Larson LXi 218 I/O 2011 boat specs
Larson
Larson LXi 218 I/O 2011
2011
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VS
Larson SEi 180 O/B 2004 boat specs
Larson
Larson SEi 180 O/B 2004
2004
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Larson LXi 218 I/O 2011 vs Larson SEi 180 O/B 2004 — Same Brand, Different Boat

The Larson LXi 218 I/O 2011 vs Larson SEi 180 O/B 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 320 hp, the Larson LXi 218 I/O 2011 has a 170-hp advantage over the Larson SEi 180 O/B 2004's 150-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 LXi 218 I/O 2011 carries 34 gallons versus 23 gallons in the Larson SEi 180 O/B 2004. 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 218 I/O 2011 is rated for 9 passengers, while the Larson SEi 180 O/B 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 LXi 218 I/O 2011 could be the deciding factor.

Bottom line: Choose the Larson LXi 218 I/O 2011 if your priority is putting more people on the water — it handles 9 passengers and at 21,5 ft it has the deck room to back that rating up comfortably. The Larson SEi 180 O/B 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
ModelLXi 218 I/O
ModelSEi 180 O/B
Model Year2011
Model Year2004
Measurements / Dimensions
Beam8 ft. 3 in. (2.51 m)
Beam7 ft. 9 in
Beam - Meters2.51
Beam - Meters2.36
Beam - Inches99
Beam - Inches93
Deadrise22°
Deadrise21℃
Draft [max] - Detail33 in. (83.8 cm)
Draft [max] - Detail30 in. max
Draft [max] - Meters0.84
Draft [max] - Meters0.76
Draft [max] - Inches33
Draft [max] - Inches3
Weight - Detail3,735 lbs. (1,690 kg) with base engine
Weight - Detail1,500 lbs. apx
Weight - kg1694.17
Weight - kg680.39
Weight - lbs.3735
Weight - lbs.15
Length - Feet21.5
Length - Feetnot available
Length overall - Detail21 ft. 6 in. (6.55 m)
Length overall - Detail17 ft. 6 in
Length overall - Meters6.55
Length overall - Meters5.33
Length overall - Inches258
Length overall - Inches21
Height [transom]not available
Height [transom]20 in
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Engine/s standardMerCruiser 5.0 MPI
Engine/s standardnot available
Fuel tank capacity - Detail34 gal. (129 l)
Fuel tank capacity - Detail23 gal
Fuel tank capacity - Liters128.7
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal34
Fuel tank capacity - Gal23
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typenot available
Horsepower260 hp
Horsepowernot available
Engine max320 hp
Engine max150 HP
Operational Info
Maximum capacity1,450 lbs. (658 kg)
Maximum capacity1,475 lbs
Maximum people9
Maximum peoplenot available
Trailer Info
Trailer - DetailLXi 4600 DB with swing tongue
Trailer - Detailnot available
Trailer - Length over all27 ft. (8.23 m)
Trailer - Length over allnot available

Larson LXi 218 I/O 2011 vs Larson SEi 180 O/B 2004 — Common Questions

Which is easier to trailer — the Larson LXi 218 I/O 2011 or the Larson SEi 180 O/B 2004?
For trailering, the Larson SEi 180 O/B 2004 has the edge at 15 lbs dry weight versus 3 735 lbs for the Larson LXi 218 I/O 2011. 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 LXi 218 I/O 2011 is rated to a maximum of 320 hp, giving it the larger power ceiling. The Larson SEi 180 O/B 2004 tops out at 150 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 LXi 218 I/O 2011 is Coast Guard rated for 9 passengers, while the Larson SEi 180 O/B 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 LXi 218 I/O 2011 measures 99" wide, compared to 93" for the Larson SEi 180 O/B 2004. 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 218 I/O 2011 or the Larson SEi 180 O/B 2004?
The Larson LXi 218 I/O 2011 has the bigger tank at 34 gallons, versus 23 gallons on the Larson SEi 180 O/B 2004. That 11-gallon difference translates to roughly 33–55 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson LXi 218 I/O 2011 and Larson SEi 180 O/B 2004 from the same manufacturer?
Yes — both the Larson LXi 218 I/O 2011 and the Larson SEi 180 O/B 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.