Detailed Evaluation & Buyer Recommendation
Alumacraft Competitor 185 CS 2012 vs Alumacraft Navigator 175 Tiller 2006 — Same Brand, Different Boat
Matching a deep vee Alumacraft Competitor 185 CS 2012 against a modified vee Alumacraft Navigator 175 Tiller 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 Competitor 185 CS 2012 at 18,7 ft versus Alumacraft Navigator 175 Tiller 2006 at 17,0 ft. Weight tells a clearer story for trailering families: the Alumacraft Navigator 175 Tiller 2006 tips the scales at 1 145 lbs — 1 003 lbs less than the Alumacraft Competitor 185 CS 2012 at 142 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
The power gap is worth calling out. Rated to 150 hp, the Alumacraft Competitor 185 CS 2012 has a 70-hp advantage over the Alumacraft Navigator 175 Tiller 2006's 80-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 Competitor 185 CS 2012 carries 35 gallons versus 4 gallons in the Alumacraft Navigator 175 Tiller 2006. 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 Competitor 185 CS 2012 is rated for 6 passengers, while the Alumacraft Navigator 175 Tiller 2006 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Competitor 185 CS 2012 could be the deciding factor.
Bottom line: Choose the Alumacraft Competitor 185 CS 2012 if your priority is putting more people on the water — it handles 6 passengers and at 18,7 ft it has the deck room to back that rating up comfortably. The Alumacraft Navigator 175 Tiller 2006 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
ModelCompetitor 185 CS
ModelNavigator 175 Tiller
Model Year2012
Model Year2006
Measurements / Dimensions
Beam95 in. (2.41 m)
Beam93 in. (2.36 m)
Beam - Meters2.41
Beam - Meters2.36
Beam - Inches95
Beam - Inches93
Depth - Detail43 in. (1.09 m) To Floor: 23 in. (0.58 m)
Depth - DetailMaximum: 37 in. (.94 m) To Floor: 22 in. (.56 m)
Depth - Centimeters109.22
Depth - Centimeters93.98
Depth - Inches43
Depth - Inches37
Weight - Detail1,420 lbs. (583 kg)
Weight - Detail1,145 lbs. (519 kg)
Weight - kg644.1
Weight - kg519.36
Weight - lbs.142
Weight - lbs.1145
Width [transom] - Detail95 in. (2.36 m)
Width [transom] - Detail93 in. (2.36 m)
Height [transom]25 in. (0.64 m)
Height [transom]20 in. (.51 m)
Length - Feet18.67
Length - Feet17
Length overall - Detail18 ft. 8 in. (5.38 m)
Length overall - Detail17 ft. 6 in. (5.33 m)
Length overall - Meters5.69
Length overall - Meters5.33
Length overall - Inches224
Length overall - Inches21
Length - Metersnot available
Length - Meters5.33
Length - Inchesnot available
Length - Inches6
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessBottom and Sides: 0.080 in. (2 mm)
Hull thicknessBottom/Sides: .080 in. (2.0 mm) 2XB Bow?2nd Plate: .080 in. 2XB Bottom?2nd Plate: .080 in
Hull typeDeep Vee
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail35 gal. (132.5 l)
Fuel tank capacity - Detail40 gal. (151 l)
Fuel tank capacity - Liters132.49
Fuel tank capacity - Liters151.42
Fuel tank capacity - Gal35
Fuel tank capacity - Gal4
Drive typeOutboard
Drive typeOutboard
Engine max150 hp (112 kW)
Engine max80 hp (60 kw)
Operational Info
StorageBow Livewell: 22 gal. (83.3 l) Aft Livewell: 21 gal. (79.5 l)
Storagenot available
Maximum capacity1,600 lbs. (725 kg)
Maximum capacity1,145 lbs. (519 kg)
Maximum people6
Maximum people5