Mako Boats 181 Inshore 2007 boat specs
Mako Boats
Mako Boats 181 Inshore 2007
2007
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VS
Mako Boats 21 LTS 2021 boat specs
Mako Boats
Mako Boats 21 LTS 2021
2021
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Mako Boats 181 Inshore 2007 vs Mako Boats 21 LTS 2021 — Same Brand, Different Boat

The Mako Boats 181 Inshore 2007 vs Mako Boats 21 LTS 2021 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 power gap is worth calling out. Rated to 150 hp, the Mako Boats 21 LTS 2021 has a 60-hp advantage over the Mako Boats 181 Inshore 2007's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Mako Boats 181 Inshore 2007 carries 35 gallons versus 6 gallons in the Mako Boats 21 LTS 2021. 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 Mako Boats 21 LTS 2021 is rated for 6 passengers, while the Mako Boats 181 Inshore 2007 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Mako Boats 21 LTS 2021 could be the deciding factor.

Bottom line: Choose the Mako Boats 21 LTS 2021 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 Mako Boats 181 Inshore 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
MakeMako Boats
Makenot available
Model181 Inshore
Modelnot available
Model Year2007
Model Yearnot available
Measurements / Dimensions
Beam90 in
Beamnot available
Beam - Meters2.29
Beam - Metersnot available
Beam - Inches9
Beam - Inchesnot available
Weight - Detail1,100 lbs
Weight - Detailnot available
Weight - kg498.95
Weight - kgnot available
Weight - lbs.11
Weight - lbs.not available
Height [transom]25 in
Height [transom]not available
Length - Feet18
Length - Feet21
Length overall - Detail18 ft. 0 in
Length overall - Detail21.00 ft
Length overall - Meters5.49
Length overall - Meters6.4
Length overall - Inches216
Length overall - Inches252
Draft Minnot available
Draft Min1.00 ft
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Engine/s standardMercury 90 EXLPTO 2-stroke
Engine/s standardnot available
Fuel tank capacity - Detail35 gal
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters132.49
Fuel tank capacity - Liters227.12
Fuel tank capacity - Gal35
Fuel tank capacity - Gal6
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeoutboard
Engine max90 hp
Engine maxnot available
Engine makenot available
Engine makeMercury
Horsepowernot available
Horsepower150 hp
Operational Info
Maximum capacity1,250 lbs
Maximum capacitynot available
Maximum people4 @ 600 lbs
Maximum peoplenot available
Boat typenot available
Boat typePower
Trailer Info
Trailer - DetailCustom, single-axle
Trailer - Detailnot available
Trailer - Length over all20 ft. 10 in
Trailer - Length over allnot available
Trailer - Weight2,100 lbs. (with boat)
Trailer - Weightnot available
Trailer - Width94 in
Trailer - Widthnot available

Mako Boats 181 Inshore 2007 vs Mako Boats 21 LTS 2021 — Common Questions

Which is the larger boat — the Mako Boats 181 Inshore 2007 or the Mako Boats 21 LTS 2021?
The Mako Boats 21 LTS 2021 is the longer of the two at 21,0 feet overall. The Mako Boats 181 Inshore 2007 comes in at 18,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Mako Boats 21 LTS 2021 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Mako Boats 181 Inshore 2007 tops out at 90 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 Mako Boats 181 Inshore 2007 is Coast Guard rated for 4 passengers, while the Mako Boats 21 LTS 2021 is certified for 6. 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 has the larger fuel tank — the Mako Boats 181 Inshore 2007 or the Mako Boats 21 LTS 2021?
The Mako Boats 181 Inshore 2007 has the bigger tank at 35 gallons, versus 6 gallons on the Mako Boats 21 LTS 2021. That 29-gallon difference translates to roughly 87–145 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Mako Boats 181 Inshore 2007 and Mako Boats 21 LTS 2021 from the same manufacturer?
Yes — both the Mako Boats 181 Inshore 2007 and the Mako Boats 21 LTS 2021 are built by Mako Boats. 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.