Larson LXi 288 I/O 2012 boat specs
Larson
Larson LXi 288 I/O 2012
2012
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VS
Larson SEi 180 Fish Series I/O 2005 boat specs
Larson
Larson SEi 180 Fish Series I/O 2005
2005
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Larson LXi 288 I/O 2012 vs Larson SEi 180 Fish Series I/O 2005 — Same Brand, Different Boat

The Larson LXi 288 I/O 2012 vs Larson SEi 180 Fish Series I/O 2005 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 Larson LXi 288 I/O 2012 carries a rated maximum of 3 hp. Engine data for the Larson SEi 180 Fish Series I/O 2005 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Larson SEi 180 Fish Series I/O 2005 carries 23 gallons versus 1 gallons in the Larson LXi 288 I/O 2012. 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 LXi 288 I/O 2012 is rated for 8 passengers, while the Larson SEi 180 Fish Series I/O 2005 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson LXi 288 I/O 2012 could be the deciding factor.

Bottom line: Choose the Larson LXi 288 I/O 2012 if your priority is putting more people on the water — it handles 8 passengers and at 29,2 ft it has the deck room to back that rating up comfortably. The Larson SEi 180 Fish Series I/O 2005 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
MakeLarson
ModelLXi 288 I/O
ModelSEi 180 Fish Series I/O
Model Year2012
Model Year2005
Measurements / Dimensions
Beam9 ft. (2.74 m)
Beam7 ft. 9 in
Beam - Meters2.74
Beam - Meters2.36
Beam - Inches108
Beam - Inches93
Deadrise24°
Deadrise21℃
Draft [max] - Detail39 in. (99.1 cm)
Draft [max] - Detail31 in. max
Draft [max] - Meters0.99
Draft [max] - Meters0.79
Draft [max] - Inches39
Draft [max] - Inches31
Weight - Detail5,970 lbs. (2,687 kg) with base engine (5.0L)
Weight - Detail2,650 lbs. apx
Weight - kg2707.94
Weight - kg1202.02
Weight - lbs.597
Weight - lbs.265
Length - Feet29.17
Length - Feetnot available
Length overall - Detail29 ft. 2 in. (8.69 m)
Length overall - Detail17 ft. 6 in
Length overall - Meters8.89
Length overall - Meters5.33
Length overall - Inches35
Length overall - Inches21
Body / Hull
Hull materialComposite
Hull materialFiberglass
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Engine makeMerCruiser (catalyst compliant) (mandatory in U.S.)
Engine makenot available
Engine model350 Mag MPI EC BIII
Engine modelnot available
Fuel tank capacity - Detail100 gal. (379 l)
Fuel tank capacity - Detail23 gal
Fuel tank capacity - Liters378.54
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal1
Fuel tank capacity - Gal23
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typenot available
Horsepower3
Horsepowernot available
Operational Info
Water capacity20 gal. (75.7 l)
Water capacitynot available
Maximum capacity1,850 lbs. (840 kg)
Maximum capacity1,100 lbs
Holding tank capacity - Detail12.5 gal. (47 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters49.21
Holding tank capacity - Litersnot available
Holding tank capacity - Gal12.5
Holding tank capacity - Galnot available
Maximum peoplenot available
Maximum people6 Persons
Trailer Info
Trailer - Length over all34 ft. 9 in. (10.59 m)
Trailer - Length over allnot available

Larson LXi 288 I/O 2012 vs Larson SEi 180 Fish Series I/O 2005 — Common Questions

Which is easier to trailer — the Larson LXi 288 I/O 2012 or the Larson SEi 180 Fish Series I/O 2005?
For trailering, the Larson SEi 180 Fish Series I/O 2005 has the edge at 265 lbs dry weight versus 597 lbs for the Larson LXi 288 I/O 2012. 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 LXi 288 I/O 2012 has a documented max rating of 3 hp. Engine specifications for the Larson SEi 180 Fish Series I/O 2005 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 LXi 288 I/O 2012 is Coast Guard rated for 8 passengers, while the Larson SEi 180 Fish Series I/O 2005 is certified for 6. 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 LXi 288 I/O 2012 measures 108" wide, compared to 93" for the Larson SEi 180 Fish Series I/O 2005. 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 LXi 288 I/O 2012 or the Larson SEi 180 Fish Series I/O 2005?
The Larson SEi 180 Fish Series I/O 2005 has the bigger tank at 23 gallons, versus 1 gallons on the Larson LXi 288 I/O 2012. That 22-gallon difference translates to roughly 66–110 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson LXi 288 I/O 2012 and Larson SEi 180 Fish Series I/O 2005 from the same manufacturer?
Yes — both the Larson LXi 288 I/O 2012 and the Larson SEi 180 Fish Series I/O 2005 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.