Crestliner Sportfish 2150 O/B 2006 boat specs
Crestliner
Crestliner Sportfish 2150 O/B 2006
2006
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VS
Crestliner Sportsman 18 SC 2004 boat specs
Crestliner
Crestliner Sportsman 18 SC 2004
2004
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Crestliner Sportfish 2150 O/B 2006 vs Crestliner Sportsman 18 SC 2004 — Same Brand, Different Boat

The Crestliner Sportfish 2150 O/B 2006 vs Crestliner Sportsman 18 SC 2004 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 250 hp, the Crestliner Sportfish 2150 O/B 2006 has a 245-hp advantage over the Crestliner Sportsman 18 SC 2004's 5-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Crestliner Sportfish 2150 O/B 2006 is rated for 9 passengers, while the Crestliner Sportsman 18 SC 2004 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Sportfish 2150 O/B 2006 could be the deciding factor.

Bottom line: Choose the Crestliner Sportfish 2150 O/B 2006 if your priority is putting more people on the water — it handles 9 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Crestliner Sportsman 18 SC 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.
General Boat Info
MakeCrestliner
MakeCrestliner
ModelSportfish 2150 O/B
ModelSportsman 18 SC
Model Year2006
Model Year2004
Measurements / Dimensions
Beam102 in. (259 cm)
Beam78 in
Beam - Meters2.59
Beam - Meters1.98
Beam - Inches102
Beam - Inches78
Deadrise17℃
Deadrisenot available
Depth - Detail30.5 in. (77 cm)
Depth - Detailnot available
Depth - Centimeters78.74
Depth - Centimetersnot available
Depth - Inches30.5
Depth - Inchesnot available
Weight - Detail2,050 lbs. (928 kg)
Weight - Detail610 lbs
Weight - kg929.86
Weight - kg276.69
Weight - lbs.205
Weight - lbs.61
Width [transom] - Detail102 in. (259 cm)
Width [transom] - Detailnot available
Height - Detail47 in. (119 cm)
Height - Detail33.5 in
Height - Meters1.19
Height - Meters0.86
Height - Inches47
Height - Inches33.5
Height [transom]25 in. (64 cm)
Height [transom]20 in
Length - Meters6.7
Length - Metersnot available
Length - Feet21
Length - Feetnot available
Length - Inches11
Length - Inchesnot available
Length overall - Detail21 ft. 11 in. (6.7 m)
Length overall - Detail18 ft
Length overall - Meters6.68
Length overall - Meters5.49
Length overall - Inches263
Length overall - Inches216
Body / Hull
Hull thicknessBottom: .125 Sides: .090 Transom: .125
Hull thicknessnot available
Engine and Drivetrain
Engine/s standard150XL Optimax
Engine/s standardnot available
Fuel tank capacity - Detail77 gal. (291 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters291.48
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal77
Fuel tank capacity - Galnot available
Drive typeOutboard
Drive typenot available
Engine max250 hp
Engine max5
Operational Info
Maximum capacity2,000 lbs. (907 kg)
Maximum capacity1390 lbs
Maximum people9
Maximum people7 Persons

Crestliner Sportfish 2150 O/B 2006 vs Crestliner Sportsman 18 SC 2004 — Common Questions

Which is easier to trailer — the Crestliner Sportfish 2150 O/B 2006 or the Crestliner Sportsman 18 SC 2004?
For trailering, the Crestliner Sportsman 18 SC 2004 has the edge at 61 lbs dry weight versus 205 lbs for the Crestliner Sportfish 2150 O/B 2006. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
Which boat can handle a bigger outboard?
The Crestliner Sportfish 2150 O/B 2006 is rated to a maximum of 250 hp, giving it the larger power ceiling. The Crestliner Sportsman 18 SC 2004 tops out at 5 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 Crestliner Sportfish 2150 O/B 2006 is Coast Guard rated for 9 passengers, while the Crestliner Sportsman 18 SC 2004 is certified for 7. 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 Crestliner Sportfish 2150 O/B 2006 measures 102" wide, compared to 78" for the Crestliner Sportsman 18 SC 2004. 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 Crestliner Sportfish 2150 O/B 2006 and Crestliner Sportsman 18 SC 2004 from the same manufacturer?
Yes — both the Crestliner Sportfish 2150 O/B 2006 and the Crestliner Sportsman 18 SC 2004 are built by Crestliner. 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.