Detailed Evaluation & Buyer Recommendation
Alumacraft Magnum 165 CS 2004 vs Alumacraft Trophy 205 2010 — Same Brand, Different Boat
The Alumacraft Magnum 165 CS 2004 vs Alumacraft Trophy 205 2010 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 225 hp, the Alumacraft Trophy 205 2010 has a 135-hp advantage over the Alumacraft Magnum 165 CS 2004's 90-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 CS 2004 carries 22 gallons versus 6 gallons in the Alumacraft Trophy 205 2010. 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 205 2010 is rated for 9 passengers, while the Alumacraft Magnum 165 CS 2004 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 205 2010 could be the deciding factor.
Bottom line: Choose the Alumacraft Trophy 205 2010 if your priority is putting more people on the water — it handles 9 passengers and at 20,7 ft it has the deck room to back that rating up comfortably. The Alumacraft Magnum 165 CS 2004 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 CS
ModelTrophy 205
Model Year2004
Model Year201
Measurements / Dimensions
Beam81 in
Beam98 in. (2.5 m)
Beam - Meters2.06
Beam - Meters2.49
Beam - Inches81
Beam - Inches98
Draft [drive up] - Detailn/a
Draft [drive up] - Detailnot available
Weight - Detail903 lbs
Weight - Detail1,915 lbs. (869 kg)
Weight - kg409.59
Weight - kg868.63
Weight - lbs.903
Weight - lbs.1915
Height - Detail36 in
Height - Detailnot available
Height - Meters0.91
Height - Metersnot available
Height - Inches36
Height - Inchesnot available
Height [transom]20 in. Width: 81 in
Height [transom]25 in. (0.64 m)
Length overall - Detail16 ft. 5 in
Length overall - Detail20 ft. 8 in. (6.3 m)
Length overall - Meters5
Length overall - Meters6.3
Length overall - Inches197
Length overall - Inches248
Depth - Detailnot available
Depth - DetailMaximum: 47 in. (1.2 m) To Floor: 27 in. (0.69 m)
Depth - Centimetersnot available
Depth - Centimeters119.38
Depth - Inchesnot available
Depth - Inches47
Width [transom] - Detailnot available
Width [transom] - Detail96 in. (2.45 m)
Length - Metersnot available
Length - Meters6.3
Length - Feetnot available
Length - Feet20.67
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessnot available
Hull thicknessBottom: 0.100 in. (2.5 mm)
Hull typenot available
Hull typeDeep Vee
Engine and Drivetrain
Fuel tank capacity - Detail22 gal
Fuel tank capacity - Detail60 gal. (227 l)
Fuel tank capacity - Liters83.28
Fuel tank capacity - Liters227.12
Fuel tank capacity - Gal22
Fuel tank capacity - Gal6
Engine max90 hp
Engine max225 hp (167 kW)
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Water capacityn/a
Water capacitynot available
Maximum people5 persons
Maximum people9
Maximum capacitynot available
Maximum capacity2,350 lbs. (1,066 kg)
Trailer Info
Trailer - Detailn/a
Trailer - Detailnot available