Alumacraft Invader 175 2003 boat specs
Alumacraft
Alumacraft Invader 175 2003
2003
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VS
Alumacraft V-Bow 1860 AW Tunnel SC 2005 boat specs
Alumacraft
Alumacraft V-Bow 1860 AW Tunnel SC 2005
2005
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Alumacraft Invader 175 2003 vs Alumacraft V-Bow 1860 AW Tunnel SC 2005 — Same Brand, Different Boat

The Alumacraft Invader 175 2003 vs Alumacraft V-Bow 1860 AW Tunnel SC 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.

Both boats share a closely matched power ceiling — 115 hp for the Alumacraft Invader 175 2003 and 115 hp for the Alumacraft V-Bow 1860 AW Tunnel SC 2005. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Alumacraft Invader 175 2003 carries 25 gallons versus 8 gallons in the Alumacraft V-Bow 1860 AW Tunnel SC 2005. 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 V-Bow 1860 AW Tunnel SC 2005 is rated for 6 passengers, while the Alumacraft Invader 175 2003 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft V-Bow 1860 AW Tunnel SC 2005 could be the deciding factor.

Bottom line: Choose the Alumacraft V-Bow 1860 AW Tunnel SC 2005 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 Invader 175 2003 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
MakeAlumacraft
MakeAlumacraft
ModelInvader 175
ModelV-Bow 1860 AW Tunnel SC
Model Year2003
Model Year2005
Measurements / Dimensions
BeamBeam: 88 in. Bottom: 64 in
Beam86 in
Beam - Meters2.24
Beam - Meters2.18
Beam - Inches88
Beam - Inches86
Draft [drive up] - Detailn/a
Draft [drive up] - Detailnot available
Weight - Detail1200 lbs
Weight - Detail875 lbs
Weight - kg544.31
Weight - kg396.89
Weight - lbs.12
Weight - lbs.875
Height - Detail23 in
Height - Detail25 in
Height - Meters0.58
Height - Meters0.64
Height - Inches23
Height - Inches25
Height [transom]22 in. Width: 88 in
Height [transom]21 in
Length overall - Detail17 ft. 5 in
Length overall - Detail18 ft. 0 in
Length overall - Meters5.31
Length overall - Meters5.49
Length overall - Inches209
Length overall - Inches216
Width [transom] - Detailnot available
Width [transom] - Detail60 in
Length - Feetnot available
Length - Feet18
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail25 gal
Fuel tank capacity - DetailTwo 7.5 gal
Fuel tank capacity - Liters94.64
Fuel tank capacity - Liters30.28
Fuel tank capacity - Gal25
Fuel tank capacity - Gal7.5
Engine max115 hp
Engine max115 hp
Operational Info
Water capacityn/a
Water capacitynot available
Maximum people4 persons
Maximum people6
Trailer Info
Trailer - Detailn/a
Trailer - Detailnot available

Alumacraft Invader 175 2003 vs Alumacraft V-Bow 1860 AW Tunnel SC 2005 — Common Questions

Which is easier to trailer — the Alumacraft Invader 175 2003 or the Alumacraft V-Bow 1860 AW Tunnel SC 2005?
For trailering, the Alumacraft Invader 175 2003 has the edge at 12 lbs dry weight versus 875 lbs for the Alumacraft V-Bow 1860 AW Tunnel SC 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.
How many people can each boat hold?
The Alumacraft Invader 175 2003 is Coast Guard rated for 4 passengers, while the Alumacraft V-Bow 1860 AW Tunnel SC 2005 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 is wider, and does it affect trailering?
The Alumacraft Invader 175 2003 measures 88" wide, compared to 86" for the Alumacraft V-Bow 1860 AW Tunnel SC 2005. 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 Invader 175 2003 or the Alumacraft V-Bow 1860 AW Tunnel SC 2005?
The Alumacraft Invader 175 2003 has the bigger tank at 25 gallons, versus 8 gallons on the Alumacraft V-Bow 1860 AW Tunnel SC 2005. That 17-gallon difference translates to roughly 52–87 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Alumacraft Invader 175 2003 and Alumacraft V-Bow 1860 AW Tunnel SC 2005 from the same manufacturer?
Yes — both the Alumacraft Invader 175 2003 and the Alumacraft V-Bow 1860 AW Tunnel SC 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.