Larson LX 710 I/O 2012 boat specs
Larson
Larson LX 710 I/O 2012
2012
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VS
Larson SEi 190 I/O 2004 boat specs
Larson
Larson SEi 190 I/O 2004
2004
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Larson LX 710 I/O 2012 vs Larson SEi 190 I/O 2004 — Same Brand, Different Boat

The Larson LX 710 I/O 2012 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 — 135 hp for the Larson LX 710 I/O 2012 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 19 gallons in the Larson LX 710 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 LX 710 I/O 2012 is rated for 7 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 710 I/O 2012 could be the deciding factor.

Bottom line: Choose the Larson LX 710 I/O 2012 if your priority is putting more people on the water — it handles 7 passengers and at 17,1 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
MakeLarson
ModelLX 710 I/O
ModelSEi 190 I/O
Model Year2012
Model Year2004
Measurements / Dimensions
Beam7 ft. 4 in. (2.24 m)
Beam7 ft. 10 in
Beam - Meters2.24
Beam - Meters2.39
Beam - Inches88
Beam - Inches94
Deadrise21°
Deadrise21℃
Draft [max] - Detail31 in. (79 cm)
Draft [max] - Detail31 in
Draft [max] - Meters0.79
Draft [max] - Meters0.79
Draft [max] - Inches31
Draft [max] - Inches31
Weight - Detail2,040 lbs. (925 kg) with base engine (3.0L)
Weight - Detail2,650 lbs. apx
Weight - kg925.33
Weight - kg1202.02
Weight - lbs.204
Weight - lbs.265
Length - Feet17.08
Length - Feetnot available
Length overall - Detail17 ft. 1 in. (5.21 m)
Length overall - Detail18 ft. 6 in
Length overall - Meters5.21
Length overall - Meters5.64
Length overall - Inches205
Length overall - Inches222
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 model3.0L MPI EC
Engine modelnot available
Fuel tank capacity - Detail19 gal. (72 l)
Fuel tank capacity - Detail29 gal
Fuel tank capacity - Liters71.92
Fuel tank capacity - Liters109.78
Fuel tank capacity - Gal19
Fuel tank capacity - Gal29
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typenot available
Horsepower135
Horsepowernot available
Engine maxnot available
Engine max150 HP
Operational Info
Maximum capacity1,100 lbs. (499 kg)
Maximum capacity1,500 lbs
Maximum people7
Maximum peoplenot available
Trailer Info
Trailer - DetailLX 3000 DB with swing tongue & chrome wheels
Trailer - Detailnot available
Trailer - Length over all21 ft. 4 in. (6.5 m)
Trailer - Length over allnot available

Larson LX 710 I/O 2012 vs Larson SEi 190 I/O 2004 — Common Questions

Which is easier to trailer — the Larson LX 710 I/O 2012 or the Larson SEi 190 I/O 2004?
For trailering, the Larson LX 710 I/O 2012 has the edge at 204 lbs dry weight versus 265 lbs for the Larson SEi 190 I/O 2004. 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 SEi 190 I/O 2004 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Larson LX 710 I/O 2012 tops out at 135 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 LX 710 I/O 2012 is Coast Guard rated for 7 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.
Which boat is wider, and does it affect trailering?
The Larson SEi 190 I/O 2004 measures 94" wide, compared to 88" for the Larson LX 710 I/O 2012. 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 LX 710 I/O 2012 or the Larson SEi 190 I/O 2004?
The Larson SEi 190 I/O 2004 has the bigger tank at 29 gallons, versus 19 gallons on the Larson LX 710 I/O 2012. That 10-gallon difference translates to roughly 30–50 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson LX 710 I/O 2012 and Larson SEi 190 I/O 2004 from the same manufacturer?
Yes — both the Larson LX 710 I/O 2012 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.