Crestliner CR 1648 T 2008 boat specs
Crestliner
Crestliner CR 1648 T 2008
2008
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Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 boat specs
Crestliner
Crestliner Grand Cayman 2485 I/O RFL TriToon 2010
2010
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Crestliner CR 1648 T 2008 vs Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 — Same Brand, Different Boat

Matching a modified vee Crestliner CR 1648 T 2008 against a pontoon Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 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.

Size is the most obvious dividing line here. The Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 measures 23,5 feet overall (2010), giving it roughly 8,5 additional feet of deck space compared to the Crestliner CR 1648 T 2008 at 15,0 feet (2008). Weight tells a clearer story for trailering families: the Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 tips the scales at 3 613 lbs — 3 338 lbs less than the Crestliner CR 1648 T 2008 at 275 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The power gap is worth calling out. Rated to 35 hp, the Crestliner CR 1648 T 2008 has a 32-hp advantage over the Crestliner Grand Cayman 2485 I/O RFL TriToon 2010's 3-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 Grand Cayman 2485 I/O RFL TriToon 2010 is rated for 12 passengers, while the Crestliner CR 1648 T 2008 caps at 4. 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 RFL TriToon 2010 could be the deciding factor.

Bottom line: Choose the Crestliner Grand Cayman 2485 I/O RFL TriToon 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 CR 1648 T 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
MakeCrestliner
MakeCrestliner
ModelCR 1648 T
ModelGrand Cayman 2485 I/O RFL Tritoon
Model Year2008
Model Year201
Measurements / Dimensions
Beam70 in. (178 cm)
Beam102 in. (259 cm)
Beam - Meters1.78
Beam - Meters2.59
Beam - Inches7
Beam - Inches102
Depth - Detail21 in. (53 cm)
Depth - Detailnot available
Depth - Centimeters53.34
Depth - Centimetersnot available
Depth - Inches21
Depth - Inchesnot available
Weight - Detail275 lbs. (125 kg)
Weight - Detail3,613 lbs. (1,638 kg)
Weight - kg124.74
Weight - kg1638.83
Weight - lbs.275
Weight - lbs.3613
Width [transom] - Detail48 in. (122 cm)
Width [transom] - Detailnot available
Height [transom]20 in. (51 cm)
Height [transom]not available
Length - Meters4.8
Length - Metersnot available
Length - Feet15
Length - Feet23.5
Length - Inches1
Length - Inchesnot available
Length overall - Detail15 ft. 10 in. (4.8 m)
Length overall - Detail23 ft. 6 in. (7.1 m)
Length overall - Meters4.83
Length overall - Meters7.16
Length overall - Inches19
Length overall - Inches282
Length [at waterline]not available
Length [at waterline]22 ft. (6.7 m) tube length
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thickness0.072 in
Hull thicknessnot available
Hull typeModified Vee
Hull typePontoon
Engine and Drivetrain
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeI/O
Engine max35 hp
Engine max3.0 - 5.0 l
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail56 gal. (212 l)
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters211.98
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal56
Operational Info
Maximum capacity973 lbs. (442 kg)
Maximum capacity2,000 lbs. (907 kg)
Maximum people4
Maximum people12
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter27 in. (69 cm)
Tube gaugenot available
Tube gauge0.080 in. tube 0.090 in. nose cone
Number of tubesnot available
Number of tubes3

Crestliner CR 1648 T 2008 vs Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 — Common Questions

Which is the larger boat — the Crestliner CR 1648 T 2008 or the Crestliner Grand Cayman 2485 I/O RFL TriToon 2010?
The Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 is the longer of the two at 23,5 feet overall. The Crestliner CR 1648 T 2008 comes in at 15,0 feet, making it roughly 8,5 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Crestliner CR 1648 T 2008 or the Crestliner Grand Cayman 2485 I/O RFL TriToon 2010?
For trailering, the Crestliner CR 1648 T 2008 has the edge at 275 lbs dry weight versus 3 613 lbs for the Crestliner Grand Cayman 2485 I/O RFL TriToon 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 CR 1648 T 2008 is rated to a maximum of 35 hp, giving it the larger power ceiling. The Crestliner Grand Cayman 2485 I/O RFL TriToon 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 CR 1648 T 2008 is Coast Guard rated for 4 passengers, while the Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 is certified for 12. 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 RFL TriToon 2010 measures 102" wide, compared to 7" for the Crestliner CR 1648 T 2008. 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 CR 1648 T 2008 and Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 from the same manufacturer?
Yes — both the Crestliner CR 1648 T 2008 and the Crestliner Grand Cayman 2485 I/O RFL TriToon 2010 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.