Alumacraft Navigator 175 CS 2008 boat specs
Alumacraft
Alumacraft Navigator 175 CS 2008
2008
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VS
Alumacraft Tournament Pro 185 CS 2006 boat specs
Alumacraft
Alumacraft Tournament Pro 185 CS 2006
2006
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Alumacraft Navigator 175 CS 2008 vs Alumacraft Tournament Pro 185 CS 2006 — Same Brand, Different Boat

Matching a deep vee Alumacraft Navigator 175 CS 2008 against a modified vee Alumacraft Tournament Pro 185 CS 2006 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

On paper these two are close siblings in the size department — Alumacraft Navigator 175 CS 2008 at 17,0 ft versus Alumacraft Tournament Pro 185 CS 2006 at 18,0 ft. At 127 lbs and 151 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 200 hp, the Alumacraft Tournament Pro 185 CS 2006 has a 50-hp advantage over the Alumacraft Navigator 175 CS 2008's 150-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 38 gal and 41 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Alumacraft Tournament Pro 185 CS 2006 is rated for 6 passengers, while the Alumacraft Navigator 175 CS 2008 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 2006 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Alumacraft Tournament Pro 185 CS 2006 comes in at 1 lbs per hp versus 1 lbs per hp for the Alumacraft Navigator 175 CS 2008. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.

Bottom line: Choose the Alumacraft Tournament Pro 185 CS 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 175 CS 2008 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 CS
ModelTournament Pro 185 CS
Model Year2008
Model Year2006
Measurements / Dimensions
Beam95 in. (2.41 m)
Beam96 in. (2.43 m)
Beam - Meters2.41
Beam - Meters2.44
Beam - Inches95
Beam - Inches96
Depth - DetailMaximum: 42 in. (1.09 m) To Floor: 23 in. (0.57 m)
Depth - DetailMaximum: 42 in. (1.1 m) To Floor: 22 in. (.56 m)
Depth - Centimeters106.68
Depth - Centimeters106.68
Depth - Inches42
Depth - Inches42
Weight - Detail1,270 lbs. (576 kg)
Weight - Detail1,510 lbs. (684 kg)
Weight - kg576.06
Weight - kg684.92
Weight - lbs.127
Weight - lbs.151
Width [transom] - Detail93 in. (2.36 m)
Width [transom] - Detail95 in. (2.41 m)
Height [transom]25 in. (0.63 m)
Height [transom]25 in. (.64 m)
Length - Meters5.38
Length - Meters5.76
Length - Feet17
Length - Feet18
Length - Inches8
Length - Inches11
Length overall - Detail17 ft. 8 in. (5.38 m)
Length overall - Detail18 ft. 11 in. (5.76 m)
Length overall - Meters5.38
Length overall - Meters5.77
Length overall - Inches212
Length overall - Inches227
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessBottom: 0.080 in. (2 mm)
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 typeDeep Vee
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail38 gal. (144 l)
Fuel tank capacity - Detail41 gal. with reserve (155 l)
Fuel tank capacity - Liters143.85
Fuel tank capacity - Liters155.2
Fuel tank capacity - Gal38
Fuel tank capacity - Gal41
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max150 hp (111 kW)
Engine max200 hp (148 kw)
Operational Info
Maximum capacity1,245 lbs. (564 kg)
Maximum capacity1,750 lbs. (793 kg)
Maximum people5
Maximum people6

Alumacraft Navigator 175 CS 2008 vs Alumacraft Tournament Pro 185 CS 2006 — Common Questions

Which is the larger boat — the Alumacraft Navigator 175 CS 2008 or the Alumacraft Tournament Pro 185 CS 2006?
The Alumacraft Tournament Pro 185 CS 2006 is the longer of the two at 18,0 feet overall. The Alumacraft Navigator 175 CS 2008 comes in at 17,0 feet, making it roughly 1,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Alumacraft Navigator 175 CS 2008 or the Alumacraft Tournament Pro 185 CS 2006?
For trailering, the Alumacraft Navigator 175 CS 2008 has the edge at 127 lbs dry weight versus 151 lbs for the Alumacraft Tournament Pro 185 CS 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 CS 2006 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Alumacraft Navigator 175 CS 2008 tops out at 150 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 CS 2008 is Coast Guard rated for 5 passengers, while the Alumacraft Tournament Pro 185 CS 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 has the better power-to-weight ratio?
The Alumacraft Tournament Pro 185 CS 2006 has a better power-to-weight ratio at 1 lbs per hp compared to 1 lbs per hp for the Alumacraft Navigator 175 CS 2008. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Alumacraft Tournament Pro 185 CS 2006 measures 96" wide, compared to 95" for the Alumacraft Navigator 175 CS 2008. 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 175 CS 2008 or the Alumacraft Tournament Pro 185 CS 2006?
The Alumacraft Tournament Pro 185 CS 2006 has the bigger tank at 41 gallons, versus 38 gallons on the Alumacraft Navigator 175 CS 2008. That 3-gallon difference translates to roughly 9–15 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Alumacraft Navigator 175 CS 2008 and Alumacraft Tournament Pro 185 CS 2006 from the same manufacturer?
Yes — both the Alumacraft Navigator 175 CS 2008 and the Alumacraft Tournament Pro 185 CS 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.