Larson LX 620 SF 2011 vs Larson SEi 180 Sport I/O 2006 - Boat Spec Comparison

Q: Which is the larger boat - the Larson LX 620 SF 2011 or the Larson SEi 180 Sport I/O 2006?

The Larson SEi 180 Sport I/O 2006 is the longer of the two at 17,0 feet overall. The Larson LX 620 SF 2011 comes in at 16,2 feet, making it roughly 0,8 ft shorter - a meaningful difference in deck room and overall on-water presence.

Q: Which is easier to trailer - the Larson LX 620 SF 2011 or the Larson SEi 180 Sport I/O 2006?

For trailering, the Larson LX 620 SF 2011 has the edge at 1 150 lbs dry weight versus 2 365 lbs for the Larson SEi 180 Sport I/O 2006. 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 LX 620 SF 2011 has a documented max rating of 90 hp. Engine specifications for the Larson SEi 180 Sport 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 LX 620 SF 2011 is Coast Guard rated for 6 passengers, while the Larson SEi 180 Sport I/O 2006 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 Larson SEi 180 Sport I/O 2006 measures 93" wide, compared to 88" for the Larson LX 620 SF 2011. 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: How do the fuel tanks compare on the Larson LX 620 SF 2011 and Larson SEi 180 Sport I/O 2006?

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 LX 620 SF 2011 and Larson SEi 180 Sport I/O 2006 from the same manufacturer?

Yes - both the Larson LX 620 SF 2011 and the Larson SEi 180 Sport I/O 2006 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 620 SF 2011 vs Larson SEi 180 Sport I/O 2006

Larson

Larson LX 620 SF 2011

2011

View full specs →

Larson

Larson SEi 180 Sport I/O 2006

2006

View full specs →

Detailed Evaluation & Buyer Recommendation

Larson LX 620 SF 2011 vs Larson SEi 180 Sport I/O 2006: A Close Look at Two Modified-V Boats

Both the Larson LX 620 SF 2011 and the Larson SEi 180 Sport I/O 2006 are modified-V designs, so 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 LX 620 SF 2011 at 16,2 ft versus Larson SEi 180 Sport I/O 2006 at 17,0 ft. Weight tells a clearer story for trailering families: the Larson SEi 180 Sport I/O 2006 tips the scales at 2 365 lbs - 1 215 lbs less than the Larson LX 620 SF 2011 at 1 150 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 LX 620 SF 2011 carries a rated maximum of 90 hp. Engine data for the Larson SEi 180 Sport I/O 2006 wasn't available in our records - check the manufacturer's spec sheet before sizing a motor.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 LX 620 SF 2011 is rated for 6 passengers, while the Larson SEi 180 Sport I/O 2006 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 620 SF 2011 could be the deciding factor.

Bottom line: Choose the Larson LX 620 SF 2011 if your priority is putting more people on the water - it handles 6 passengers and at 16,2 ft it has the deck room to back that rating up comfortably. The Larson SEi 180 Sport I/O 2006 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 620 SF

ModelSEi 180 Sport I/O

Model Year2011

Model Year2006

Measurements / Dimensions

Beam7 ft. 4 in. (2.24 m)

Beam7 ft. 9 in. (2.36 m)

Beam - Meters2.24

Beam - Meters2.36

Beam - Inches88

Beam - Inches93

Deadrise21°

Deadrise21℃

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

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

Draft [max] - Meters0.79

Draft [max] - Inches31

Weight - Detail1,150 lbs. (522 kg)

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

Weight - kg521.63

Weight - kg1072.75

Weight - lbs.1150

Weight - lbs.2365

Length - Feet16.17

Length - Feet17

Length overall - Detail16 ft. 2 in. (4.93 m)

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

Length overall - Meters4.93

Length overall - Meters5.33

Length overall - Inches194

Length overall - Inches210

Length - Metersnot available

Length - Meters5.33

Length - Inchesnot available

Length - Inches6

Body / Hull

Hull materialFiberglass

Hull materialnot available

Hull typeModified Vee

Engine and Drivetrain

Engine/s standardBombardier Pre-Rig

Engine/s standardnot available

Fuel tank capacity - Detail23 gal. (87 l)

Fuel tank capacity - Liters87.06

Fuel tank capacity - Gal23

Fuel typeGas

Fuel typenot available

Drive typeOutboard

Drive typeI/O

Engine max90 hp

Engine maxnot available

Operational Info

Maximum capacity1,400 lbs. (635 kg)

Maximum capacity1,275 lbs. (578 kg)

Maximum people6 or 850 lbs.

Maximum peoplenot available

Trailer Info

Trailer - DetailLX 2200 with swing tongue

Trailer - DetailSingle-axle EZ Loader

Trailer - Length over all21 ft. 4 in. (6.5 m)

Trailer - Length over allnot available

Larson LX 620 SF 2011 vs Larson SEi 180 Sport I/O 2006 - Common Questions

Which is the larger boat - the Larson LX 620 SF 2011 or the Larson SEi 180 Sport I/O 2006?

The Larson SEi 180 Sport I/O 2006 is the longer of the two at 17,0 feet overall. The Larson LX 620 SF 2011 comes in at 16,2 feet, making it roughly 0,8 ft shorter - a meaningful difference in deck room and overall on-water presence.

Which is easier to trailer - the Larson LX 620 SF 2011 or the Larson SEi 180 Sport I/O 2006?

For trailering, the Larson LX 620 SF 2011 has the edge at 1 150 lbs dry weight versus 2 365 lbs for the Larson SEi 180 Sport I/O 2006. 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 LX 620 SF 2011 has a documented max rating of 90 hp. Engine specifications for the Larson SEi 180 Sport 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 LX 620 SF 2011 is Coast Guard rated for 6 passengers, while the Larson SEi 180 Sport I/O 2006 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 180 Sport I/O 2006 measures 93" wide, compared to 88" for the Larson LX 620 SF 2011. 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.

How do the fuel tanks compare on the Larson LX 620 SF 2011 and Larson SEi 180 Sport I/O 2006?

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 LX 620 SF 2011 and Larson SEi 180 Sport I/O 2006 from the same manufacturer?

Yes - both the Larson LX 620 SF 2011 and the Larson SEi 180 Sport I/O 2006 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 620 SF 2011 full specs ← Larson SEi 180 Sport I/O 2006 full specs