Larson LX 180 S O/B 2013 vs Larson SEi 190 I/O 2004 - Boat Spec Comparison

Q: Which is easier to trailer — the Larson LX 180 S O/B 2013 or the Larson SEi 190 I/O 2004?

For trailering, the Larson SEi 190 I/O 2004 has the edge at 265 lbs dry weight versus 2 179 lbs for the Larson LX 180 S O/B 2013. 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: How many people can each boat hold?

The Larson LX 180 S O/B 2013 is Coast Guard rated for 8 passengers, while the Larson SEi 190 I/O 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.

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

Both the Larson LX 180 S O/B 2013 and Larson SEi 190 I/O 2004 share an 7 ft. 10 in. (2.39 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: Which boat has the larger fuel tank — the Larson LX 180 S O/B 2013 or the Larson SEi 190 I/O 2004?

The Larson SEi 190 I/O 2004 has the bigger tank at 29 gallons, versus 3 gallons on the Larson LX 180 S O/B 2013. That 26-gallon difference translates to roughly 78–130 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Larson LX 180 S O/B 2013 and Larson SEi 190 I/O 2004 from the same manufacturer?

Yes — both the Larson LX 180 S O/B 2013 and the Larson SEi 190 I/O 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.

Boat Comparison

Larson LX 180 S O/B 2013 vs Larson SEi 190 I/O 2004

Larson

Larson LX 180 S O/B 2013

2013

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Larson

Larson SEi 190 I/O 2004

2004

View full specs →

Detailed Evaluation & Buyer Recommendation

Larson LX 180 S O/B 2013 vs Larson SEi 190 I/O 2004 — Same Brand, Different Boat

The Larson LX 180 S O/B 2013 vs Larson SEi 190 I/O 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.

Both boats share a closely matched power ceiling — 150 hp for the Larson LX 180 S O/B 2013 and 150 hp for the Larson SEi 190 I/O 2004. 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 Larson SEi 190 I/O 2004 carries 29 gallons versus 3 gallons in the Larson LX 180 S O/B 2013. 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 LX 180 S O/B 2013 is rated for 8 passengers, while the Larson SEi 190 I/O 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 LX 180 S O/B 2013 could be the deciding factor.

Bottom line: Choose the Larson LX 180 S O/B 2013 if your priority is putting more people on the water — it handles 8 passengers and at 18,5 ft it has the deck room to back that rating up comfortably. The Larson SEi 190 I/O 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

ModelLX 180 S O/B

ModelSEi 190 I/O

Model Year2013

Model Year2004

Measurements / Dimensions

Beam7 ft. 10 in. (2.39 m)

Beam7 ft. 10 in

Beam - Meters2.39

Beam - Inches94

Deadrise21°

Deadrise21℃

Draft [max] - Detail31 in. (79 cm)

Draft [max] - Detail31 in

Draft [max] - Meters0.79

Draft [max] - Inches31

Weight - Detail2,179 lbs. (988 kg) with Mercury 115 4S

Weight - Detail2,650 lbs. apx

Weight - kg988.38

Weight - kg1202.02

Weight - lbs.2179

Weight - lbs.265

Length - Feet18.5

Length - Feetnot available

Length overall - Detail18 ft. 6 in. (5.64 m)

Length overall - Detail18 ft. 6 in

Length overall - Meters5.64

Length overall - Inches222

Body / Hull

Hull materialComposite

Hull materialFiberglass

Hull typeDeep Vee

Hull typenot available

Engine and Drivetrain

Fuel tank capacity - Detail30 gal. (114 l)

Fuel tank capacity - Detail29 gal

Fuel tank capacity - Liters113.56

Fuel tank capacity - Liters109.78

Fuel tank capacity - Gal3

Fuel tank capacity - Gal29

Fuel typeGas

Fuel typenot available

Drive typeOutboard

Drive typenot available

Engine max150 hp

Engine max150 HP

Operational Info

Maximum capacity1,850 lbs. (839 kg)

Maximum capacity1,500 lbs

Maximum people8

Maximum peoplenot available

Trailer Info

Trailer - DetailLX 3400 with swing tongue

Trailer - Detailnot available

Trailer - Length over all25 ft. 1 in. (7.64 m)

Trailer - Length over allnot available

Larson LX 180 S O/B 2013 vs Larson SEi 190 I/O 2004 — Common Questions

Which is easier to trailer — the Larson LX 180 S O/B 2013 or the Larson SEi 190 I/O 2004?

For trailering, the Larson SEi 190 I/O 2004 has the edge at 265 lbs dry weight versus 2 179 lbs for the Larson LX 180 S O/B 2013. 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 Larson LX 180 S O/B 2013 is Coast Guard rated for 8 passengers, while the Larson SEi 190 I/O 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.

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

Both the Larson LX 180 S O/B 2013 and Larson SEi 190 I/O 2004 share an 7 ft. 10 in. (2.39 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.

Which boat has the larger fuel tank — the Larson LX 180 S O/B 2013 or the Larson SEi 190 I/O 2004?

The Larson SEi 190 I/O 2004 has the bigger tank at 29 gallons, versus 3 gallons on the Larson LX 180 S O/B 2013. That 26-gallon difference translates to roughly 78–130 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Larson LX 180 S O/B 2013 and Larson SEi 190 I/O 2004 from the same manufacturer?

Yes — both the Larson LX 180 S O/B 2013 and the Larson SEi 190 I/O 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.

← Larson LX 180 S O/B 2013 full specs ← Larson SEi 190 I/O 2004 full specs