Alumacraft Navigator 185 CS 2005 boat specs
Alumacraft
Alumacraft Navigator 185 CS 2005
2005
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VS
Alumacraft Trophy Sport  165 2002 boat specs
Alumacraft
Alumacraft Trophy Sport 165 2002
2002
View full specs →

Alumacraft Navigator 185 CS 2005 vs Alumacraft Trophy Sport 165 2002 — Same Brand, Different Boat

The Alumacraft Navigator 185 CS 2005 vs Alumacraft Trophy Sport 165 2002 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 150 hp, the Alumacraft Navigator 185 CS 2005 has a 35-hp advantage over the Alumacraft Trophy Sport 165 2002's 115-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 Trophy Sport 165 2002 carries 23 gallons versus 4 gallons in the Alumacraft Navigator 185 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 Navigator 185 CS 2005 is rated for 6 passengers, while the Alumacraft Trophy Sport 165 2002 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Navigator 185 CS 2005 could be the deciding factor.

Bottom line: Choose the Alumacraft Navigator 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 Trophy Sport 165 2002 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 185 CS
ModelTrophy Sport 165
Model Year2005
Model Year2002
Measurements / Dimensions
Beam96 in. (2.44 m)
Beam81 in
Beam - Meters2.44
Beam - Meters2.06
Beam - Inches96
Beam - Inches81
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 - Detail1351 lbs. (613 kg)
Weight - Detail1045 lbs
Weight - kg612.8
Weight - kg474
Weight - lbs.1351
Weight - lbs.1045
Width [transom] - Detail93 in. (2.36 m)
Width [transom] - Detailnot available
Height [transom]20 in. (.51 m)
Height [transom]20 in
Length - Meters5.66
Length - Metersnot available
Length - Feet18
Length - Feetnot available
Length - Inches7
Length - Inchesnot available
Length overall - Detail18 ft. 7 in. (5.66 m)
Length overall - Detail16 ft. 11 in
Length overall - Meters5.66
Length overall - Meters5.16
Length overall - Inches223
Length overall - Inches203
Height - Detailnot available
Height - Detail38 in. depth
Height - Metersnot available
Height - Meters0.97
Height - Inchesnot available
Height - Inches38
Body / Hull
Hull thicknessBottom: .098 in. (2.5 mm) Sides: .80 in. (2.0 mm) 2XB Bow?2nd plate: .098 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 - Detail23 gal
Fuel tank capacity - Liters151.42
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal4
Fuel tank capacity - Gal23
Engine max150 hp (111 kw)
Engine max115 hp
Operational Info
Maximum people6
Maximum people5 persons

Alumacraft Navigator 185 CS 2005 vs Alumacraft Trophy Sport 165 2002 — Common Questions

Which is easier to trailer — the Alumacraft Navigator 185 CS 2005 or the Alumacraft Trophy Sport 165 2002?
For trailering, the Alumacraft Trophy Sport 165 2002 has the edge at 1 045 lbs dry weight versus 1 351 lbs for the Alumacraft Navigator 185 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 Navigator 185 CS 2005 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Alumacraft Trophy Sport 165 2002 tops out at 115 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 185 CS 2005 is Coast Guard rated for 6 passengers, while the Alumacraft Trophy Sport 165 2002 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 Navigator 185 CS 2005 measures 96" wide, compared to 81" for the Alumacraft Trophy Sport 165 2002. 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 185 CS 2005 or the Alumacraft Trophy Sport 165 2002?
The Alumacraft Trophy Sport 165 2002 has the bigger tank at 23 gallons, versus 4 gallons on the Alumacraft Navigator 185 CS 2005. That 19-gallon difference translates to roughly 57–95 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Alumacraft Navigator 185 CS 2005 and Alumacraft Trophy Sport 165 2002 from the same manufacturer?
Yes — both the Alumacraft Navigator 185 CS 2005 and the Alumacraft Trophy Sport 165 2002 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.