Larson Cabrio 370 2004 vs Larson SEi 180 Fish Series O/B 2005 - Boat Spec Comparison

Q: Which is easier to trailer — the Larson Cabrio 370 2004 or the Larson SEi 180 Fish Series O/B 2005?

For trailering, the Larson Cabrio 370 2004 has the edge at 168 lbs dry weight versus 1 785 lbs for the Larson SEi 180 Fish Series O/B 2005. 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.

Q: 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 Cabrio 370 2004 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.

Q: How many people can each boat hold?

The Larson Cabrio 370 2004 is Coast Guard rated for 6 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.

Q: Which boat is wider, and does it affect trailering?

The Larson Cabrio 370 2004 measures 156" wide, compared to 93" for the Larson SEi 180 Fish Series O/B 2005. 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.

Q: Which boat has the larger fuel tank — the Larson Cabrio 370 2004 or the Larson SEi 180 Fish Series O/B 2005?

The Larson Cabrio 370 2004 has the bigger tank at 266 gallons, versus 29 gallons on the Larson SEi 180 Fish Series O/B 2005. That 237-gallon difference translates to roughly 711–1185 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Larson Cabrio 370 2004 and Larson SEi 180 Fish Series O/B 2005 from the same manufacturer?

Yes — both the Larson Cabrio 370 2004 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.

Boat Comparison

Larson Cabrio 370 2004 vs Larson SEi 180 Fish Series O/B 2005

Larson

Larson Cabrio 370 2004

2004

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Larson

Larson SEi 180 Fish Series O/B 2005

2005

View full specs →

Detailed Evaluation & Buyer Recommendation

Larson Cabrio 370 2004 vs Larson SEi 180 Fish Series O/B 2005 — Same Brand, Different Boat

The Larson Cabrio 370 2004 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 Cabrio 370 2004 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Larson Cabrio 370 2004 carries 266 gallons versus 29 gallons in the Larson SEi 180 Fish Series O/B 2005. 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 SEi 180 Fish Series O/B 2005 is rated for 8 passengers, while the Larson Cabrio 370 2004 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson SEi 180 Fish Series O/B 2005 could be the deciding factor.

Bottom line: Choose the Larson SEi 180 Fish Series O/B 2005 if your priority is putting more people on the water — it handles 8 passengers and at 0,0 ft it has the deck room to back that rating up comfortably. The Larson Cabrio 370 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.

General Boat Info

MakeLarson

ModelCabrio 37

ModelSEi 180 Fish Series O/B

Model Year2004

Model Year2005

Measurements / Dimensions

Beam13 ft. 0 in

Beam7 ft. 9 in

Beam - Meters3.96

Beam - Meters2.36

Beam - Inches156

Beam - Inches93

Deadrise22℃

Deadrise21℃

Draft [max] - Detail40 in

Draft [max] - Detail33 in. max

Draft [max] - Meters1.02

Draft [max] - Meters0.84

Draft [max] - Inches4

Draft [max] - Inches33

Weight - Detail16,800 lbs. apx

Weight - Detail1,785 lbs. apx

Weight - kg7620.35

Weight - kg809.66

Weight - lbs.168

Weight - lbs.1785

Height - DetailBridge clearance with Arch: 9 ft. 9 in

Height - Detailnot available

Height - Meters2.97

Height - Metersnot available

Height - Inches117

Height - Inchesnot available

Length overall - Detail36 in 11 in

Length overall - Detail18 ft. 6 in

Length overall - Meters0.28

Length overall - Meters5.64

Length overall - Inches11

Length overall - Inches222

Height [transom]not available

Height [transom]20 in

Body / Hull

Hull materialFiberglass

Engine and Drivetrain

Fuel tank capacity - Detail266 gal

Fuel tank capacity - Detail29 gal

Fuel tank capacity - Liters1006.92

Fuel tank capacity - Liters109.78

Fuel tank capacity - Gal266

Fuel tank capacity - Gal29

Engine maxnot available

Engine max175 HP

Operational Info

Headroom6 ft. 3 in

Headroomnot available

Water capacity57 gal

Water capacitynot available

Maximum peopleSleeping capacity: 6 Persons

Maximum people8 Persons

Maximum capacitynot available

Maximum capacity1,880 lbs

Larson Cabrio 370 2004 vs Larson SEi 180 Fish Series O/B 2005 — Common Questions

Which is easier to trailer — the Larson Cabrio 370 2004 or the Larson SEi 180 Fish Series O/B 2005?

For trailering, the Larson Cabrio 370 2004 has the edge at 168 lbs dry weight versus 1 785 lbs for the Larson SEi 180 Fish Series O/B 2005. 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 Cabrio 370 2004 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 Cabrio 370 2004 is Coast Guard rated for 6 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 Cabrio 370 2004 measures 156" wide, compared to 93" for the Larson SEi 180 Fish Series O/B 2005. 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 Cabrio 370 2004 or the Larson SEi 180 Fish Series O/B 2005?

The Larson Cabrio 370 2004 has the bigger tank at 266 gallons, versus 29 gallons on the Larson SEi 180 Fish Series O/B 2005. That 237-gallon difference translates to roughly 711–1185 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Larson Cabrio 370 2004 and Larson SEi 180 Fish Series O/B 2005 from the same manufacturer?

Yes — both the Larson Cabrio 370 2004 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.

← Larson Cabrio 370 2004 full specs ← Larson SEi 180 Fish Series O/B 2005 full specs