Triton Boats A1648 SFB 2011 vs Triton Boats Ambush 18 2009 - Boat Spec Comparison

Q: Which is the larger boat — the Triton Boats A1648 SFB 2011 or the Triton Boats Ambush 18 2009?

The Triton Boats Ambush 18 2009 is the longer of the two at 18,0 feet overall. The Triton Boats A1648 SFB 2011 comes in at 15,8 feet, making it roughly 2,2 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: Which boat can handle a bigger outboard?

The Triton Boats Ambush 18 2009 is rated to a maximum of 90 hp, giving it the larger power ceiling. The Triton Boats A1648 SFB 2011 tops out at 35 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 A1648 SFB 2011 is Coast Guard rated for 4 passengers, while the Triton Boats Ambush 18 2009 is certified for 4. 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: Which boat is wider, and does it affect trailering?

The Triton Boats Ambush 18 2009 measures 79" wide, compared to 7" for the Triton Boats A1648 SFB 2011. 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.

Q: Are the Triton Boats A1648 SFB 2011 and Triton Boats Ambush 18 2009 from the same manufacturer?

Yes — both the Triton Boats A1648 SFB 2011 and the Triton Boats Ambush 18 2009 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 A1648 SFB 2011 vs Triton Boats Ambush 18 2009

Triton Boats

Triton Boats A1648 SFB 2011

2011

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Triton Boats

Triton Boats Ambush 18 2009

2009

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Detailed Evaluation & Buyer Recommendation

Triton Boats A1648 SFB 2011 vs Triton Boats Ambush 18 2009 — Same Brand, Different Boat

Matching a flat Triton Boats A1648 SFB 2011 against a modified vee Triton Boats Ambush 18 2009 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

The power gap is worth calling out. Rated to 90 hp, the Triton Boats Ambush 18 2009 has a 55-hp advantage over the Triton Boats A1648 SFB 2011's 35-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

Both boats are rated for 4 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 Ambush 18 2009 at 18,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Triton Boats A1648 SFB 2011 at 15,8 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.

General Boat Info

MakeTriton Boats

ModelA1648 SFB

ModelAmbush 18

Model Year2011

Model Year2009

Measurements / Dimensions

Beam70 in. (1.77 m)

Beam79 in

Beam - Meters1.78

Beam - Meters2.01

Beam - Inches7

Beam - Inches79

Depth - Detail21 in. (0.53 m)

Depth - Detail22 in

Depth - Centimeters53.34

Depth - Centimeters55.88

Depth - Inches21

Depth - Inches22

Weight - Detail275 lbs. (125 kg)

Weight - Detailnot available

Weight - kg124.74

Weight - kgnot available

Weight - lbs.275

Weight - lbs.not available

Width [transom] - Detail48 in. (1.2 m) bottom

Width [transom] - Detail61 in

Height [transom]15 in. (0.38 m)

Height [transom]20 in

Length - Feet15.83

Length - Feet18

Length overall - Detail15 ft. 10 in. (4.82 m)

Length overall - Detail16 ft. 0 in

Length overall - Meters4.83

Length overall - Meters4.88

Length overall - Inches19

Length overall - Inches192

Body / Hull

Hull materialAluminum

Hull thickness0.072 in. (1.83 mm)

Hull thickness0.100 in

Hull typeFlat

Hull typeModified Vee

Engine and Drivetrain

Fuel typeGas

Drive typeOutboard

Engine max35 hp (26 kW)

Engine max90 hp

Fuel tank capacity - Detailnot available

Fuel tank capacity - Detail24 gal

Fuel tank capacity - Litersnot available

Fuel tank capacity - Liters90.85

Fuel tank capacity - Galnot available

Fuel tank capacity - Gal24

Operational Info

Maximum capacity973 lbs. (441 kg)

Maximum capacitynot available

Maximum people4 / 555 lbs. (252 kg)

Maximum people4 / 600 lbs

Trailer Info

Trailer - Length over all20 ft. (6.1 m)

Trailer - Length over allnot available

Trailer - Detailnot available

Trailer - DetailStandard

Triton Boats A1648 SFB 2011 vs Triton Boats Ambush 18 2009 — Common Questions

Which is the larger boat — the Triton Boats A1648 SFB 2011 or the Triton Boats Ambush 18 2009?

The Triton Boats Ambush 18 2009 is the longer of the two at 18,0 feet overall. The Triton Boats A1648 SFB 2011 comes in at 15,8 feet, making it roughly 2,2 ft shorter — a meaningful difference in deck room and overall on-water presence.

Which boat can handle a bigger outboard?

The Triton Boats Ambush 18 2009 is rated to a maximum of 90 hp, giving it the larger power ceiling. The Triton Boats A1648 SFB 2011 tops out at 35 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 A1648 SFB 2011 is Coast Guard rated for 4 passengers, while the Triton Boats Ambush 18 2009 is certified for 4. 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 Ambush 18 2009 measures 79" wide, compared to 7" for the Triton Boats A1648 SFB 2011. 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.

Are the Triton Boats A1648 SFB 2011 and Triton Boats Ambush 18 2009 from the same manufacturer?

Yes — both the Triton Boats A1648 SFB 2011 and the Triton Boats Ambush 18 2009 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 A1648 SFB 2011 full specs ← Triton Boats Ambush 18 2009 full specs