Alumacraft Invader 175 2005 vs Alumacraft Navigator 165 CS 2003 - Boat Spec Comparison

Q: Which is easier to trailer — the Alumacraft Invader 175 2005 or the Alumacraft Navigator 165 CS 2003?

For trailering, the Alumacraft Invader 175 2005 has the edge at 12 lbs dry weight versus 88 lbs for the Alumacraft Navigator 165 CS 2003. 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.

Q: Which boat can handle a bigger outboard?

The Alumacraft Invader 175 2005 is rated to a maximum of 115 hp, giving it the larger power ceiling. The Alumacraft Navigator 165 CS 2003 tops out at 75 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.

Q: How many people can each boat hold?

The Alumacraft Invader 175 2005 is Coast Guard rated for 4 passengers, while the Alumacraft Navigator 165 CS 2003 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.

Q: Which boat is wider, and does it affect trailering?

The Alumacraft Invader 175 2005 measures 88" wide, compared to 82" for the Alumacraft Navigator 165 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.

Q: Which boat has the larger fuel tank — the Alumacraft Invader 175 2005 or the Alumacraft Navigator 165 CS 2003?

The Alumacraft Invader 175 2005 has the bigger tank at 25 gallons, versus 22 gallons on the Alumacraft Navigator 165 CS 2003. That 3-gallon difference translates to roughly 9–15 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Alumacraft Invader 175 2005 and Alumacraft Navigator 165 CS 2003 from the same manufacturer?

Yes — both the Alumacraft Invader 175 2005 and the Alumacraft Navigator 165 CS 2003 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.

Boat Comparison

Alumacraft Invader 175 2005 vs Alumacraft Navigator 165 CS 2003

Alumacraft

Alumacraft Invader 175 2005

2005

View full specs →

Alumacraft

Alumacraft Navigator 165 CS 2003

2003

View full specs →

Detailed Evaluation & Buyer Recommendation

Alumacraft Invader 175 2005 vs Alumacraft Navigator 165 CS 2003 — Same Brand, Different Boat

The Alumacraft Invader 175 2005 vs Alumacraft Navigator 165 CS 2003 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 115 hp, the Alumacraft Invader 175 2005 has a 40-hp advantage over the Alumacraft Navigator 165 CS 2003's 75-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 25 gal and 22 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Alumacraft Navigator 165 CS 2003 is rated for 5 passengers, while the Alumacraft Invader 175 2005 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Navigator 165 CS 2003 could be the deciding factor.

Bottom line: Choose the Alumacraft Navigator 165 CS 2003 if your priority is putting more people on the water — it handles 5 passengers and at 0,0 ft it has the deck room to back that rating up comfortably. The Alumacraft Invader 175 2005 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

ModelInvader 175

ModelNavigator 165 CS

Model Year2005

Model Year2003

Measurements / Dimensions

Beam88 in. (2.23 m) Bottom: 64 in. (1.63 m)

Beam82 in

Beam - Meters2.24

Beam - Meters2.08

Beam - Inches88

Beam - Inches82

Weight - Detail1,200 lbs. (544 kg)

Weight - Detail880 lbs

Weight - kg544.31

Weight - kg399.16

Weight - lbs.12

Weight - lbs.88

Width [transom] - Detail88 in. (2.23 m)

Width [transom] - Detailnot available

Height - Detail23 in. (0.58 m)

Height - Detail36 in

Height - Meters0.58

Height - Meters0.91

Height - Inches23

Height - Inches36

Height [transom]22 in. (0.6 m)

Height [transom]82 in. 20 in

Length - Meters5.31

Length - Metersnot available

Length - Feet17

Length - Feetnot available

Length - Inches5

Length - Inchesnot available

Length overall - Detail17 ft. 5 in (5.31 m)

Length overall - Detail16 ft. 5 in

Length overall - Meters5.18

Length overall - Meters5

Length overall - Inches204

Length overall - Inches197

Draft [drive up] - Detailnot available

Draft [drive up] - Detailn/a

Body / Hull

Hull materialAluminum

Hull thicknessBottom/sides: .102 in. (2.5 mm)

Hull thicknessnot available

Engine and Drivetrain

Fuel tank capacity - Detail25 gal. (91 l)

Fuel tank capacity - Detail22 gal

Fuel tank capacity - Liters94.64

Fuel tank capacity - Liters83.28

Fuel tank capacity - Gal25

Fuel tank capacity - Gal22

Engine max115 hp (85 kw)

Engine max75 hp

Operational Info

Maximum people4

Maximum people5 persons

Water capacitynot available

Water capacityn/a

Trailer Info

Trailer - Detailnot available

Trailer - Detailn/a

Alumacraft Invader 175 2005 vs Alumacraft Navigator 165 CS 2003 — Common Questions

Which is easier to trailer — the Alumacraft Invader 175 2005 or the Alumacraft Navigator 165 CS 2003?

For trailering, the Alumacraft Invader 175 2005 has the edge at 12 lbs dry weight versus 88 lbs for the Alumacraft Navigator 165 CS 2003. 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 Invader 175 2005 is rated to a maximum of 115 hp, giving it the larger power ceiling. The Alumacraft Navigator 165 CS 2003 tops out at 75 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 Invader 175 2005 is Coast Guard rated for 4 passengers, while the Alumacraft Navigator 165 CS 2003 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 Invader 175 2005 measures 88" wide, compared to 82" for the Alumacraft Navigator 165 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.

Which boat has the larger fuel tank — the Alumacraft Invader 175 2005 or the Alumacraft Navigator 165 CS 2003?

The Alumacraft Invader 175 2005 has the bigger tank at 25 gallons, versus 22 gallons on the Alumacraft Navigator 165 CS 2003. That 3-gallon difference translates to roughly 9–15 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Alumacraft Invader 175 2005 and Alumacraft Navigator 165 CS 2003 from the same manufacturer?

Yes — both the Alumacraft Invader 175 2005 and the Alumacraft Navigator 165 CS 2003 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.

← Alumacraft Invader 175 2005 full specs ← Alumacraft Navigator 165 CS 2003 full specs