Triton Boats TR-18 SE 2010 vs Triton Boats TR-186 DC & SC 2008 - Boat Spec Comparison

Q: Which is the larger boat — the Triton Boats TR-18 SE 2010 or the Triton Boats TR-186 DC & SC 2008?

The Triton Boats TR-18 SE 2010 is the longer of the two at 18,5 feet overall. The Triton Boats TR-186 DC & SC 2008 comes in at 18,0 feet, making it roughly 0,5 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: Which boat can handle a bigger outboard?

The Triton Boats TR-186 DC & SC 2008 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Triton Boats TR-18 SE 2010 tops out at 15 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.

Q: How many people can each boat hold?

The Triton Boats TR-18 SE 2010 is Coast Guard rated for 550 passengers, while the Triton Boats TR-186 DC & SC 2008 is certified for 550. 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.

Q: Do these boats require an oversize trailer permit to tow on US highways?

Both the Triton Boats TR-18 SE 2010 and Triton Boats TR-186 DC & SC 2008 share an 91 in beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.

Q: How do the fuel tanks compare on the Triton Boats TR-18 SE 2010 and Triton Boats TR-186 DC & SC 2008?

Both boats carry similar fuel loads — 36 gallons and 36 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Q: Are the Triton Boats TR-18 SE 2010 and Triton Boats TR-186 DC & SC 2008 from the same manufacturer?

Yes — both the Triton Boats TR-18 SE 2010 and the Triton Boats TR-186 DC & SC 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.

Boat Comparison

Triton Boats TR-18 SE 2010 vs Triton Boats TR-186 DC & SC 2008

Triton Boats

Triton Boats TR-18 SE 2010

2010

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Triton Boats

Triton Boats TR-186 DC & SC 2008

2008

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Detailed Evaluation & Buyer Recommendation

Triton Boats TR-18 SE 2010 vs Triton Boats TR-186 DC & SC 2008 — A Close Look at Two Modified Vees

When two boats share the same hull type — in this case both the Triton Boats TR-18 SE 2010 and the Triton Boats TR-186 DC & SC 2008 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

The power gap is worth calling out. Rated to 150 hp, the Triton Boats TR-186 DC & SC 2008 has a 135-hp advantage over the Triton Boats TR-18 SE 2010's 15-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 36 gal and 36 gal — so range won't be a tiebreaker here.

Both boats are rated for 550 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: Performance buyers should lean toward the Triton Boats TR-186 DC & SC 2008 and its 150-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Triton Boats TR-18 SE 2010 with its 15-hp rating is the more economical daily driver.

General Boat Info

MakeTriton Boats

ModelTR-18 SE

ModelTR-186 DC & SC

Model Year201

Model Year2008

Measurements / Dimensions

Beam91 in

Beam - Meters2.31

Beam - Inches91

Weight - Detail1,300 lbs

Weight - Detailnot available

Weight - kg589.67

Weight - kgnot available

Weight - lbs.13

Weight - lbs.not available

Length - Feet18.5

Length - Feet18

Length overall - Detail18 ft. 6 in

Length overall - Meters5.64

Length overall - Inches222

Length - Inchesnot available

Length - Inches6

Body / Hull

Hull materialFiberglass

Hull typeModified Vee

Engine and Drivetrain

Fuel tank capacity - Detail36 gal

Fuel tank capacity - Liters136.27

Fuel tank capacity - Gal36

Fuel typeGas

Drive typeOutboard

Horsepower15

Horsepowernot available

Engine maxnot available

Engine max150 hp

Operational Info

StorageRear Storage Boxes: 168 qt. Front Storage Box: 300 qt. Livewell: 36 gal. Built-in Ice Chest: 28 qt

StorageRear Storage Boxes: 168 qt. Front Storage Box: 300 qt

Maximum people550 lbs

Trailer Info

Trailer - Length over all20 ft. 0 in. with swing tongue 22 ft. 0 in. without swing tongue

Trailer - Length over allw/ Swing Tongue: 20 ft. 0 in. w/o Swing Tongue: 22 ft. 0 in

Triton Boats TR-18 SE 2010 vs Triton Boats TR-186 DC & SC 2008 — Common Questions

Which is the larger boat — the Triton Boats TR-18 SE 2010 or the Triton Boats TR-186 DC & SC 2008?

The Triton Boats TR-18 SE 2010 is the longer of the two at 18,5 feet overall. The Triton Boats TR-186 DC & SC 2008 comes in at 18,0 feet, making it roughly 0,5 ft shorter — a meaningful difference in deck room and overall on-water presence.

Which boat can handle a bigger outboard?

The Triton Boats TR-186 DC & SC 2008 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Triton Boats TR-18 SE 2010 tops out at 15 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 Triton Boats TR-18 SE 2010 is Coast Guard rated for 550 passengers, while the Triton Boats TR-186 DC & SC 2008 is certified for 550. 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.

Do these boats require an oversize trailer permit to tow on US highways?

Both the Triton Boats TR-18 SE 2010 and Triton Boats TR-186 DC & SC 2008 share an 91 in beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.

How do the fuel tanks compare on the Triton Boats TR-18 SE 2010 and Triton Boats TR-186 DC & SC 2008?

Both boats carry similar fuel loads — 36 gallons and 36 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Are the Triton Boats TR-18 SE 2010 and Triton Boats TR-186 DC & SC 2008 from the same manufacturer?

Yes — both the Triton Boats TR-18 SE 2010 and the Triton Boats TR-186 DC & SC 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.

← Triton Boats TR-18 SE 2010 full specs ← Triton Boats TR-186 DC & SC 2008 full specs