Crestliner Grand Cayman 2485 I/O 2010 boat specs
Crestliner
Crestliner Grand Cayman 2485 I/O 2010
2010
View full specs →
VS
Crestliner Sportfish 1750 O/B 2004 boat specs
Crestliner
Crestliner Sportfish 1750 O/B 2004
2004
View full specs →

Crestliner Grand Cayman 2485 I/O 2010 vs Crestliner Sportfish 1750 O/B 2004 — Same Brand, Different Boat

The Crestliner Grand Cayman 2485 I/O 2010 vs Crestliner Sportfish 1750 O/B 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 2485 I/O 2010 and 14 hp for the Crestliner Sportfish 1750 O/B 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. Fuel capacity breaks the other way: the Crestliner Grand Cayman 2485 I/O 2010 carries 56 gallons versus 33 gallons in the Crestliner Sportfish 1750 O/B 2004. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Crestliner Grand Cayman 2485 I/O 2010 is rated for 12 passengers, while the Crestliner Sportfish 1750 O/B 2004 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Grand Cayman 2485 I/O 2010 could be the deciding factor.

Bottom line: Choose the Crestliner Grand Cayman 2485 I/O 2010 if your priority is putting more people on the water — it handles 12 passengers and at 23,5 ft it has the deck room to back that rating up comfortably. The Crestliner Sportfish 1750 O/B 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakeCrestliner
MakeCrestliner
ModelGrand Cayman 2485 I/O
ModelSportfish 1750 O/B
Model Year201
Model Year2004
Measurements / Dimensions
Beam102 in. (259 cm)
Beam89 in
Beam - Meters2.59
Beam - Meters2.26
Beam - Inches102
Beam - Inches89
Weight - Detail3,200 lbs. (1,451 kg) 3,613 lbs. (1,638 kg) with Tritoon
Weight - Detail1300 lbs
Weight - kg1638.83
Weight - kg589.67
Weight - lbs.3613
Weight - lbs.13
Length [at waterline]22 ft. (6.7 m) tube length
Length [at waterline]not available
Length - Feet23.5
Length - Feetnot available
Length overall - Detail23 ft. 6 in. (7.1 m)
Length overall - Detail17 ft. 1 in
Length overall - Meters7.16
Length overall - Meters5.21
Length overall - Inches282
Length overall - Inches205
Height - Detailnot available
Height - Detail41 in
Height - Metersnot available
Height - Meters1.04
Height - Inchesnot available
Height - Inches41
Height [transom]not available
Height [transom]25 in
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter27 in. (69 cm)
Tube diameternot available
Tube gauge0.080 in. tube 0.090 in. nose cone
Tube gaugenot available
Number of tubes2 or 3
Number of tubesnot available
Engine and Drivetrain
Fuel tank capacity - Detail35 gal. (132 l) 56 gal. (212 l) with Tritoon
Fuel tank capacity - Detail33 gal
Fuel tank capacity - Liters211.98
Fuel tank capacity - Liters124.92
Fuel tank capacity - Gal56
Fuel tank capacity - Gal33
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typenot available
Engine max3.0 - 4.3 l 3.0 - 5.0 l with Tritoon
Engine max14
Operational Info
Maximum capacity2,000 lbs. (907 kg)
Maximum capacity1425 lbs
Maximum people12
Maximum people6 Persons

Crestliner Grand Cayman 2485 I/O 2010 vs Crestliner Sportfish 1750 O/B 2004 — Common Questions

Which is easier to trailer — the Crestliner Grand Cayman 2485 I/O 2010 or the Crestliner Sportfish 1750 O/B 2004?
For trailering, the Crestliner Sportfish 1750 O/B 2004 has the edge at 13 lbs dry weight versus 3 613 lbs for the Crestliner Grand Cayman 2485 I/O 2010. 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 1750 O/B 2004 is rated to a maximum of 14 hp, giving it the larger power ceiling. The Crestliner Grand Cayman 2485 I/O 2010 tops out at 3 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 Grand Cayman 2485 I/O 2010 is Coast Guard rated for 12 passengers, while the Crestliner Sportfish 1750 O/B 2004 is certified for 6. 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 Grand Cayman 2485 I/O 2010 measures 102" wide, compared to 89" for the Crestliner Sportfish 1750 O/B 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.
Which boat has the larger fuel tank — the Crestliner Grand Cayman 2485 I/O 2010 or the Crestliner Sportfish 1750 O/B 2004?
The Crestliner Grand Cayman 2485 I/O 2010 has the bigger tank at 56 gallons, versus 33 gallons on the Crestliner Sportfish 1750 O/B 2004. That 23-gallon difference translates to roughly 69–115 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Crestliner Grand Cayman 2485 I/O 2010 and Crestliner Sportfish 1750 O/B 2004 from the same manufacturer?
Yes — both the Crestliner Grand Cayman 2485 I/O 2010 and the Crestliner Sportfish 1750 O/B 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.