Seaswirl 1851 Center Console O/B 2007 boat specs
Seaswirl
Seaswirl 1851 Center Console O/B 2007
2007
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Seaswirl 2601 Walk Around I/O 2007 boat specs
Seaswirl
Seaswirl 2601 Walk Around I/O 2007
2007
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Seaswirl 1851 Center Console O/B 2007 vs Seaswirl 2601 Walk Around I/O 2007 — Same Brand, Different Boat

The Seaswirl 1851 Center Console O/B 2007 vs Seaswirl 2601 Walk Around I/O 2007 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.

Size is the most obvious dividing line here. The Seaswirl 2601 Walk Around I/O 2007 measures 25,0 feet overall (2007), giving it roughly 7,0 additional feet of deck space compared to the Seaswirl 1851 Center Console O/B 2007 at 18,0 feet (2007). Weight tells a clearer story for trailering families: the Seaswirl 2601 Walk Around I/O 2007 tips the scales at 515 lbs — 270 lbs less than the Seaswirl 1851 Center Console O/B 2007 at 245 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The power gap is worth calling out. Rated to 320 hp, the Seaswirl 2601 Walk Around I/O 2007 has a 145-hp advantage over the Seaswirl 1851 Center Console O/B 2007's 175-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Seaswirl 1851 Center Console O/B 2007 carries 62 gallons versus 16 gallons in the Seaswirl 2601 Walk Around I/O 2007. 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 Seaswirl 2601 Walk Around I/O 2007 is rated for 7 passengers, while the Seaswirl 1851 Center Console O/B 2007 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Seaswirl 2601 Walk Around I/O 2007 could be the deciding factor.

Bottom line: Choose the Seaswirl 2601 Walk Around I/O 2007 if your priority is putting more people on the water — it handles 7 passengers and at 25,0 ft it has the deck room to back that rating up comfortably. The Seaswirl 1851 Center Console O/B 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
MakeSeaswirl
MakeSeaswirl
Model1851 Center Console O/B
Model2601 Walk Around I/O
Model Year2007
Model Year2007
Measurements / Dimensions
Beam90 in
Beam102 in
Beam - Meters2.29
Beam - Meters2.59
Beam - Inches9
Beam - Inches102
Bridge clearance - Detail70 in
Bridge clearance - Detail81 in
Bridge clearance - Meters1.78
Bridge clearance - Meters2.06
Bridge clearance - Inches7
Bridge clearance - Inches81
Deadrise20℃
Deadrise21℃
Draft [drive up] - Detail14 in
Draft [drive up] - Detail19 in
Draft [drive up] meters0.36
Draft [drive up] meters0.48
Draft [drive up] inches14
Draft [drive up] inches19
Draft [max] - Detail30 in
Draft [max] - Detail35 in
Draft [max] - Meters0.76
Draft [max] - Meters0.89
Draft [max] - Inches3
Draft [max] - Inches35
Weight - Detail2,450 lbs. w/ standard engine
Weight - Detail5,150 lbs. w/ standard engine
Weight - kg1111.3
Weight - kg2336
Weight - lbs.245
Weight - lbs.515
Length - Feet18
Length - Feet25
Length - Inches6
Length - Inches7
Length overall - Detail18 ft. 6 in
Length overall - Detail25 ft. 7 in
Length overall - Meters5.64
Length overall - Meters7.8
Length overall - Inches222
Length overall - Inches307
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Engine and Drivetrain
Engine/s standardYamaha F115 TXR - 4-stroke
Engine/s standardVolvo 5.0 GXi - 270 hp
Fuel tank capacity - Detail62 gal
Fuel tank capacity - Detail160 gal
Fuel tank capacity - Liters234.7
Fuel tank capacity - Liters605.67
Fuel tank capacity - Gal62
Fuel tank capacity - Gal16
Fuel typeGas
Fuel typeGas or diesel
Drive typeOutboard
Drive typeI/O
Engine max175 hp Standard: 115 hp
Engine max320 hp Standard: 270 hp
Operational Info
Maximum capacity1,900 lbs
Maximum capacity2,400 lbs
Headroomnot available
Headroom6 ft. 0 in
Water capacitynot available
Water capacity13 gal

Seaswirl 1851 Center Console O/B 2007 vs Seaswirl 2601 Walk Around I/O 2007 — Common Questions

Which is the larger boat — the Seaswirl 1851 Center Console O/B 2007 or the Seaswirl 2601 Walk Around I/O 2007?
The Seaswirl 2601 Walk Around I/O 2007 is the longer of the two at 25,0 feet overall. The Seaswirl 1851 Center Console O/B 2007 comes in at 18,0 feet, making it roughly 7,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Seaswirl 1851 Center Console O/B 2007 or the Seaswirl 2601 Walk Around I/O 2007?
For trailering, the Seaswirl 1851 Center Console O/B 2007 has the edge at 245 lbs dry weight versus 515 lbs for the Seaswirl 2601 Walk Around I/O 2007. 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 Seaswirl 2601 Walk Around I/O 2007 is rated to a maximum of 320 hp, giving it the larger power ceiling. The Seaswirl 1851 Center Console O/B 2007 tops out at 175 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 people can each boat hold?
The Seaswirl 1851 Center Console O/B 2007 is Coast Guard rated for 5 passengers, while the Seaswirl 2601 Walk Around I/O 2007 is certified for 7. 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 Seaswirl 2601 Walk Around I/O 2007 measures 102" wide, compared to 9" for the Seaswirl 1851 Center Console O/B 2007. 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 Seaswirl 1851 Center Console O/B 2007 or the Seaswirl 2601 Walk Around I/O 2007?
The Seaswirl 1851 Center Console O/B 2007 has the bigger tank at 62 gallons, versus 16 gallons on the Seaswirl 2601 Walk Around I/O 2007. That 46-gallon difference translates to roughly 138–230 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Seaswirl 1851 Center Console O/B 2007 and Seaswirl 2601 Walk Around I/O 2007 from the same manufacturer?
Yes — both the Seaswirl 1851 Center Console O/B 2007 and the Seaswirl 2601 Walk Around I/O 2007 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.