Triton Boats 21 TRX 2018 boat specs
Triton Boats
Triton Boats 21 TRX 2018
2018
View full specs →
VS
Triton Boats A182 SFB-MT 2011 boat specs
Triton Boats
Triton Boats A182 SFB-MT 2011
2011
View full specs →

Triton Boats 21 TRX 2018 vs Triton Boats A182 SFB-MT 2011 — Same Brand, Different Boat

The Triton Boats 21 TRX 2018 vs Triton Boats A182 SFB-MT 2011 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 Triton Boats A182 SFB-MT 2011 tops out at 45 hp. Engine specs for the Triton Boats 21 TRX 2018 aren't listed — confirm with a dealer before selecting an outboard.

Both boats are rated for 6 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 Triton Boats 21 TRX 2018 at 21,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Triton Boats A182 SFB-MT 2011 at 18,0 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.
Measurements / Dimensions
Length overall - Detail21.00 ft
Length overall - Detail18 ft. (5.48 m)
Length - Feet21
Length - Feet18
Length overall - Meters6.4
Length overall - Meters5.49
Length overall - Inches252
Length overall - Inches216
Beamnot available
Beam75 in. (1.91 m)
Beam - Metersnot available
Beam - Meters1.91
Beam - Inchesnot available
Beam - Inches75
Depth - Detailnot available
Depth - Detail21 in. (0.53 m)
Depth - Centimetersnot available
Depth - Centimeters53.34
Depth - Inchesnot available
Depth - Inches21
Weight - Detailnot available
Weight - Detail475 lbs. (215 kg)
Weight - kgnot available
Weight - kg215.46
Weight - lbs.not available
Weight - lbs.475
Width [transom] - Detailnot available
Width [transom] - Detail52 in. (1.32 m) bottom
Height [transom]not available
Height [transom]20 in. (0.5 m)
Engine and Drivetrain
Fuel tank capacity - Gal47
Fuel tank capacity - Galnot available
Fuel tank capacity - Liters177.91
Fuel tank capacity - Litersnot available
Fuel typeGas
Fuel typeGas
Drive typeoutboard
Drive typeOutboard
Engine maxnot available
Engine max45 hp (34 kW) tiller 65 hp (48 kW) remote
Operational Info
Boat typePower
Boat typenot available
Maximum capacitynot available
Maximum capacity1,375 lbs. (624 kg)
Maximum peoplenot available
Maximum people6 / 815 lbs. (370 kg)
General Boat Info
Makenot available
MakeTriton Boats
Modelnot available
ModelA182 SFB-MT
Model Yearnot available
Model Year2011
Body / Hull
Hull materialnot available
Hull materialAluminum
Hull thicknessnot available
Hull thickness0.072 in. (1.83 mm)
Hull typenot available
Hull typeFlat
Trailer Info
Trailer - Length over allnot available
Trailer - Length over all22 ft. (6.71 m)

Triton Boats 21 TRX 2018 vs Triton Boats A182 SFB-MT 2011 — Common Questions

Which is the larger boat — the Triton Boats 21 TRX 2018 or the Triton Boats A182 SFB-MT 2011?
The Triton Boats 21 TRX 2018 is the longer of the two at 21,0 feet overall. The Triton Boats A182 SFB-MT 2011 comes in at 18,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The Triton Boats A182 SFB-MT 2011 has a documented max rating of 45 hp. Engine specifications for the Triton Boats 21 TRX 2018 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 Triton Boats 21 TRX 2018 is Coast Guard rated for 6 passengers, while the Triton Boats A182 SFB-MT 2011 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.
Are the Triton Boats 21 TRX 2018 and Triton Boats A182 SFB-MT 2011 from the same manufacturer?
Yes — both the Triton Boats 21 TRX 2018 and the Triton Boats A182 SFB-MT 2011 are built by Triton 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.