Larson SEi 180 Ski  Fish I/O 2008 boat specs
Larson
Larson SEi 180 Ski Fish I/O 2008
2008
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VS
Larson SEi 190 I/O SF 2004 boat specs
Larson
Larson SEi 190 I/O SF 2004
2004
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Larson SEi 180 Ski Fish I/O 2008 vs Larson SEi 190 I/O SF 2004 — Same Brand, Different Boat

The Larson SEi 180 Ski Fish I/O 2008 vs Larson SEi 190 I/O SF 2004 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 300 hp, the Larson SEi 190 I/O SF 2004 has a 75-hp advantage over the Larson SEi 180 Ski Fish I/O 2008's 225-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Larson SEi 190 I/O SF 2004 carries 29 gallons versus 23 gallons in the Larson SEi 180 Ski Fish I/O 2008. 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 Larson SEi 180 Ski Fish I/O 2008 is rated for 6 passengers, while the Larson SEi 190 I/O SF 2004 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson SEi 180 Ski Fish I/O 2008 could be the deciding factor.

Bottom line: Choose the Larson SEi 180 Ski Fish I/O 2008 if your priority is putting more people on the water — it handles 6 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Larson SEi 190 I/O SF 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
MakeLarson
MakeLarson
ModelSEi 180 Ski Fish I/O
ModelSEi 190 I/O SF
Model Year2008
Model Year2004
Measurements / Dimensions
Beam7 ft. 9 in. (2.36 m)
Beam7 ft. 10 in
Beam - Meters2.36
Beam - Meters2.39
Beam - Inches93
Beam - Inches94
Deadrise21℃
Deadrise21°
Draft [max] - Detail31 in. (78.7 cm)
Draft [max] - Detail31 in
Draft [max] - Meters0.79
Draft [max] - Meters0.79
Draft [max] - Inches31
Draft [max] - Inches31
Weight - Detail2,650 lbs. (1,202 kg)
Weight - Detail2,650 lbs. apx
Weight - kg1202.02
Weight - kg1202.02
Weight - lbs.265
Weight - lbs.265
Length - Meters5.33
Length - Metersnot available
Length - Feet17
Length - Feetnot available
Length - Inches6
Length - Inchesnot available
Length overall - Detail17 ft. 6 in. (5.33 m)
Length overall - Detail18 ft. 6 in
Length overall - Meters5.33
Length overall - Meters5.64
Length overall - Inches21
Length overall - Inches222
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Detail29 gal
Fuel tank capacity - Liters87.06
Fuel tank capacity - Liters109.78
Fuel tank capacity - Gal23
Fuel tank capacity - Gal29
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typenot available
Engine max225 hp
Engine max300 HP
Operational Info
Maximum capacity1,100 lbs. (499 kg)
Maximum capacity1,500 lbs
Maximum people6
Maximum peoplenot available

Larson SEi 180 Ski Fish I/O 2008 vs Larson SEi 190 I/O SF 2004 — Common Questions

Which is easier to trailer — the Larson SEi 180 Ski Fish I/O 2008 or the Larson SEi 190 I/O SF 2004?
For trailering, the Larson SEi 190 I/O SF 2004 has the edge at 265 lbs dry weight versus 265 lbs for the Larson SEi 180 Ski Fish I/O 2008. 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 Larson SEi 190 I/O SF 2004 is rated to a maximum of 300 hp, giving it the larger power ceiling. The Larson SEi 180 Ski Fish I/O 2008 tops out at 225 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 Larson SEi 180 Ski Fish I/O 2008 is Coast Guard rated for 6 passengers, while the Larson SEi 190 I/O SF 2004 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 Larson SEi 190 I/O SF 2004 measures 94" wide, compared to 93" for the Larson SEi 180 Ski Fish I/O 2008. 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 Larson SEi 180 Ski Fish I/O 2008 or the Larson SEi 190 I/O SF 2004?
The Larson SEi 190 I/O SF 2004 has the bigger tank at 29 gallons, versus 23 gallons on the Larson SEi 180 Ski Fish I/O 2008. That 6-gallon difference translates to roughly 18–30 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson SEi 180 Ski Fish I/O 2008 and Larson SEi 190 I/O SF 2004 from the same manufacturer?
Yes — both the Larson SEi 180 Ski Fish I/O 2008 and the Larson SEi 190 I/O SF 2004 are built by Larson. 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.