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 4 gal and 6 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Alumacraft Trophy 205 2007 is rated for 9 passengers, while the Alumacraft Navigator 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 Trophy 205 2007 could be the deciding factor.

Bottom line: Choose the Alumacraft Trophy 205 2007 if your priority is putting more people on the water — it handles 9 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Alumacraft Navigator 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 175
ModelTrophy 205
Model Year2004
Model Year2007
Measurements / Dimensions
Beam93 in
Beam98 in. (2.4 m)
Beam - Meters2.36
Beam - Meters2.49
Beam - Inches93
Beam - Inches98
Draft [drive up] - Detailn/a
Draft [drive up] - Detailnot available
Weight - Detail1245 lbs
Weight - Detail1,915 lbs. (884 kg)
Weight - kg564.72
Weight - kg868.63
Weight - lbs.1245
Weight - lbs.1915
Height - Detail37 in
Height - Detailnot available
Height - Meters0.94
Height - Metersnot available
Height - Inches37
Height - Inchesnot available
Height [transom]20 in. Width: 93 in
Height [transom]25 in. (0.64 m)
Length overall - Detail17 ft. 3 in
Length overall - Detail20 ft. 8 in. (6.2 m)
Length overall - Meters5.26
Length overall - Meters6.3
Length overall - Inches207
Length overall - Inches248
Depth - Detailnot available
Depth - DetailMaximum: 47 in. (1.2 m) To Floor: 27 in. (0.67 m)
Depth - Centimetersnot available
Depth - Centimeters119.38
Depth - Inchesnot available
Depth - Inches47
Width [transom] - Detailnot available
Width [transom] - Detail96 in. (2.42 m)
Length - Metersnot available
Length - Meters6.2
Length - Feetnot available
Length - Feet2
Length - Inchesnot available
Length - Inches8
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessnot available
Hull thicknessBottom: 0.100 in. (2.5 mm)
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail40 gal
Fuel tank capacity - Detail60 gal. (227 l)
Fuel tank capacity - Liters151.42
Fuel tank capacity - Liters227.12
Fuel tank capacity - Gal4
Fuel tank capacity - Gal6
Engine max80 hp
Engine max225 hp (167 kW)
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Water capacityn/a
Water capacitynot available
Maximum people5 persons
Maximum people9
Maximum capacitynot available
Maximum capacity2,350 lbs. (1,066 kg)
Trailer Info
Trailer - Detailn/a
Trailer - Detailnot available

Alumacraft Navigator 175 2004 vs Alumacraft Trophy 205 2007 — Common Questions

Which is easier to trailer — the Alumacraft Navigator 175 2004 or the Alumacraft Trophy 205 2007?
For trailering, the Alumacraft Navigator 175 2004 has the edge at 1 245 lbs dry weight versus 1 915 lbs for the Alumacraft Trophy 205 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 Alumacraft Trophy 205 2007 is rated to a maximum of 225 hp, giving it the larger power ceiling. The Alumacraft Navigator 175 2004 tops out at 80 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 175 2004 is Coast Guard rated for 5 passengers, while the Alumacraft Trophy 205 2007 is certified for 9. 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 Trophy 205 2007 measures 98" wide, compared to 93" for the Alumacraft Navigator 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.
How do the fuel tanks compare on the Alumacraft Navigator 175 2004 and Alumacraft Trophy 205 2007?
Both boats carry similar fuel loads — 4 gallons and 6 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Alumacraft Navigator 175 2004 and Alumacraft Trophy 205 2007 from the same manufacturer?
Yes — both the Alumacraft Navigator 175 2004 and the Alumacraft Trophy 205 2007 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.