Maxum 1800SR3 Sport Boat 2005 boat specs
Maxum
Maxum 1800SR3 Sport Boat 2005
2005
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VS
Maxum 3100 SE 2009 boat specs
Maxum
Maxum 3100 SE 2009
2009
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Maxum 1800SR3 Sport Boat 2005 vs Maxum 3100 SE 2009 — Same Brand, Different Boat

The Maxum 1800SR3 Sport Boat 2005 vs Maxum 3100 SE 2009 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 Maxum 3100 SE 2009 tops out at 375 hp. Engine specs for the Maxum 1800SR3 Sport Boat 2005 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Maxum 3100 SE 2009 carries 165 gallons versus 28 gallons in the Maxum 1800SR3 Sport Boat 2005. 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 Maxum 3100 SE 2009 is rated for 10 passengers, while the Maxum 1800SR3 Sport Boat 2005 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Maxum 3100 SE 2009 could be the deciding factor.

Bottom line: Choose the Maxum 3100 SE 2009 if your priority is putting more people on the water — it handles 10 passengers and at 33,0 ft it has the deck room to back that rating up comfortably. The Maxum 1800SR3 Sport Boat 2005 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
MakeMaxum
MakeMaxum
Model1800SR3 Sport Boat
Model3100 SE
Model Year2005
Model Year2009
Measurements / Dimensions
Beam7 ft. 7 in. (2.31 m)
Beam10 ft. 7 in. (3.23 m)
Beam - Meters2.31
Beam - Meters3.23
Beam - Inches91
Beam - Inches127
Bridge clearance - Detail3 ft. 6 in. (1.07 m)
Bridge clearance - DetailMax: 10 ft. 8 in. (3.25 m)
Bridge clearance - Meters1.07
Bridge clearance - Meters3.25
Bridge clearance - Inches42
Bridge clearance - Inches128
Deadrise17℃
Deadrise19℃
Draft [drive up] - Detail1 ft. 8 in. (.51 m)
Draft [drive up] - Detail2 ft. 6 in. (0.76 m)
Draft [drive up] meters0.51
Draft [drive up] meters0.76
Draft [drive up] inches2
Draft [drive up] inches3
Draft [max] - Detail3 ft. 0 in. (.91 m)
Draft [max] - Detail3 ft. 5 in. (1.04 m)
Draft [max] - Meters0.91
Draft [max] - Meters1.04
Draft [max] - Inches36
Draft [max] - Inches41
Weight - Detail2,500 lbs. (1,134 kg) w/Std. Engine
Weight - DetailWith Standard Engine: 12,838 lbs. (5,823 kg)
Weight - kg1133.98
Weight - kg5823.21
Weight - lbs.25
Weight - lbs.12838
Length [over all with swim platform]20 ft. 1 in. (6.12 m)
Length [over all with swim platform]not available
Length overall - Detail18 ft. 9 in. (5.49 m)
Length overall - Detail33 ft. 4 in. (10.2 m)
Length overall - Meters5.72
Length overall - Meters10.16
Length overall - Inches225
Length overall - Inches4
Length - Metersnot available
Length - Meters10.2
Length - Feetnot available
Length - Feet33
Length - Inchesnot available
Length - Inches4
Engine and Drivetrain
Fuel tank capacity - Detail28 gal. (106 l)
Fuel tank capacity - Detail165 gal. (624.6 l)
Fuel tank capacity - Liters105.99
Fuel tank capacity - Liters624.59
Fuel tank capacity - Gal28
Fuel tank capacity - Gal165
Engine makenot available
Engine makeTwin-5.0L MPI Bravo® III
Fuel typenot available
Fuel typeGas or Diesel
Drive typenot available
Drive typeI/O - Twin
Horsepowernot available
HorsepowerTwin-260 hp
Engine maxnot available
Engine maxTwin 375 hp
Trailer Info
Trailer - Height6 ft. 3 in. (1.91 m)
Trailer - Heightnot available
Trailer - Length over all23 ft. 3 in. (7.09 m)
Trailer - Length over allnot available
Trailer - Weight3,160 lbs. (1,433 kg) w/Std. Engine
Trailer - Weightnot available
Trailer - Width8 ft. 1 in. (2.46 m)
Trailer - Widthnot available
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeModified Vee
Operational Info
Headnot available
HeadEnclosed
Water capacitynot available
Water capacity30 gal. (113.6 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Detail30 gal. (113.6 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters113.56
Holding tank capacity - Galnot available
Holding tank capacity - Gal3

Maxum 1800SR3 Sport Boat 2005 vs Maxum 3100 SE 2009 — Common Questions

Which is easier to trailer — the Maxum 1800SR3 Sport Boat 2005 or the Maxum 3100 SE 2009?
For trailering, the Maxum 1800SR3 Sport Boat 2005 has the edge at 25 lbs dry weight versus 12 838 lbs for the Maxum 3100 SE 2009. 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.
What is the maximum horsepower rating for these boats?
The Maxum 3100 SE 2009 has a documented max rating of 375 hp. Engine specifications for the Maxum 1800SR3 Sport Boat 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 Maxum 1800SR3 Sport Boat 2005 is Coast Guard rated for 5 passengers, while the Maxum 3100 SE 2009 is certified for 10. 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 Maxum 3100 SE 2009 measures 127" wide, compared to 91" for the Maxum 1800SR3 Sport Boat 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 Maxum 1800SR3 Sport Boat 2005 or the Maxum 3100 SE 2009?
The Maxum 3100 SE 2009 has the bigger tank at 165 gallons, versus 28 gallons on the Maxum 1800SR3 Sport Boat 2005. That 137-gallon difference translates to roughly 411–685 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Maxum 1800SR3 Sport Boat 2005 and Maxum 3100 SE 2009 from the same manufacturer?
Yes — both the Maxum 1800SR3 Sport Boat 2005 and the Maxum 3100 SE 2009 are built by Maxum. 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.