Larson LX 860 O/B 2012 boat specs
Larson
Larson LX 860 O/B 2012
2012
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VS
Larson Senza 186 2005 boat specs
Larson
Larson Senza 186 2005
2005
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Larson LX 860 O/B 2012 vs Larson Senza 186 2005 — Same Brand, Different Boat

The Larson LX 860 O/B 2012 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 860 O/B 2012 carries a rated maximum of 150 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 3 gallons in the Larson LX 860 O/B 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 Senza 186 2005 is rated for 9 passengers, while the Larson LX 860 O/B 2012 caps at 8. 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 860 O/B 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.
General Boat Info
MakeLarson
MakeLarson
ModelLX 860 O/B
ModelSenza 186
Model Year2012
Model Year2005
Measurements / Dimensions
Beam7 ft. 10 in. (2.39 m)
Beam7 ft. 10 in
Beam - Meters2.39
Beam - Meters2.39
Beam - Inches94
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 - Detail1,780 lbs. (807 kg)
Weight - Detail2,700 lbs
Weight - kg807.39
Weight - kg1224.7
Weight - lbs.178
Weight - lbs.27
Length - Feet18.5
Length - Feetnot available
Length overall - Detail18 ft. 6 in. (5.64 m)
Length overall - Detail18 ft. 6 in
Length overall - Meters5.64
Length overall - Meters5.64
Length overall - Inches222
Length overall - Inches222
Body / Hull
Hull materialComposite
Hull materialFiberglass
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Engine makeMercury
Engine makenot available
Engine model90ELPT Optimax
Engine modelnot available
Fuel tank capacity - Detail30 gal. (114 l)
Fuel tank capacity - Detail29 gal
Fuel tank capacity - Liters113.56
Fuel tank capacity - Liters109.78
Fuel tank capacity - Gal3
Fuel tank capacity - Gal29
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typenot available
Engine max150 hp
Engine maxnot available
Operational Info
Maximum capacity1,850 lbs. (839 kg)
Maximum capacity1,400 lbs
Maximum people8 / 1,200 lbs
Maximum people9 Persons
Trailer Info
Trailer - DetailLX 3000 with swing tongue
Trailer - Detailnot available
Trailer - Length over all25 ft. 1 in. (7.64 m)
Trailer - Length over allnot available

Larson LX 860 O/B 2012 vs Larson Senza 186 2005 — Common Questions

Which is easier to trailer — the Larson LX 860 O/B 2012 or the Larson Senza 186 2005?
For trailering, the Larson Senza 186 2005 has the edge at 27 lbs dry weight versus 178 lbs for the Larson LX 860 O/B 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 LX 860 O/B 2012 has a documented max rating of 150 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 860 O/B 2012 is Coast Guard rated for 8 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Larson LX 860 O/B 2012 and Larson Senza 186 2005 share an 7 ft. 10 in. (2.39 m) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
Which boat has the larger fuel tank — the Larson LX 860 O/B 2012 or the Larson Senza 186 2005?
The Larson Senza 186 2005 has the bigger tank at 29 gallons, versus 3 gallons on the Larson LX 860 O/B 2012. That 26-gallon difference translates to roughly 78–130 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson LX 860 O/B 2012 and Larson Senza 186 2005 from the same manufacturer?
Yes — both the Larson LX 860 O/B 2012 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.