Alumacraft Navigator 165 CS 2003 boat specs
Alumacraft
Alumacraft Navigator 165 CS 2003
2003
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VS
Alumacraft Tournament Pro 185 2006 boat specs
Alumacraft
Alumacraft Tournament Pro 185 2006
2006
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Alumacraft Navigator 165 CS 2003 vs Alumacraft Tournament Pro 185 2006 — Same Brand, Different Boat

The Alumacraft Navigator 165 CS 2003 vs Alumacraft Tournament Pro 185 2006 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 100 hp, the Alumacraft Tournament Pro 185 2006 has a 25-hp advantage over the Alumacraft Navigator 165 CS 2003's 75-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 2006 carries 41 gallons versus 22 gallons in the Alumacraft Navigator 165 CS 2003. 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 2006 is rated for 6 passengers, while the Alumacraft Navigator 165 CS 2003 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 2006 could be the deciding factor.

Bottom line: Choose the Alumacraft Tournament Pro 185 2006 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 165 CS 2003 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 165 CS
ModelTournament Pro 185
Model Year2003
Model Year2006
Measurements / Dimensions
Beam82 in
Beam96 in. (2.43 m)
Beam - Meters2.08
Beam - Meters2.44
Beam - Inches82
Beam - Inches96
Draft [drive up] - Detailn/a
Draft [drive up] - Detailnot available
Weight - Detail880 lbs
Weight - Detail1,475 lbs. (669 kg)
Weight - kg399.16
Weight - kg669.05
Weight - lbs.88
Weight - lbs.1475
Height - Detail36 in
Height - Detailnot available
Height - Meters0.91
Height - Metersnot available
Height - Inches36
Height - Inchesnot available
Height [transom]82 in. 20 in
Height [transom]25 in. (.64 m)
Length overall - Detail16 ft. 5 in
Length overall - Detail18 ft. 11 in. (5.76 m)
Length overall - Meters5
Length overall - Meters5.77
Length overall - Inches197
Length overall - Inches227
Depth - Detailnot available
Depth - DetailMaximum: 42 in. (1.1 m) To Floor: 22 in. (.56 m)
Depth - Centimetersnot available
Depth - Centimeters106.68
Depth - Inchesnot available
Depth - Inches42
Width [transom] - Detailnot available
Width [transom] - Detail95 in. (2.41 m)
Length - Metersnot available
Length - Meters5.76
Length - Feetnot available
Length - Feet18
Length - Inchesnot available
Length - Inches11
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessnot available
Hull thicknessBottom: .100 in. (2.5 mm) Sides: .080 in. (2.0 mm) 2XB Bow?2nd Plate: .100 in. 2XB Bottom?2nd Plate: .080 in
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail22 gal
Fuel tank capacity - Detail41 gal. with reserve (155 l)
Fuel tank capacity - Liters83.28
Fuel tank capacity - Liters155.2
Fuel tank capacity - Gal22
Fuel tank capacity - Gal41
Engine max75 hp
Engine max100 hp (75 kw)
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Water capacityn/a
Water capacitynot available
Maximum people5 persons
Maximum people6
Maximum capacitynot available
Maximum capacity1,750 lbs. (793 kg)
Trailer Info
Trailer - Detailn/a
Trailer - Detailnot available

Alumacraft Navigator 165 CS 2003 vs Alumacraft Tournament Pro 185 2006 — Common Questions

Which is easier to trailer — the Alumacraft Navigator 165 CS 2003 or the Alumacraft Tournament Pro 185 2006?
For trailering, the Alumacraft Navigator 165 CS 2003 has the edge at 88 lbs dry weight versus 1 475 lbs for the Alumacraft Tournament Pro 185 2006. 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 2006 is rated to a maximum of 100 hp, giving it the larger power ceiling. The Alumacraft Navigator 165 CS 2003 tops out at 75 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 165 CS 2003 is Coast Guard rated for 5 passengers, while the Alumacraft Tournament Pro 185 2006 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 2006 measures 96" wide, compared to 82" for the Alumacraft Navigator 165 CS 2003. 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 165 CS 2003 or the Alumacraft Tournament Pro 185 2006?
The Alumacraft Tournament Pro 185 2006 has the bigger tank at 41 gallons, versus 22 gallons on the Alumacraft Navigator 165 CS 2003. 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 165 CS 2003 and Alumacraft Tournament Pro 185 2006 from the same manufacturer?
Yes — both the Alumacraft Navigator 165 CS 2003 and the Alumacraft Tournament Pro 185 2006 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.