Larson 180 Sport  2009 boat specs
Larson
Larson 180 Sport 2009
2009
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VS
Larson SEi 180 Fish Series O/B 2005 boat specs
Larson
Larson SEi 180 Fish Series O/B 2005
2005
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Larson 180 Sport 2009 vs Larson SEi 180 Fish Series O/B 2005 — Same Brand, Different Boat

The Larson 180 Sport 2009 vs Larson SEi 180 Fish Series O/B 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 SEi 180 Fish Series O/B 2005 tops out at 175 hp. Engine specs for the Larson 180 Sport 2009 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Larson SEi 180 Fish Series O/B 2005 carries 29 gallons versus 23 gallons in the Larson 180 Sport 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 8 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Larson 180 Sport 2009 and Larson SEi 180 Fish Series O/B 2005 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeLarson
MakeLarson
Model180 Sport
ModelSEi 180 Fish Series O/B
Model Year2009
Model Year2005
Measurements / Dimensions
Beam7 ft. 4 in. (2.24 m)
Beam7 ft. 9 in
Beam - Meters2.24
Beam - Meters2.36
Beam - Inches88
Beam - Inches93
Deadrise21℃
Deadrise21℃
Draft [max] - Detail31 in. (78.7 cm)
Draft [max] - Detail33 in. max
Draft [max] - Meters0.79
Draft [max] - Meters0.84
Draft [max] - Inches31
Draft [max] - Inches33
Weight - Detail2,375 lbs. (1,080 kg)
Weight - Detail1,785 lbs. apx
Weight - kg1077.28
Weight - kg809.66
Weight - lbs.2375
Weight - lbs.1785
Length - Meters5.36
Length - Metersnot available
Length - Feet17
Length - Feetnot available
Length - Inches7
Length - Inchesnot available
Length overall - Detail17 ft. 7 in. (5.36 m)
Length overall - Detail18 ft. 6 in
Length overall - Meters5.36
Length overall - Meters5.64
Length overall - Inches211
Length overall - Inches222
Height [transom]not available
Height [transom]20 in
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Detail29 gal
Fuel tank capacity - Liters87.06
Fuel tank capacity - Liters109.78
Fuel tank capacity - Gal23
Fuel tank capacity - Gal29
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typenot available
Engine maxnot available
Engine max175 HP
Operational Info
Maximum capacity1,150 lbs. (522 kg)
Maximum capacity1,880 lbs
Maximum people8
Maximum people8 Persons

Larson 180 Sport 2009 vs Larson SEi 180 Fish Series O/B 2005 — Common Questions

Which is easier to trailer — the Larson 180 Sport 2009 or the Larson SEi 180 Fish Series O/B 2005?
For trailering, the Larson SEi 180 Fish Series O/B 2005 has the edge at 1 785 lbs dry weight versus 2 375 lbs for the Larson 180 Sport 2009. 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 SEi 180 Fish Series O/B 2005 has a documented max rating of 175 hp. Engine specifications for the Larson 180 Sport 2009 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 180 Sport 2009 is Coast Guard rated for 8 passengers, while the Larson SEi 180 Fish Series O/B 2005 is certified for 8. 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 180 Fish Series O/B 2005 measures 93" wide, compared to 88" for the Larson 180 Sport 2009. 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 180 Sport 2009 or the Larson SEi 180 Fish Series O/B 2005?
The Larson SEi 180 Fish Series O/B 2005 has the bigger tank at 29 gallons, versus 23 gallons on the Larson 180 Sport 2009. That 6-gallon difference translates to roughly 18–30 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson 180 Sport 2009 and Larson SEi 180 Fish Series O/B 2005 from the same manufacturer?
Yes — both the Larson 180 Sport 2009 and the Larson SEi 180 Fish Series O/B 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.