Bennington 20SLi 2010 boat specs
Bennington
Bennington 20SLi 2010
2010
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VS
Bennington 2875 RLX I/O 2005 boat specs
Bennington
Bennington 2875 RLX I/O 2005
2005
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Bennington 20SLi 2010 vs Bennington 2875 RLX I/O 2005 — Same Brand, Different Boat

The Bennington 20SLi 2010 vs Bennington 2875 RLX I/O 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.

The Bennington 20SLi 2010 carries a rated maximum of 23 hp. Engine data for the Bennington 2875 RLX I/O 2005 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Both carry nearly identical fuel loads — 24 gal and 26 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Bennington 20SLi 2010 is rated for 23 passengers, while the Bennington 2875 RLX I/O 2005 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bennington 20SLi 2010 could be the deciding factor.

Bottom line: Choose the Bennington 20SLi 2010 if your priority is putting more people on the water — it handles 23 passengers and at 19,7 ft it has the deck room to back that rating up comfortably. The Bennington 2875 RLX I/O 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.
General Boat Info
MakeBennington
MakeBennington
Model20SLi
Model2875 RLX I/O
Model Year201
Model Year2005
Measurements / Dimensions
Beam8 ft. 6 in
Beam8 ft. 6 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Weight - Detail23 in. Tubes: 1,536 lbs. 25 in. Tubes: 1,611 lbs
Weight - Detailnot available
Weight - kg730.74
Weight - kgnot available
Weight - lbs.1611
Weight - lbs.not available
Length [deck]17 ft. 11 in
Length [deck]27 ft. 11 in
Length - Feet19.67
Length - Feet28
Length overall - Detail19 ft. 8 in
Length overall - Detail28 ft. 0 in
Length overall - Meters5.99
Length overall - Meters8.53
Length overall - Inches236
Length overall - Inches336
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter23 or 25 in
Tube diameter25 in
Tube gauge0.080 in
Tube gauge.090 in
Number of tubes2
Number of tubesnot available
Engine and Drivetrain
Fuel tank capacity - Detail24 gal
Fuel tank capacity - Detail26 gal. w/remote fill
Fuel tank capacity - Liters90.85
Fuel tank capacity - Liters98.42
Fuel tank capacity - Gal24
Fuel tank capacity - Gal26
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeI/O
Engine max23 in. Tubes: 60 hp 25 in. Tubes: 60 hp
Engine maxnot available
Operational Info
Maximum capacity23 in. Tubes: 1,095 lbs. 25 in. Tubes: 1,365 lbs
Maximum capacitynot available
Maximum people23 in. Tubes: 8 25 in. Tubes: 1
Maximum peoplenot available

Bennington 20SLi 2010 vs Bennington 2875 RLX I/O 2005 — Common Questions

Which is the larger boat — the Bennington 20SLi 2010 or the Bennington 2875 RLX I/O 2005?
The Bennington 2875 RLX I/O 2005 is the longer of the two at 28,0 feet overall. The Bennington 20SLi 2010 comes in at 19,7 feet, making it roughly 8,3 ft shorter — a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The Bennington 20SLi 2010 has a documented max rating of 23 hp. Engine specifications for the Bennington 2875 RLX I/O 2005 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 Bennington 20SLi 2010 is Coast Guard rated for 23 passengers, while the Bennington 2875 RLX I/O 2005 is certified for 8. 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 Bennington 20SLi 2010 and Bennington 2875 RLX I/O 2005 share an 8 ft. 6 in 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 Bennington 20SLi 2010 and Bennington 2875 RLX I/O 2005?
Both boats carry similar fuel loads — 24 gallons and 26 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Bennington 20SLi 2010 and Bennington 2875 RLX I/O 2005 from the same manufacturer?
Yes — both the Bennington 20SLi 2010 and the Bennington 2875 RLX I/O 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.