Seaswirl 1851 Center Console O/B 2006 boat specs
Seaswirl
Seaswirl 1851 Center Console O/B 2006
2006
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Seaswirl 1851 Walk Around I/O 2006 boat specs
Seaswirl
Seaswirl 1851 Walk Around I/O 2006
2006
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Seaswirl 1851 Center Console O/B 2006 vs Seaswirl 1851 Walk Around I/O 2006 — Same Brand, Different Boat

The Seaswirl 1851 Center Console O/B 2006 vs Seaswirl 1851 Walk Around 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 Seaswirl 1851 Center Console O/B 2006 carries a rated maximum of 175 hp. Engine data for the Seaswirl 1851 Walk Around I/O 2006 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Both carry nearly identical fuel loads — 62 gal and 62 gal — so range won't be a tiebreaker here.

Both boats are rated for 5 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 Seaswirl 1851 Center Console O/B 2006 and Seaswirl 1851 Walk Around I/O 2006 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
MakeSeaswirl
MakeSeaswirl
Model1851 Center Console O/B
Model1851 Walk Around I/O
Model Year2006
Model Year2006
Measurements / Dimensions
Beam90 in. (2.29 m)
Beam90 in. (2.29 m)
Beam - Meters2.29
Beam - Meters2.29
Beam - Inches9
Beam - Inches9
Bridge clearance - Detail70 in. (1.78 m)
Bridge clearance - Detailnot available
Bridge clearance - Meters1.78
Bridge clearance - Metersnot available
Bridge clearance - Inches7
Bridge clearance - Inchesnot available
Deadrise20℃
Deadrise20℃
Draft [drive up] - Detail14 in. (.35 m)
Draft [drive up] - Detailnot available
Draft [drive up] meters0.36
Draft [drive up] metersnot available
Draft [drive up] inches14
Draft [drive up] inchesnot available
Draft [max] - Detail30 in. (.76 m)
Draft [max] - Detailnot available
Draft [max] - Meters0.76
Draft [max] - Metersnot available
Draft [max] - Inches3
Draft [max] - Inchesnot available
Weight - Detailw/ standard engine: 2,450 lbs. (1,111 kg)
Weight - Detailnot available
Weight - kg1111.3
Weight - kgnot available
Weight - lbs.245
Weight - lbs.not available
Length - Meters5.64
Length - Meters5.64
Length - Feet18
Length - Feet18
Length - Inches6
Length - Inches6
Length overall - Detail18 ft. 6 in. (5.64 m)
Length overall - Detail18 ft. 6 in. (5.64 m)
Length overall - Meters5.64
Length overall - Meters5.64
Length overall - Inches222
Length overall - Inches222
Engine and Drivetrain
Fuel tank capacity - Detail62 gal. (235 l)
Fuel tank capacity - Detail62 gal. (235 l)
Fuel tank capacity - Liters234.7
Fuel tank capacity - Liters234.7
Fuel tank capacity - Gal62
Fuel tank capacity - Gal62
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeI/O
Engine max175 hp (130 kw) Standard: 115 hp (86 kw)
Engine maxnot available
Operational Info
Maximum capacity1,900 lbs. (862 kg)
Maximum capacitynot available

Seaswirl 1851 Center Console O/B 2006 vs Seaswirl 1851 Walk Around I/O 2006 — Common Questions

Which is the larger boat — the Seaswirl 1851 Center Console O/B 2006 or the Seaswirl 1851 Walk Around I/O 2006?
The Seaswirl 1851 Walk Around I/O 2006 is the longer of the two at 18,0 feet overall. The Seaswirl 1851 Center Console O/B 2006 comes in at 18,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The Seaswirl 1851 Center Console O/B 2006 has a documented max rating of 175 hp. Engine specifications for the Seaswirl 1851 Walk Around 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 Seaswirl 1851 Center Console O/B 2006 is Coast Guard rated for 5 passengers, while the Seaswirl 1851 Walk Around I/O 2006 is certified for 5. 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Seaswirl 1851 Center Console O/B 2006 and Seaswirl 1851 Walk Around I/O 2006 share an 90 in. (2.29 m) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
How do the fuel tanks compare on the Seaswirl 1851 Center Console O/B 2006 and Seaswirl 1851 Walk Around I/O 2006?
Both boats carry similar fuel loads — 62 gallons and 62 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Seaswirl 1851 Center Console O/B 2006 and Seaswirl 1851 Walk Around I/O 2006 from the same manufacturer?
Yes — both the Seaswirl 1851 Center Console O/B 2006 and the Seaswirl 1851 Walk Around I/O 2006 are built by Seaswirl. 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.