Larson SEi 180 Fish Series I/O 2006 vs Larson SEi 180 LX I/O 2008 - Boat Spec Comparison

Q: Which is the larger boat — the Larson SEi 180 Fish Series I/O 2006 or the Larson SEi 180 LX I/O 2008?

The Larson SEi 180 LX I/O 2008 is the longer of the two at 17,0 feet overall. The Larson SEi 180 Fish Series I/O 2006 comes in at 17,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: Which is easier to trailer — the Larson SEi 180 Fish Series I/O 2006 or the Larson SEi 180 LX I/O 2008?

For trailering, the Larson SEi 180 Fish Series I/O 2006 has the edge at 265 lbs dry weight versus 2 365 lbs for the Larson SEi 180 LX 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.

Q: What is the maximum horsepower rating for these boats?

The Larson SEi 180 LX I/O 2008 has a documented max rating of 225 hp. Engine specifications for the Larson SEi 180 Fish Series I/O 2006 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.

Q: How many people can each boat hold?

The Larson SEi 180 Fish Series I/O 2006 is Coast Guard rated for 6 passengers, while the Larson SEi 180 LX I/O 2008 is certified for 8. 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: Do these boats require an oversize trailer permit to tow on US highways?

Both the Larson SEi 180 Fish Series I/O 2006 and Larson SEi 180 LX I/O 2008 share an 7 ft. 9 in. (2.36 m) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.

Q: How do the fuel tanks compare on the Larson SEi 180 Fish Series I/O 2006 and Larson SEi 180 LX I/O 2008?

Both boats carry similar fuel loads — 23 gallons and 23 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Q: Are the Larson SEi 180 Fish Series I/O 2006 and Larson SEi 180 LX I/O 2008 from the same manufacturer?

Yes — both the Larson SEi 180 Fish Series I/O 2006 and the Larson SEi 180 LX I/O 2008 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.

Boat Comparison

Larson SEi 180 Fish Series I/O 2006 vs Larson SEi 180 LX I/O 2008

Larson

Larson SEi 180 Fish Series I/O 2006

2006

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Larson

Larson SEi 180 LX I/O 2008

2008

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Detailed Evaluation & Buyer Recommendation

Larson SEi 180 Fish Series I/O 2006 vs Larson SEi 180 LX I/O 2008 — A Close Look at Two Modified Vees

When two boats share the same hull type — in this case both the Larson SEi 180 Fish Series I/O 2006 and the Larson SEi 180 LX I/O 2008 are modified vee designs with composite construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department — Larson SEi 180 Fish Series I/O 2006 at 17,0 ft versus Larson SEi 180 LX I/O 2008 at 17,0 ft. Weight tells a clearer story for trailering families: the Larson SEi 180 LX I/O 2008 tips the scales at 2 365 lbs — 2 100 lbs less than the Larson SEi 180 Fish Series I/O 2006 at 265 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The Larson SEi 180 LX I/O 2008 tops out at 225 hp. Engine specs for the Larson SEi 180 Fish Series I/O 2006 aren't listed — confirm with a dealer before selecting an outboard.Both carry nearly identical fuel loads — 23 gal and 23 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Larson SEi 180 LX I/O 2008 is rated for 8 passengers, while the Larson SEi 180 Fish Series I/O 2006 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson SEi 180 LX I/O 2008 could be the deciding factor.

The Larson SEi 180 LX I/O 2008 has a documented top speed of 41 mph. Speed data wasn't available for the other model.

Bottom line: Choose the Larson SEi 180 LX I/O 2008 if your priority is putting more people on the water — it handles 8 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Larson SEi 180 Fish Series I/O 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.

General Boat Info

MakeLarson

ModelSEi 180 Fish Series I/O

ModelSEi 180 LX I/O

Model Year2006

Model Year2008

Measurements / Dimensions

Beam7 ft. 9 in. (2.36 m)

Beam - Meters2.36

Beam - Inches93

Deadrise21℃

Draft [max] - Detail31 in. (78.7 cm)

Draft [max] - Meters0.79

Draft [max] - Inches31

Weight - Detail2,650 lbs. (1,202 kg)

Weight - Detail2,365 lbs. (1,072 kg)

Weight - kg1202.02

Weight - kg1072.75

Weight - lbs.265

Weight - lbs.2365

Length - Meters5.33

Length - Feet17

Length - Inches6

Length overall - Detail17 ft. 6 in. (5.33 m)

Length overall - Meters5.33

Length overall - Inches21

Body / Hull

Hull typeModified Vee

Hull materialnot available

Hull materialFiberglass

Engine and Drivetrain

Fuel tank capacity - Detail23 gal. (87 l)

Fuel tank capacity - Liters87.06

Fuel tank capacity - Gal23

Drive typeI/O

Engine/s standardnot available

Engine/s standardVolvo Penta 3.0 GL

Fuel typenot available

Fuel typeGas

Engine maxnot available

Engine max225 hp

Operational Info

Maximum capacity1,100 lbs. (499 kg)

Maximum capacity1,275 lbs. (578 kg)

Maximum people6

Maximum people8

Trailer Info

Trailer - DetailSingle-axle EZ loader

Trailer - Detailnot available

Performance

Maximum speednot available

Maximum speed41-43 mph

Larson SEi 180 Fish Series I/O 2006 vs Larson SEi 180 LX I/O 2008 — Common Questions

Which is the larger boat — the Larson SEi 180 Fish Series I/O 2006 or the Larson SEi 180 LX I/O 2008?

The Larson SEi 180 LX I/O 2008 is the longer of the two at 17,0 feet overall. The Larson SEi 180 Fish Series I/O 2006 comes in at 17,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Which is easier to trailer — the Larson SEi 180 Fish Series I/O 2006 or the Larson SEi 180 LX I/O 2008?

For trailering, the Larson SEi 180 Fish Series I/O 2006 has the edge at 265 lbs dry weight versus 2 365 lbs for the Larson SEi 180 LX 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.

What is the maximum horsepower rating for these boats?

The Larson SEi 180 LX I/O 2008 has a documented max rating of 225 hp. Engine specifications for the Larson SEi 180 Fish Series I/O 2006 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.

How many people can each boat hold?

The Larson SEi 180 Fish Series I/O 2006 is Coast Guard rated for 6 passengers, while the Larson SEi 180 LX I/O 2008 is certified for 8. 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.

Do these boats require an oversize trailer permit to tow on US highways?

Both the Larson SEi 180 Fish Series I/O 2006 and Larson SEi 180 LX I/O 2008 share an 7 ft. 9 in. (2.36 m) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.

How do the fuel tanks compare on the Larson SEi 180 Fish Series I/O 2006 and Larson SEi 180 LX I/O 2008?

Both boats carry similar fuel loads — 23 gallons and 23 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Are the Larson SEi 180 Fish Series I/O 2006 and Larson SEi 180 LX I/O 2008 from the same manufacturer?

Yes — both the Larson SEi 180 Fish Series I/O 2006 and the Larson SEi 180 LX I/O 2008 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.

← Larson SEi 180 Fish Series I/O 2006 full specs ← Larson SEi 180 LX I/O 2008 full specs