Crestliner Backwater Series 1870 SC 2009 boat specs
Crestliner
Crestliner Backwater Series 1870 SC 2009
2009
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VS
Crestliner Grand Cayman 2885 I/O 2009 boat specs
Crestliner
Crestliner Grand Cayman 2885 I/O 2009
2009
View full specs →

Crestliner Backwater Series 1870 SC 2009 vs Crestliner Grand Cayman 2885 I/O 2009 — Same Brand, Different Boat

Matching a modified vee Crestliner Backwater Series 1870 SC 2009 against a pontoon Crestliner Grand Cayman 2885 I/O 2009 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 2885 I/O 2009 measures 27,0 feet overall (2009), giving it roughly 9,0 additional feet of deck space compared to the Crestliner Backwater Series 1870 SC 2009 at 18,0 feet (2009). Weight tells a clearer story for trailering families: the Crestliner Backwater Series 1870 SC 2009 tips the scales at 1 175 lbs — 800 lbs more than the Crestliner Grand Cayman 2885 I/O 2009 at 375 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 90 hp, the Crestliner Backwater Series 1870 SC 2009 has a 87-hp advantage over the Crestliner Grand Cayman 2885 I/O 2009'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 2885 I/O 2009 is rated for 16 passengers, while the Crestliner Backwater Series 1870 SC 2009 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Grand Cayman 2885 I/O 2009 could be the deciding factor.

Bottom line: Choose the Crestliner Grand Cayman 2885 I/O 2009 if your priority is putting more people on the water — it handles 16 passengers and at 27,0 ft it has the deck room to back that rating up comfortably. The Crestliner Backwater Series 1870 SC 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
MakeCrestliner
MakeCrestliner
ModelBackwater Series 1870 SC
ModelGrand Cayman 2885 I/O
Model Year2009
Model Year2009
Measurements / Dimensions
Beam90.5 in. (230 cm)
Beam102 in. (259 cm)
Beam - Meters2.31
Beam - Meters2.59
Beam - Inches90.5
Beam - Inches102
Deadrise10℃
Deadrisenot available
Weight - Detail1,175 lbs. (533 kg) hull
Weight - Detail3,750 lbs. (1,701 kg) with 5.7 l
Weight - kg532.97
Weight - kg1700.97
Weight - lbs.1175
Weight - lbs.375
Width [transom] - Detail70 in. (178 cm)
Width [transom] - Detailnot available
Height - Detail23 in. (58 cm)
Height - Detailnot available
Height - Meters0.58
Height - Metersnot available
Height - Inches23
Height - Inchesnot available
Height [transom]20 in. (51 cm)
Height [transom]not available
Length - Meters5.5
Length - Meters8.4
Length - Feet18
Length - Feet27
Length overall - Detail18 ft. 0 in. (5.5 m)
Length overall - Detail27 ft. 6 in. (8.4 m)
Length overall - Meters5.49
Length overall - Meters8.38
Length overall - Inches216
Length overall - Inches33
Length - Inchesnot available
Length - Inches6
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thickness0.100 in
Hull thicknessnot available
Hull typeModified Vee
Hull typePontoon
Engine and Drivetrain
Fuel tank capacity - DetailPortable
Fuel tank capacity - Detail35 gal. (132 l)
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeI/O
Engine max90 hp (outboard) 115 hp (jet)
Engine max3.0 l - 350 MAG
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters132.49
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal35
Operational Info
Maximum capacity1,290 lbs. (585 kg)
Maximum capacity2,500 lbs. (1,134 kg)
Maximum people5
Maximum people16
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter27 in. (69 cm)
Tube gaugenot available
Tube gauge0.080 in

Crestliner Backwater Series 1870 SC 2009 vs Crestliner Grand Cayman 2885 I/O 2009 — Common Questions

Which is the larger boat — the Crestliner Backwater Series 1870 SC 2009 or the Crestliner Grand Cayman 2885 I/O 2009?
The Crestliner Grand Cayman 2885 I/O 2009 is the longer of the two at 27,0 feet overall. The Crestliner Backwater Series 1870 SC 2009 comes in at 18,0 feet, making it roughly 9,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Crestliner Backwater Series 1870 SC 2009 or the Crestliner Grand Cayman 2885 I/O 2009?
For trailering, the Crestliner Grand Cayman 2885 I/O 2009 has the edge at 375 lbs dry weight versus 1 175 lbs for the Crestliner Backwater Series 1870 SC 2009. 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 Backwater Series 1870 SC 2009 is rated to a maximum of 90 hp, giving it the larger power ceiling. The Crestliner Grand Cayman 2885 I/O 2009 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 Backwater Series 1870 SC 2009 is Coast Guard rated for 5 passengers, while the Crestliner Grand Cayman 2885 I/O 2009 is certified for 16. 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 2885 I/O 2009 measures 102" wide, compared to 91" for the Crestliner Backwater Series 1870 SC 2009. 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 Backwater Series 1870 SC 2009 and Crestliner Grand Cayman 2885 I/O 2009 from the same manufacturer?
Yes — both the Crestliner Backwater Series 1870 SC 2009 and the Crestliner Grand Cayman 2885 I/O 2009 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.