Larson 370 Cabrio 2010 vs Larson SEi 180 O/B 2004 - Boat Spec Comparison

Q: Which is easier to trailer — the Larson 370 Cabrio 2010 or the Larson SEi 180 O/B 2004?

For trailering, the Larson SEi 180 O/B 2004 has the edge at 15 lbs dry weight versus 168 lbs for the Larson 370 Cabrio 2010. 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: Which boat can handle a bigger outboard?

The Larson 370 Cabrio 2010 is rated to a maximum of 420 hp, giving it the larger power ceiling. The Larson SEi 180 O/B 2004 tops out at 150 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.

Q: How many passengers can the Larson SEi 180 O/B 2004 carry?

The Larson SEi 180 O/B 2004 has an official capacity rating of 5 people. Capacity data wasn't available for the other model in this comparison — verify directly with the dealer.

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

The Larson 370 Cabrio 2010 measures 156" wide, compared to 93" for the Larson SEi 180 O/B 2004. 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 370 Cabrio 2010 or the Larson SEi 180 O/B 2004?

The Larson 370 Cabrio 2010 has the bigger tank at 266 gallons, versus 23 gallons on the Larson SEi 180 O/B 2004. That 243-gallon difference translates to roughly 729–1215 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Larson 370 Cabrio 2010 and Larson SEi 180 O/B 2004 from the same manufacturer?

Yes — both the Larson 370 Cabrio 2010 and the Larson SEi 180 O/B 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.

Boat Comparison

Larson 370 Cabrio 2010 vs Larson SEi 180 O/B 2004

Larson

Larson 370 Cabrio 2010

2010

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Larson

Larson SEi 180 O/B 2004

2004

View full specs →

Detailed Evaluation & Buyer Recommendation

Larson 370 Cabrio 2010 vs Larson SEi 180 O/B 2004 — Same Brand, Different Boat

The Larson 370 Cabrio 2010 vs Larson SEi 180 O/B 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.

The power gap is worth calling out. Rated to 420 hp, the Larson 370 Cabrio 2010 has a 270-hp advantage over the Larson SEi 180 O/B 2004's 150-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Larson 370 Cabrio 2010 carries 266 gallons versus 23 gallons in the Larson SEi 180 O/B 2004. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Bottom line: Performance buyers should lean toward the Larson 370 Cabrio 2010 and its 420-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Larson SEi 180 O/B 2004 with its 150-hp rating is the more economical daily driver.

General Boat Info

MakeLarson

Model370 Cabrio

ModelSEi 180 O/B

Model Year201

Model Year2004

Measurements / Dimensions

Beam13 ft. 0 in. (3.96 m)

Beam7 ft. 9 in

Beam - Meters3.96

Beam - Meters2.36

Beam - Inches156

Beam - Inches93

Bridge clearance - DetailWith Arch: 9 ft. 9 in. (2.97 m)

Bridge clearance - Detailnot available

Bridge clearance - Meters2.97

Bridge clearance - Metersnot available

Bridge clearance - Inches117

Bridge clearance - Inchesnot available

Deadrise22℃

Deadrise21℃

Draft [max] - Detail40 in. (102 cm)

Draft [max] - Detail30 in. max

Draft [max] - Meters1.02

Draft [max] - Meters0.76

Draft [max] - Inches4

Draft [max] - Inches3

Weight - Detail16,800 lbs. (7,620 kg)

Weight - Detail1,500 lbs. apx

Weight - kg7620.35

Weight - kg680.39

Weight - lbs.168

Weight - lbs.15

Length - Feet36.92

Length - Feetnot available

Length [over all with swim platform]With Pulpit: 36 ft. 11 in. (11.3 m)

Length [over all with swim platform]not available

Height [transom]not available

Height [transom]20 in

Length overall - Detailnot available

Length overall - Detail17 ft. 6 in

Length overall - Metersnot available

Length overall - Meters5.33

Length overall - Inchesnot available

Length overall - Inches21

Body / Hull

Hull materialFiberglass

Hull typeModified Vee

Hull typenot available

Engine and Drivetrain

Fuel tank capacity - Detail266 gal. (1,006.9 l)

Fuel tank capacity - Detail23 gal

Fuel tank capacity - Liters1006.92

Fuel tank capacity - Liters87.06

Fuel tank capacity - Gal266

Fuel tank capacity - Gal23

Fuel typeGas or Diesel

Fuel typenot available

Drive typeI/O - Twin

Drive typenot available

Engine max420 hp

Engine max150 HP

Operational Info

HeadEnclosed

Headnot available

Headroom6 ft. 3 in. (1.91 m)

Headroomnot available

Sleeping capacity6

Sleeping capacitynot available

Water capacity57 gal. (251 l) Waste: 35 gal. (132 l)

Water capacitynot available

Maximum capacitynot available

Maximum capacity1,475 lbs

Larson 370 Cabrio 2010 vs Larson SEi 180 O/B 2004 — Common Questions

Which is easier to trailer — the Larson 370 Cabrio 2010 or the Larson SEi 180 O/B 2004?

For trailering, the Larson SEi 180 O/B 2004 has the edge at 15 lbs dry weight versus 168 lbs for the Larson 370 Cabrio 2010. 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 370 Cabrio 2010 is rated to a maximum of 420 hp, giving it the larger power ceiling. The Larson SEi 180 O/B 2004 tops out at 150 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 passengers can the Larson SEi 180 O/B 2004 carry?

The Larson SEi 180 O/B 2004 has an official capacity rating of 5 people. Capacity data wasn't available for the other model in this comparison — verify directly with the dealer.

Which boat is wider, and does it affect trailering?

The Larson 370 Cabrio 2010 measures 156" wide, compared to 93" for the Larson SEi 180 O/B 2004. 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 370 Cabrio 2010 or the Larson SEi 180 O/B 2004?

The Larson 370 Cabrio 2010 has the bigger tank at 266 gallons, versus 23 gallons on the Larson SEi 180 O/B 2004. That 243-gallon difference translates to roughly 729–1215 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Larson 370 Cabrio 2010 and Larson SEi 180 O/B 2004 from the same manufacturer?

Yes — both the Larson 370 Cabrio 2010 and the Larson SEi 180 O/B 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.

← Larson 370 Cabrio 2010 full specs ← Larson SEi 180 O/B 2004 full specs