Bennington 23 SL I/O 2012 boat specs
Bennington
Bennington 23 SL I/O 2012
2012
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VS
Bennington 257 L 2005 boat specs
Bennington
Bennington 257 L 2005
2005
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Bennington 23 SL I/O 2012 vs Bennington 257 L 2005 — Same Brand, Different Boat

The Bennington 23 SL I/O 2012 vs Bennington 257 L 2005 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 — Bennington 23 SL I/O 2012 at 22,3 ft versus Bennington 257 L 2005 at 25,0 ft. Weight tells a clearer story for trailering families: the Bennington 23 SL I/O 2012 tips the scales at 2 811 lbs — 2 599 lbs more than the Bennington 257 L 2005 at 212 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 Bennington 23 SL I/O 2012 has a 195-hp advantage over the Bennington 257 L 2005's 125-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Bennington 23 SL I/O 2012 carries 62 gallons versus 26 gallons in the Bennington 257 L 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 12 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 Bennington 257 L 2005 at 25,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Bennington 23 SL I/O 2012 at 22,3 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.
General Boat Info
MakeBennington
MakeBennington
Model23 SL I/O
Model257 L
Model Year2012
Model Year2005
Measurements / Dimensions
Beam8 ft. 6 in
Beam8 ft
Beam - Meters2.59
Beam - Meters2.44
Beam - Inches102
Beam - Inches96
Weight - Detail2,811 lbs. excludes engine
Weight - Detail2,120 lbs
Weight - kg1275.05
Weight - kg961.62
Weight - lbs.2811
Weight - lbs.212
Length [at waterline]22 ft. 6 in. pontoon length
Length [at waterline]not available
Length [deck]21 ft. 11 in
Length [deck]24 ft. 11 in
Length - Feet22.33
Length - Feet25
Length overall - Detail22 ft. 4 in. plus outdrive (add 33 in. for optional swim platform)
Length overall - Detail25 ft. 0 in
Length overall - Meters6.81
Length overall - Meters7.62
Length overall - Inches268
Length overall - Inches3
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter25 in
Tube diameter23 in
Tube gauge0.080 / 0.125 in
Tube gauge.080 in
Number of tubes3
Number of tubesnot available
Engine and Drivetrain
Fuel tank capacity - Detail62 gal
Fuel tank capacity - Detail26 gal
Fuel tank capacity - Liters234.7
Fuel tank capacity - Liters98.42
Fuel tank capacity - Gal62
Fuel tank capacity - Gal26
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typeOutBoard
Engine max320 hp
Engine max125 hp
Operational Info
Maximum people12
Maximum people12
Maximum capacitynot available
Maximum capacity2,800 lbs

Bennington 23 SL I/O 2012 vs Bennington 257 L 2005 — Common Questions

Which is the larger boat — the Bennington 23 SL I/O 2012 or the Bennington 257 L 2005?
The Bennington 257 L 2005 is the longer of the two at 25,0 feet overall. The Bennington 23 SL I/O 2012 comes in at 22,3 feet, making it roughly 2,7 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Bennington 23 SL I/O 2012 or the Bennington 257 L 2005?
For trailering, the Bennington 257 L 2005 has the edge at 212 lbs dry weight versus 2 811 lbs for the Bennington 23 SL I/O 2012. 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 Bennington 23 SL I/O 2012 is rated to a maximum of 320 hp, giving it the larger power ceiling. The Bennington 257 L 2005 tops out at 125 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 Bennington 23 SL I/O 2012 is Coast Guard rated for 12 passengers, while the Bennington 257 L 2005 is certified for 12. 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 Bennington 23 SL I/O 2012 measures 102" wide, compared to 96" for the Bennington 257 L 2005. 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 Bennington 23 SL I/O 2012 or the Bennington 257 L 2005?
The Bennington 23 SL I/O 2012 has the bigger tank at 62 gallons, versus 26 gallons on the Bennington 257 L 2005. That 36-gallon difference translates to roughly 108–180 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Bennington 23 SL I/O 2012 and Bennington 257 L 2005 from the same manufacturer?
Yes — both the Bennington 23 SL I/O 2012 and the Bennington 257 L 2005 are built by Bennington. 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.