Detailed Evaluation & Buyer Recommendation
Crestliner Grand Cayman 2685 I/O 2009 vs Crestliner Sportsman 18 SC 2004 — Same Brand, Different Boat
The Crestliner Grand Cayman 2685 I/O 2009 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.
Both boats share a closely matched power ceiling — 3 hp for the Crestliner Grand Cayman 2685 I/O 2009 and 5 hp for the Crestliner Sportsman 18 SC 2004. 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.
For family outings this is probably the sharpest distinction between the two. The Crestliner Grand Cayman 2685 I/O 2009 is rated for 14 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 Grand Cayman 2685 I/O 2009 could be the deciding factor.
Bottom line: Choose the Crestliner Grand Cayman 2685 I/O 2009 if your priority is putting more people on the water — it handles 14 passengers and at 25,0 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
ModelGrand Cayman 2685 I/O
ModelSportsman 18 SC
Model Year2009
Model Year2004
Measurements / Dimensions
Beam102 in. (259 cm)
Beam78 in
Beam - Meters2.59
Beam - Meters1.98
Beam - Inches102
Beam - Inches78
Weight - Detail3,400 lbs. (1,542 kg) with 5.0 l
Weight - Detail610 lbs
Weight - kg1542.21
Weight - kg276.69
Weight - lbs.34
Weight - lbs.61
Height [transom]27 in. (69 cm)
Height [transom]20 in
Length - Meters7.8
Length - Metersnot available
Length - Feet25
Length - Feetnot available
Length - Inches6
Length - Inchesnot available
Length overall - Detail25 ft. 6 in. (7.8 m)
Length overall - Detail18 ft
Length overall - Meters7.77
Length overall - Meters5.49
Length overall - Inches306
Length overall - Inches216
Height - Detailnot available
Height - Detail33.5 in
Height - Metersnot available
Height - Meters0.86
Height - Inchesnot available
Height - Inches33.5
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameterN/A
Tube diameternot available
Tube gauge0.080 in
Tube gaugenot available
Engine and Drivetrain
Fuel tank capacity - Detail35 gal. (132 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters132.49
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal35
Fuel tank capacity - Galnot available
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typenot available
Engine max3.0 l - 5.0 l
Engine max5
Operational Info
Maximum capacity2,000 lbs. (907 kg)
Maximum capacity1390 lbs
Maximum people14
Maximum people7 Persons