Detailed Evaluation & Buyer Recommendation
Seaswirl 1851 Walk Around I/O 2007 vs Seaswirl 2101 Center Console O/B 2007 — Same Brand, Different Boat
The Seaswirl 1851 Walk Around I/O 2007 vs Seaswirl 2101 Center Console O/B 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.
On paper these two are close siblings in the size department — Seaswirl 1851 Walk Around I/O 2007 at 18,0 ft versus Seaswirl 2101 Center Console O/B 2007 at 21,0 ft. At 325 lbs and 315 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.
Both boats share a closely matched power ceiling — 225 hp for the Seaswirl 1851 Walk Around I/O 2007 and 225 hp for the Seaswirl 2101 Center Console O/B 2007. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Seaswirl 2101 Center Console O/B 2007 carries 105 gallons versus 62 gallons in the Seaswirl 1851 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 2101 Center Console O/B 2007 is rated for 6 passengers, while the Seaswirl 1851 Walk Around I/O 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 2101 Center Console O/B 2007 could be the deciding factor.
Bottom line: Choose the Seaswirl 2101 Center Console O/B 2007 if your priority is putting more people on the water — it handles 6 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Seaswirl 1851 Walk Around I/O 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
Model1851 Walk Around I/O
Model2101 Center Console O/B
Model Year2007
Model Year2007
Measurements / Dimensions
Beam - Meters2.29
Beam - Meters2.59
Beam - Inches9
Beam - Inches102
Bridge clearance - Detail66 in
Bridge clearance - Detail70 in
Bridge clearance - Meters1.68
Bridge clearance - Meters1.78
Bridge clearance - Inches66
Bridge clearance - Inches7
Deadrise20℃
Deadrise20℃
Draft [drive up] - Detail15 in
Draft [drive up] - Detail13 in
Draft [drive up] meters0.38
Draft [drive up] meters0.33
Draft [drive up] inches15
Draft [drive up] inches13
Draft [max] - Detail31 in
Draft [max] - Detail29 in
Draft [max] - Meters0.79
Draft [max] - Meters0.74
Draft [max] - Inches31
Draft [max] - Inches29
Weight - Detail3,250 lbs. w/ standard engine
Weight - Detail3,150 lbs. w/ standard engine
Weight - kg1474.17
Weight - kg1428.81
Weight - lbs.325
Weight - lbs.315
Length - Feet18
Length - Feet21
Length - Inches6
Length - Inches6
Length overall - Detail18 ft. 6 in
Length overall - Detail21 ft. 6 in
Length overall - Meters5.64
Length overall - Meters6.55
Length overall - Inches222
Length overall - Inches258
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Engine and Drivetrain
Engine/s standardVolvo 3.0 GL - 135 hp
Engine/s standardYamaha F150 TXR - 4-stroke
Fuel tank capacity - Detail62 gal
Fuel tank capacity - Detail105 gal
Fuel tank capacity - Liters234.7
Fuel tank capacity - Liters397.47
Fuel tank capacity - Gal62
Fuel tank capacity - Gal105
Drive typeI/O
Drive typeOutboard
Engine max225 hp Standard: 135 hp
Engine max225 hp Standard: 150 hp
Operational Info
Headroom4 ft. 8 in
Headroomnot available
Maximum capacity1,400 lbs
Maximum capacity1,650 lbs