Alumacraft Lunker 165 LTD CS 2003 boat specs
Alumacraft
Alumacraft Lunker 165 LTD CS 2003
2003
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VS
Alumacraft Magnum 175 CS 2005 boat specs
Alumacraft
Alumacraft Magnum 175 CS 2005
2005
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Alumacraft Lunker 165 LTD CS 2003 vs Alumacraft Magnum 175 CS 2005 — Same Brand, Different Boat

The Alumacraft Lunker 165 LTD CS 2003 vs Alumacraft Magnum 175 CS 2005 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 140 hp, the Alumacraft Magnum 175 CS 2005 has a 90-hp advantage over the Alumacraft Lunker 165 LTD CS 2003's 50-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

Both boats are rated for 5 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: Performance buyers should lean toward the Alumacraft Magnum 175 CS 2005 and its 140-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Alumacraft Lunker 165 LTD CS 2003 with its 50-hp rating is the more economical daily driver.
General Boat Info
MakeAlumacraft
MakeAlumacraft
ModelLunker 165 LTD CS
ModelMagnum 175 CS
Model Year2003
Model Year2005
Measurements / Dimensions
Beam76 in
Beam88 in. (2.24 m)
Beam - Meters1.93
Beam - Meters2.24
Beam - Inches76
Beam - Inches88
Draft [drive up] - Detailn/a
Draft [drive up] - Detailnot available
Weight - Detail700 lbs
Weight - Detail1175 lbs. (532 kg)
Weight - kg317.51
Weight - kg532.97
Weight - lbs.7
Weight - lbs.1175
Height - Detail37 in
Height - Detailnot available
Height - Meters0.94
Height - Metersnot available
Height - Inches37
Height - Inchesnot available
Height [transom]72.5 in. 20 in
Height [transom]20 in. (.51 m)
Length overall - Detail16 ft. 6 in
Length overall - Detail17 ft. 11 in. (5.46 m)
Length overall - Meters5.03
Length overall - Meters5.46
Length overall - Inches198
Length overall - Inches215
Depth - Detailnot available
Depth - Detail41 in. (1.04 m) Maximum to floor: 22 in. (.56 m)
Depth - Centimetersnot available
Depth - Centimeters104.14
Depth - Inchesnot available
Depth - Inches41
Width [transom] - Detailnot available
Width [transom] - Detail88 in (2.24 m)
Length - Metersnot available
Length - Meters5.46
Length - Feetnot available
Length - Feet17
Length - Inchesnot available
Length - Inches11
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull thicknessnot available
Hull thicknessBottom: .080 in. (2.0 mm) Sides: 080 in. (2.0 mm) 2XB Bow?2nd plate: .080 in. 2XB Bottom?2nd plate: .060 in
Engine and Drivetrain
Fuel tank capacity - Detailn/a
Fuel tank capacity - Detail34 gal. (129 l)
Engine max50 hp
Engine max140 hp (104 kw)
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters128.7
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal34
Operational Info
Water capacityn/a
Water capacitynot available
Maximum people5 persons
Maximum people5
Trailer Info
Trailer - Detailn/a
Trailer - Detailnot available

Alumacraft Lunker 165 LTD CS 2003 vs Alumacraft Magnum 175 CS 2005 — Common Questions

Which is easier to trailer — the Alumacraft Lunker 165 LTD CS 2003 or the Alumacraft Magnum 175 CS 2005?
For trailering, the Alumacraft Lunker 165 LTD CS 2003 has the edge at 7 lbs dry weight versus 1 175 lbs for the Alumacraft Magnum 175 CS 2005. 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 Magnum 175 CS 2005 is rated to a maximum of 140 hp, giving it the larger power ceiling. The Alumacraft Lunker 165 LTD CS 2003 tops out at 50 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 Lunker 165 LTD CS 2003 is Coast Guard rated for 5 passengers, while the Alumacraft Magnum 175 CS 2005 is certified for 5. 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 Magnum 175 CS 2005 measures 88" wide, compared to 76" for the Alumacraft Lunker 165 LTD 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.
Are the Alumacraft Lunker 165 LTD CS 2003 and Alumacraft Magnum 175 CS 2005 from the same manufacturer?
Yes — both the Alumacraft Lunker 165 LTD CS 2003 and the Alumacraft Magnum 175 CS 2005 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.