Detailed Evaluation & Buyer Recommendation
Alumacraft Magnum 165 2003 vs Alumacraft Trophy 185 2007 — Same Brand, Different Boat
The Alumacraft Magnum 165 2003 vs Alumacraft Trophy 185 2007 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 185 2007 has a 110-hp advantage over the Alumacraft Magnum 165 2003's 65-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 Magnum 165 2003 carries 22 gallons versus 4 gallons in the Alumacraft Trophy 185 2007. 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 Trophy 185 2007 is rated for 8 passengers, while the Alumacraft Magnum 165 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 Trophy 185 2007 could be the deciding factor.
Bottom line: Choose the Alumacraft Trophy 185 2007 if your priority is putting more people on the water — it handles 8 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Alumacraft Magnum 165 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
ModelMagnum 165
ModelTrophy 185
Model Year2003
Model Year2007
Measurements / Dimensions
Beam81 in
Beam98 in. (2.4 m)
Beam - Meters2.06
Beam - Meters2.49
Beam - Inches81
Beam - Inches98
Draft [drive up] - Detailn/a
Draft [drive up] - Detailnot available
Weight - Detail840 lbs
Weight - Detail1,780 lbs. (807 kg)
Weight - kg381.02
Weight - kg807.39
Weight - lbs.84
Weight - lbs.178
Height - Detail36 in
Height - Detailnot available
Height - Meters0.91
Height - Metersnot available
Height - Inches36
Height - Inchesnot available
Height [transom]81 in. 20 in
Height [transom]25 in. (0.64 m)
Length overall - Detail16 ft. 5 in
Length overall - Detail18 ft. 8 in. (5.6 m)
Length overall - Meters5
Length overall - Meters5.69
Length overall - Inches197
Length overall - Inches224
Depth - Detailnot available
Depth - DetailMaximum: 47 in. (1.2 m) To Floor: 27 in. (0.67 m)
Depth - Centimetersnot available
Depth - Centimeters119.38
Depth - Inchesnot available
Depth - Inches47
Width [transom] - Detailnot available
Width [transom] - Detail96 in. (2.42 m)
Length - Metersnot available
Length - Meters5.6
Length - Feetnot available
Length - Feet18
Length - Inchesnot available
Length - Inches8
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessnot available
Hull thicknessBottom: 0.100 in. (2.5 mm)
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail22 gal
Fuel tank capacity - Detail40 gal. (151 l)
Fuel tank capacity - Liters83.28
Fuel tank capacity - Liters151.42
Fuel tank capacity - Gal22
Fuel tank capacity - Gal4
Engine max65 hp
Engine max175 hp (130 kW)
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Water capacityn/a
Water capacitynot available
Maximum people5 persons
Maximum people8
Maximum capacitynot available
Maximum capacity1,760 lbs. (798 kg)
Trailer Info
Trailer - Detailn/a
Trailer - Detailnot available