Larson LX 185 S I/O 2013 boat specs
Larson
Larson LX 185 S I/O 2013
2013
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VS
Larson Senza 186 2005 boat specs
Larson
Larson Senza 186 2005
2005
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Larson LX 185 S I/O 2013 vs Larson Senza 186 2005 — Same Brand, Different Boat

The Larson LX 185 S I/O 2013 vs Larson Senza 186 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 LX 185 S I/O 2013 carries a rated maximum of 135 hp. Engine data for the Larson Senza 186 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 Senza 186 2005 carries 29 gallons versus 19 gallons in the Larson LX 185 S I/O 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 Senza 186 2005 is rated for 9 passengers, while the Larson LX 185 S I/O 2013 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson Senza 186 2005 could be the deciding factor.

Bottom line: Choose the Larson Senza 186 2005 if your priority is putting more people on the water — it handles 9 passengers and at 0,0 ft it has the deck room to back that rating up comfortably. The Larson LX 185 S I/O 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.
General Boat Info
MakeLarson
MakeLarson
ModelLX 185 S I/O
ModelSenza 186
Model Year2013
Model Year2005
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] - Detail33 in
Draft [max] - Meters0.79
Draft [max] - Meters0.84
Draft [max] - Inches31
Draft [max] - Inches33
Weight - Detail2,040 lbs. (925 kg) with base engine (3.0L)
Weight - Detail2,700 lbs
Weight - kg925.33
Weight - kg1224.7
Weight - lbs.204
Weight - lbs.27
Length - Feet18.67
Length - Feetnot available
Length overall - Detail18 ft. 8 in. (5.96 m)
Length overall - Detail18 ft. 6 in
Length overall - Meters5.69
Length overall - Meters5.64
Length overall - Inches224
Length overall - Inches222
Body / Hull
Hull materialComposite
Hull materialFiberglass
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Engine makeMerCruiser Catalyst Compliant (mandatory in U.S.)
Engine makenot available
Engine model3.0 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
Operational Info
Maximum capacity1,100 lbs. (499 kg)
Maximum capacity1,400 lbs
Maximum people7
Maximum people9 Persons
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 185 S I/O 2013 vs Larson Senza 186 2005 — Common Questions

Which is easier to trailer — the Larson LX 185 S I/O 2013 or the Larson Senza 186 2005?
For trailering, the Larson Senza 186 2005 has the edge at 27 lbs dry weight versus 204 lbs for the Larson LX 185 S I/O 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.
What is the maximum horsepower rating for these boats?
The Larson LX 185 S I/O 2013 has a documented max rating of 135 hp. Engine specifications for the Larson Senza 186 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 LX 185 S I/O 2013 is Coast Guard rated for 7 passengers, while the Larson Senza 186 2005 is certified for 9. 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 Senza 186 2005 measures 94" wide, compared to 88" for the Larson LX 185 S I/O 2013. 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 185 S I/O 2013 or the Larson Senza 186 2005?
The Larson Senza 186 2005 has the bigger tank at 29 gallons, versus 19 gallons on the Larson LX 185 S I/O 2013. 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 185 S I/O 2013 and Larson Senza 186 2005 from the same manufacturer?
Yes — both the Larson LX 185 S I/O 2013 and the Larson Senza 186 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.