Maxum 1800MX Sport Boat 2006 boat specs
Maxum
Maxum 1800MX Sport Boat 2006
2006
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VS
Maxum 3500 SY 2007 boat specs
Maxum
Maxum 3500 SY 2007
2007
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Maxum 1800MX Sport Boat 2006 vs Maxum 3500 SY 2007 — Same Brand, Different Boat

The Maxum 1800MX Sport Boat 2006 vs Maxum 3500 SY 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 Maxum 3500 SY 2007 measures 34,0 feet overall (2007), giving it roughly 17,0 additional feet of deck space compared to the Maxum 1800MX Sport Boat 2006 at 17,0 feet (2006). Weight tells a clearer story for trailering families: the Maxum 1800MX Sport Boat 2006 tips the scales at 1 991 lbs — 440 lbs more than the Maxum 3500 SY 2007 at 1 551 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 420 hp, the Maxum 3500 SY 2007 has a 285-hp advantage over the Maxum 1800MX Sport Boat 2006's 135-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 21 gal and 24 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Maxum 3500 SY 2007 is rated for 10 passengers, while the Maxum 1800MX Sport Boat 2006 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Maxum 3500 SY 2007 could be the deciding factor.

Bottom line: Choose the Maxum 3500 SY 2007 if your priority is putting more people on the water — it handles 10 passengers and at 34,0 ft it has the deck room to back that rating up comfortably. The Maxum 1800MX Sport Boat 2006 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
Model1800MX Sport Boat
Model3500 SY
Model Year2006
Model Year2007
Measurements / Dimensions
Beam7 ft. 0 in. (2.13 m)
Beam12 ft. 2 in. (3.71 m)
Beam - Meters2.13
Beam - Meters3.71
Beam - Inches84
Beam - Inches146
Bridge clearance - Detail5 ft. 8 in. (1.73 m)
Bridge clearance - DetailMax: 12 ft. 6 in. (3.81 m)
Bridge clearance - Meters1.73
Bridge clearance - Meters3.81
Bridge clearance - Inches68
Bridge clearance - Inches15
Deadrise19℃
Deadrise15℃
Draft [drive up] - Detail1 ft. 6 in. (.46 m)
Draft [drive up] - Detail2 ft. 2 in. (0.66 m)
Draft [drive up] meters0.46
Draft [drive up] meters0.66
Draft [drive up] inches18
Draft [drive up] inches26
Draft [max] - Detail2 ft. 11 in. (.89 m)
Draft [max] - Detail3 ft. 1 in. (0.94 m)
Draft [max] - Meters0.89
Draft [max] - Meters0.94
Draft [max] - Inches35
Draft [max] - Inches37
Weight - Detail1,991 lbs. (903.1 kg) with standard engine
Weight - DetailWith standard engine: 15,510 lbs. (7,035 kg)
Weight - kg903.1
Weight - kg7035.21
Weight - lbs.1991
Weight - lbs.1551
Length - Meters5.36
Length - Meters10.64
Length - Feet17
Length - Feet34
Length - Inches7
Length - Inches11
Length overall - Detail17 ft. 7 in. (5.36 m)
Length overall - Detail34 ft. 11 in. (10.64 m)
Length overall - Meters5.36
Length overall - Meters10.64
Length overall - Inches211
Length overall - Inches419
Length [over all with swim platform]not available
Length [over all with swim platform]38 ft. 0 in. (11.58 m)
Engine and Drivetrain
Engine/s standard3.0 l Alpha I, 135 hp
Engine/s standardTwin 300 hp
Fuel tank capacity - Detail21 gal. (79.5 l)
Fuel tank capacity - Detail240 gal. (908.4 l)
Fuel tank capacity - Liters79.49
Fuel tank capacity - Liters908.5
Fuel tank capacity - Gal21
Fuel tank capacity - Gal24
Fuel typeGas
Fuel typeGas or Diesel
Drive typeInboard
Drive typeInboard - Twin
Engine max135 hp
Engine maxTwin 420 hp
Trailer Info
Trailer - Length over all22 ft. 6 in. (6.86 m)
Trailer - Length over allnot available
Trailer - Weight2,516 lbs. (1,141 kg) with standard engine
Trailer - Weightnot available
Trailer - Width7 ft. 9 in. (2.36 m)
Trailer - Widthnot available
Body / Hull
Hull materialnot available
Hull materialFiberglass
Operational Info
Water capacitynot available
Water capacity40 gal. (151.4 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Detail40 gal. (151.4 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters151.42
Holding tank capacity - Galnot available
Holding tank capacity - Gal4

Maxum 1800MX Sport Boat 2006 vs Maxum 3500 SY 2007 — Common Questions

Which is the larger boat — the Maxum 1800MX Sport Boat 2006 or the Maxum 3500 SY 2007?
The Maxum 3500 SY 2007 is the longer of the two at 34,0 feet overall. The Maxum 1800MX Sport Boat 2006 comes in at 17,0 feet, making it roughly 17,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Maxum 1800MX Sport Boat 2006 or the Maxum 3500 SY 2007?
For trailering, the Maxum 3500 SY 2007 has the edge at 1 551 lbs dry weight versus 1 991 lbs for the Maxum 1800MX Sport Boat 2006. 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 Maxum 3500 SY 2007 is rated to a maximum of 420 hp, giving it the larger power ceiling. The Maxum 1800MX Sport Boat 2006 tops out at 135 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 Maxum 1800MX Sport Boat 2006 is Coast Guard rated for 5 passengers, while the Maxum 3500 SY 2007 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 3500 SY 2007 measures 146" wide, compared to 84" for the Maxum 1800MX Sport Boat 2006. 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 1800MX Sport Boat 2006 or the Maxum 3500 SY 2007?
The Maxum 3500 SY 2007 has the bigger tank at 24 gallons, versus 21 gallons on the Maxum 1800MX Sport Boat 2006. That 3-gallon difference translates to roughly 9–15 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Maxum 1800MX Sport Boat 2006 and Maxum 3500 SY 2007 from the same manufacturer?
Yes — both the Maxum 1800MX Sport Boat 2006 and the Maxum 3500 SY 2007 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.