Crestliner Sportsman 18 SC 2005 boat specs
Crestliner
Crestliner Sportsman 18 SC 2005
2005
View full specs →
VS
Crestliner Sportsman 18 SS 2008 boat specs
Crestliner
Crestliner Sportsman 18 SS 2008
2008
View full specs →

Crestliner Sportsman 18 SC 2005 vs Crestliner Sportsman 18 SS 2008 — Same Brand, Different Boat

The Crestliner Sportsman 18 SC 2005 vs Crestliner Sportsman 18 SS 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.

On paper these two are close siblings in the size department — Crestliner Sportsman 18 SC 2005 at 18,0 ft versus Crestliner Sportsman 18 SS 2008 at 18,0 ft. At 61 lbs and 67 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

Both boats share a closely matched power ceiling — 50 hp for the Crestliner Sportsman 18 SC 2005 and 50 hp for the Crestliner Sportsman 18 SS 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.

Both boats are rated for 7 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.

At this size, power-to-weight ratio matters more than outright horsepower. The Crestliner Sportsman 18 SC 2005 comes in at 1 lbs per hp versus 1 lbs per hp for the Crestliner Sportsman 18 SS 2008. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.

Bottom line: The Crestliner Sportsman 18 SC 2005 and Crestliner Sportsman 18 SS 2008 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeCrestliner
MakeCrestliner
ModelSportsman 18 SC
ModelSportsman 18 SS
Model Year2005
Model Year2008
Measurements / Dimensions
Beam78 in. (198 cm)
Beam78 in. (198 cm)
Beam - Meters1.98
Beam - Meters1.98
Beam - Inches78
Beam - Inches78
Weight - Detail610 lbs. (276 kg)
Weight - Detail670 lbs. (304 kg)
Weight - kg276.69
Weight - kg303.91
Weight - lbs.61
Weight - lbs.67
Width [transom] - Detail78 in. (198 cm)
Width [transom] - Detail78 in. (198 cm)
Height - Detail33.5 in. (85 cm)
Height - Detail33.5 in. (85 cm)
Height - Meters0.86
Height - Meters0.86
Height - Inches33.5
Height - Inches33.5
Height [transom]20 in. (51 cm)
Height [transom]20 in. (51 cm)
Length - Meters5.5
Length - Meters5.5
Length - Feet18
Length - Feet18
Length overall - Detail18 ft. 0 in. (5.5 m)
Length overall - Detail18 ft. 0 in. (5.5 m)
Length overall - Meters5.49
Length overall - Meters5.49
Length overall - Inches216
Length overall - Inches216
Deadrisenot available
Deadrise10℃
Body / Hull
Hull thicknessBottom: .100 Sides: .090 Transom: .125
Hull thicknessBottom: 0.090 in. Sides: 0.080 in. Transom: 0.125 in
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Engine max50 hp
Engine max50 hp
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Maximum capacity1,390 lbs. (630 kg)
Maximum capacity1,390 lbs. (630 kg)
Maximum people7
Maximum people7
Trailer Info
Trailer - DetailOptional
Trailer - Detailnot available

Crestliner Sportsman 18 SC 2005 vs Crestliner Sportsman 18 SS 2008 — Common Questions

Which is the larger boat — the Crestliner Sportsman 18 SC 2005 or the Crestliner Sportsman 18 SS 2008?
The Crestliner Sportsman 18 SS 2008 is the longer of the two at 18,0 feet overall. The Crestliner Sportsman 18 SC 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.
Which is easier to trailer — the Crestliner Sportsman 18 SC 2005 or the Crestliner Sportsman 18 SS 2008?
For trailering, the Crestliner Sportsman 18 SC 2005 has the edge at 61 lbs dry weight versus 67 lbs for the Crestliner Sportsman 18 SS 2008. 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.
How many people can each boat hold?
The Crestliner Sportsman 18 SC 2005 is Coast Guard rated for 7 passengers, while the Crestliner Sportsman 18 SS 2008 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 has the better power-to-weight ratio?
The Crestliner Sportsman 18 SC 2005 has a better power-to-weight ratio at 1 lbs per hp compared to 1 lbs per hp for the Crestliner Sportsman 18 SS 2008. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Crestliner Sportsman 18 SC 2005 and Crestliner Sportsman 18 SS 2008 share an 78 in. (198 cm) 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.
Are the Crestliner Sportsman 18 SC 2005 and Crestliner Sportsman 18 SS 2008 from the same manufacturer?
Yes — both the Crestliner Sportsman 18 SC 2005 and the Crestliner Sportsman 18 SS 2008 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.