Alumacraft Navigator 175 Sport 2005 vs Alumacraft Trophy 180 2004 - Boat Spec Comparison

Q: Which is easier to trailer — the Alumacraft Navigator 175 Sport 2005 or the Alumacraft Trophy 180 2004?

For trailering, the Alumacraft Navigator 175 Sport 2005 has the edge at 1 345 lbs dry weight versus 1 392 lbs for the Alumacraft Trophy 180 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.

Q: Which boat can handle a bigger outboard?

The Alumacraft Trophy 180 2004 is rated to a maximum of 175 hp, giving it the larger power ceiling. The Alumacraft Navigator 175 Sport 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.

Q: How many people can each boat hold?

The Alumacraft Navigator 175 Sport 2005 is Coast Guard rated for 5 passengers, while the Alumacraft Trophy 180 2004 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.

Q: Which boat is wider, and does it affect trailering?

The Alumacraft Trophy 180 2004 measures 96" wide, compared to 93" for the Alumacraft Navigator 175 Sport 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.

Q: How do the fuel tanks compare on the Alumacraft Navigator 175 Sport 2005 and Alumacraft Trophy 180 2004?

Both boats carry similar fuel loads — 4 gallons and 4 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Q: Are the Alumacraft Navigator 175 Sport 2005 and Alumacraft Trophy 180 2004 from the same manufacturer?

Yes — both the Alumacraft Navigator 175 Sport 2005 and the Alumacraft Trophy 180 2004 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.

Boat Comparison

Alumacraft Navigator 175 Sport 2005 vs Alumacraft Trophy 180 2004

Alumacraft

Alumacraft Navigator 175 Sport 2005

2005

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Alumacraft

Alumacraft Trophy 180 2004

2004

View full specs →

Detailed Evaluation & Buyer Recommendation

Alumacraft Navigator 175 Sport 2005 vs Alumacraft Trophy 180 2004 — Same Brand, Different Boat

The Alumacraft Navigator 175 Sport 2005 vs Alumacraft Trophy 180 2004 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 175 hp, the Alumacraft Trophy 180 2004 has a 35-hp advantage over the Alumacraft Navigator 175 Sport 2005's 140-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 4 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Alumacraft Trophy 180 2004 is rated for 6 passengers, while the Alumacraft Navigator 175 Sport 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 Trophy 180 2004 could be the deciding factor.

Bottom line: Choose the Alumacraft Trophy 180 2004 if your priority is putting more people on the water — it handles 6 passengers and at 0,0 ft it has the deck room to back that rating up comfortably. The Alumacraft Navigator 175 Sport 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

ModelNavigator 175 Sport

ModelTrophy 18

Model Year2005

Model Year2004

Measurements / Dimensions

Beam93 in. (2.36 m)

Beam96 in

Beam - Meters2.36

Beam - Meters2.44

Beam - Inches93

Beam - Inches96

Depth - Detail39 in. (.99 m) Maximum to floor: 22 in. (.56 m)

Depth - Detailnot available

Depth - Centimeters99.06

Depth - Centimetersnot available

Depth - Inches39

Depth - Inchesnot available

Weight - Detail1345 lbs. (610 kg)

Weight - Detail1392 lbs

Weight - kg610.08

Weight - kg631.4

Weight - lbs.1345

Weight - lbs.1392

Width [transom] - Detail93 in. (2.36 m)

Width [transom] - Detailnot available

Height [transom]20 in. (.51 m)

Height [transom]20 in. Width: 96 in

Length - Meters5.33

Length - Metersnot available

Length - Feet17

Length - Feetnot available

Length - Inches6

Length - Inchesnot available

Length overall - Detail17 ft. 6 in. (5.33 m)

Length overall - Detail17 ft. 10 in

Length overall - Meters5.33

Length overall - Meters5.44

Length overall - Inches21

Length overall - Inches214

Draft [drive up] - Detailnot available

Draft [drive up] - Detailn/a

Height - Detailnot available

Height - Detail44 in

Height - Metersnot available

Height - Meters1.12

Height - Inchesnot available

Height - Inches44

Body / Hull

Hull thicknessBottom: .080 in. (2.0 mm) Sides: .80 in. (2.0 mm) 2XB Bow?2nd plate: .080 in. 2XB Bottom?2nd plate: .080 in

Hull thicknessnot available

Hull materialnot available

Hull materialAluminum

Engine and Drivetrain

Fuel tank capacity - Detail40 gal. (151 l)

Fuel tank capacity - Detail40 gal. (built-in reverse)

Fuel tank capacity - Liters151.42

Fuel tank capacity - Gal4

Engine max140 hp (104 kw)

Engine max175 hp

Operational Info

Maximum people5

Maximum people6 persons

Water capacitynot available

Water capacityn/a

Trailer Info

Trailer - Detailnot available

Trailer - Detailn/a

Alumacraft Navigator 175 Sport 2005 vs Alumacraft Trophy 180 2004 — Common Questions

Which is easier to trailer — the Alumacraft Navigator 175 Sport 2005 or the Alumacraft Trophy 180 2004?

For trailering, the Alumacraft Navigator 175 Sport 2005 has the edge at 1 345 lbs dry weight versus 1 392 lbs for the Alumacraft Trophy 180 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 Trophy 180 2004 is rated to a maximum of 175 hp, giving it the larger power ceiling. The Alumacraft Navigator 175 Sport 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 Navigator 175 Sport 2005 is Coast Guard rated for 5 passengers, while the Alumacraft Trophy 180 2004 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 Trophy 180 2004 measures 96" wide, compared to 93" for the Alumacraft Navigator 175 Sport 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.

How do the fuel tanks compare on the Alumacraft Navigator 175 Sport 2005 and Alumacraft Trophy 180 2004?

Both boats carry similar fuel loads — 4 gallons and 4 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 Sport 2005 and Alumacraft Trophy 180 2004 from the same manufacturer?

Yes — both the Alumacraft Navigator 175 Sport 2005 and the Alumacraft Trophy 180 2004 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.

← Alumacraft Navigator 175 Sport 2005 full specs ← Alumacraft Trophy 180 2004 full specs