Triton Boats 186 Magnum DC 2005 boat specs
Triton Boats
Triton Boats 186 Magnum DC 2005
2005
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VS
Triton Boats SF-188 2008 boat specs
Triton Boats
Triton Boats SF-188 2008
2008
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Triton Boats 186 Magnum DC 2005 vs Triton Boats SF-188 2008 — Same Brand, Different Boat

The Triton Boats 186 Magnum DC 2005 vs Triton Boats SF-188 2008 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.

Both boats share a closely matched power ceiling — 150 hp for the Triton Boats 186 Magnum DC 2005 and 150 hp for the Triton Boats SF-188 2008. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Triton Boats SF-188 2008 carries 31 gallons versus 27 gallons in the Triton Boats 186 Magnum DC 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 Triton Boats SF-188 2008 is rated for 775 passengers, while the Triton Boats 186 Magnum DC 2005 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Triton Boats SF-188 2008 could be the deciding factor.

Bottom line: Choose the Triton Boats SF-188 2008 if your priority is putting more people on the water — it handles 775 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Triton Boats 186 Magnum DC 2005 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
MakeTriton Boats
MakeTriton Boats
Model186 Magnum DC
ModelSF-188
Model Year2005
Model Year2008
Measurements / Dimensions
Beam85 in
Beam91 in
Beam - Meters2.16
Beam - Meters2.31
Beam - Inches85
Beam - Inches91
Depth - DetailSide: 24 in
Depth - Detailnot available
Depth - Centimeters60.96
Depth - Centimetersnot available
Depth - Inches24
Depth - Inchesnot available
Weight - Detail1,300 lbs
Weight - Detailnot available
Weight - kg589.67
Weight - kgnot available
Weight - lbs.13
Weight - lbs.not available
Height [transom]22 in
Height [transom]not available
Length - Feet18
Length - Feet18
Length - Inches6
Length - Inchesnot available
Length overall - Detail18 ft. 6 in
Length overall - Detail18 ft. 0 in
Length overall - Meters5.64
Length overall - Meters5.49
Length overall - Inches222
Length overall - Inches216
Body / Hull
Hull thickness.1
Hull thicknessnot available
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail27 gal
Fuel tank capacity - Detail31 gal
Fuel tank capacity - Liters102.21
Fuel tank capacity - Liters117.35
Fuel tank capacity - Gal27
Fuel tank capacity - Gal31
Engine max150 hp
Engine max150 hp
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Maximum capacity1,100 lbs
Maximum capacitynot available
Maximum people4
Maximum people775 lbs
Storagenot available
StorageRear Storage/Baitwell: 84 qt. Front Storage Box: 282 qt. Rear Storage Boxes: 168 qt
Trailer Info
Trailer - Detailnot available
Trailer - Detailw/Swing Tongue: 21 ft. 0 in. w/o Swing Tongue: 23 ft. 0 in

Triton Boats 186 Magnum DC 2005 vs Triton Boats SF-188 2008 — Common Questions

Which is the larger boat — the Triton Boats 186 Magnum DC 2005 or the Triton Boats SF-188 2008?
The Triton Boats SF-188 2008 is the longer of the two at 18,0 feet overall. The Triton Boats 186 Magnum DC 2005 comes in at 18,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
How many people can each boat hold?
The Triton Boats 186 Magnum DC 2005 is Coast Guard rated for 4 passengers, while the Triton Boats SF-188 2008 is certified for 775. 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 Triton Boats SF-188 2008 measures 91" wide, compared to 85" for the Triton Boats 186 Magnum DC 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 Triton Boats 186 Magnum DC 2005 or the Triton Boats SF-188 2008?
The Triton Boats SF-188 2008 has the bigger tank at 31 gallons, versus 27 gallons on the Triton Boats 186 Magnum DC 2005. That 4-gallon difference translates to roughly 12–20 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Triton Boats 186 Magnum DC 2005 and Triton Boats SF-188 2008 from the same manufacturer?
Yes — both the Triton Boats 186 Magnum DC 2005 and the Triton Boats SF-188 2008 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.