Larson Marine San Marino 1990 vs Larson SEi 180 LX I/O 2006 - Boat Spec Comparison

Q: Which is the larger boat — the Larson Marine San Marino 1990 or the Larson SEi 180 LX I/O 2006?

The Larson Marine San Marino 1990 is the longer of the two at 25,0 feet overall. The Larson SEi 180 LX I/O 2006 comes in at 17,0 feet, making it roughly 8,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: What is the maximum horsepower rating for these boats?

The Larson Marine San Marino 1990 has a documented max rating of 260 hp. Engine specifications for the Larson SEi 180 LX I/O 2006 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 Marine San Marino 1990 is Coast Guard rated for 7 passengers, while the Larson SEi 180 LX I/O 2006 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: Are the Larson Marine San Marino 1990 and Larson SEi 180 LX I/O 2006 from the same manufacturer?

Yes — both the Larson Marine San Marino 1990 and the Larson SEi 180 LX I/O 2006 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 Marine San Marino 1990 vs Larson SEi 180 LX I/O 2006

Larson

Larson Marine San Marino 1990

1990

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Larson

Larson SEi 180 LX I/O 2006

2006

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Detailed Evaluation & Buyer Recommendation

Larson Marine San Marino 1990 vs Larson SEi 180 LX I/O 2006 — Same Brand, Different Boat

The Larson Marine San Marino 1990 vs Larson SEi 180 LX I/O 2006 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 Marine San Marino 1990 carries a rated maximum of 260 hp. Engine data for the Larson SEi 180 LX I/O 2006 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.

For family outings this is probably the sharpest distinction between the two. The Larson SEi 180 LX I/O 2006 is rated for 8 passengers, while the Larson Marine San Marino 1990 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson SEi 180 LX I/O 2006 could be the deciding factor.

Bottom line: Choose the Larson SEi 180 LX I/O 2006 if your priority is putting more people on the water — it handles 8 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Larson Marine San Marino 1990 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.

Measurements / Dimensions

Length overall - Detail25.00 ft

Length overall - Detail17 ft. 6 in. (5.33 m)

Length - Feet25

Length - Feet17

Length overall - Meters7.62

Length overall - Meters5.33

Length overall - Inches300

Length overall - Inches21

Beamnot available

Beam7 ft. 9 in. (2.36 m)

Beam - Metersnot available

Beam - Meters2.36

Beam - Inchesnot available

Beam - Inches93

Deadrisenot available

Deadrise21℃

Draft [max] - Detailnot available

Draft [max] - Detail31 in. (78.7 cm)

Draft [max] - Metersnot available

Draft [max] - Meters0.79

Draft [max] - Inchesnot available

Draft [max] - Inches31

Weight - Detailnot available

Weight - Detail2,365 lbs. (1,070 kg)

Weight - kgnot available

Weight - kg1072.75

Weight - lbs.not available

Weight - lbs.2365

Length - Metersnot available

Length - Meters5.33

Length - Inchesnot available

Length - Inches6

Engine and Drivetrain

Engine makeMercury

Engine makenot available

Horsepower260 hp

Horsepowernot available

Fuel typeGas

Fuel typenot available

Drive typeinboard

Drive typeI/O

Fuel tank capacity - Detailnot available

Fuel tank capacity - Detail23 gal. (87 l)

Fuel tank capacity - Litersnot available

Fuel tank capacity - Liters87.06

Fuel tank capacity - Galnot available

Fuel tank capacity - Gal23

Operational Info

Boat typePower

Boat typenot available

Maximum capacitynot available

Maximum capacity1,275 lbs. (578 kg)

Maximum peoplenot available

Maximum people8

General Boat Info

Makenot available

MakeLarson

Modelnot available

ModelSEi 180 LX I/O

Model Yearnot available

Model Year2006

Body / Hull

Hull typenot available

Hull typeModified Vee

Trailer Info

Trailer - Detailnot available

Trailer - DetailSingle-axle EZ loader

Larson Marine San Marino 1990 vs Larson SEi 180 LX I/O 2006 — Common Questions

Which is the larger boat — the Larson Marine San Marino 1990 or the Larson SEi 180 LX I/O 2006?

The Larson Marine San Marino 1990 is the longer of the two at 25,0 feet overall. The Larson SEi 180 LX I/O 2006 comes in at 17,0 feet, making it roughly 8,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

What is the maximum horsepower rating for these boats?

The Larson Marine San Marino 1990 has a documented max rating of 260 hp. Engine specifications for the Larson SEi 180 LX I/O 2006 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 Marine San Marino 1990 is Coast Guard rated for 7 passengers, while the Larson SEi 180 LX I/O 2006 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.

Are the Larson Marine San Marino 1990 and Larson SEi 180 LX I/O 2006 from the same manufacturer?

Yes — both the Larson Marine San Marino 1990 and the Larson SEi 180 LX I/O 2006 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 Marine San Marino 1990 full specs ← Larson SEi 180 LX I/O 2006 full specs