Detailed Evaluation & Buyer Recommendation
Larson FX 1850 DC O/B 2012 vs Larson SEi 180 Ski Fish I/O 2006 — A Close Look at Two Modified Vees
When two boats share the same hull type — in this case both the Larson FX 1850 DC O/B 2012 and the Larson SEi 180 Ski Fish I/O 2006 are modified vee designs with composite construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department — Larson FX 1850 DC O/B 2012 at 18,5 ft versus Larson SEi 180 Ski Fish I/O 2006 at 17,0 ft. At 182 lbs and 265 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The Larson FX 1850 DC O/B 2012 carries a rated maximum of 175 hp. Engine data for the Larson SEi 180 Ski Fish I/O 2006 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Larson FX 1850 DC O/B 2012 carries 35 gallons versus 23 gallons in the Larson SEi 180 Ski Fish I/O 2006. 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 FX 1850 DC O/B 2012 is rated for 7 passengers, while the Larson SEi 180 Ski Fish I/O 2006 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson FX 1850 DC O/B 2012 could be the deciding factor.
Bottom line: Choose the Larson FX 1850 DC O/B 2012 if your priority is putting more people on the water — it handles 7 passengers and at 18,5 ft it has the deck room to back that rating up comfortably. The Larson SEi 180 Ski Fish I/O 2006 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
ModelFX 1850 DC O/B
ModelSEi 180 Ski Fish I/O
Model Year2012
Model Year2006
Measurements / Dimensions
Beam7 ft. 8 in. (2.39 m)
Beam7 ft. 9 in. (2.36 m)
Beam - Meters2.34
Beam - Meters2.36
Beam - Inches92
Beam - Inches93
Deadrise21°
Deadrise21℃
Weight - Detail1,820 lbs. (819 kg)
Weight - Detail2,650 lbs. (1,202 kg)
Weight - kg825.54
Weight - kg1202.02
Weight - lbs.182
Weight - lbs.265
Length - Feet18.5
Length - Feet17
Length overall - Detail18 ft. 6 in. (5.64 m)
Length overall - Detail17 ft. 6 in. (5.33 m)
Length overall - Meters5.64
Length overall - Meters5.33
Length overall - Inches222
Length overall - Inches21
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
Length - Metersnot available
Length - Meters5.33
Length - Inchesnot available
Length - Inches6
Body / Hull
Hull materialComposite
Hull materialnot available
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Engine makeMercury
Engine makenot available
Engine model90ELPT Optimax
Engine modelnot available
Fuel tank capacity - Detail35 gal. (128 l)
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Liters132.49
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal35
Fuel tank capacity - Gal23
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeI/O
Engine max175 hp
Engine maxnot available
Operational Info
Maximum capacity1,850 lbs. (839 kg)
Maximum capacity1,100 lbs. (499 kg)
Maximum people7 / 1,200 lbs
Maximum people6
Trailer Info
Trailer - DetailCustom color matched FX 3000 DB with swing tongue & chrome wheels
Trailer - DetailSingle-axle EZ Loader
Trailer - Length over all21 ft. 8 in. (6.6 m)
Trailer - Length over allnot available