Crestliner CX 1860 2006 boat specs
Crestliner
Crestliner CX 1860 2006
2006
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VS
Crestliner Serenity 1700 2005 boat specs
Crestliner
Crestliner Serenity 1700 2005
2005
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Crestliner CX 1860 2006 vs Crestliner Serenity 1700 2005 — Same Brand, Different Boat

The Crestliner CX 1860 2006 vs Crestliner Serenity 1700 2005 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 CX 1860 2006 at 18,0 ft versus Crestliner Serenity 1700 2005 at 17,0 ft. At 1 lbs and 13 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 — 130 hp for the Crestliner CX 1860 2006 and 140 hp for the Crestliner Serenity 1700 2005. 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 Serenity 1700 2005 carries 33 gallons versus 21 gallons in the Crestliner CX 1860 2006. 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 Serenity 1700 2005 is rated for 6 passengers, while the Crestliner CX 1860 2006 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Serenity 1700 2005 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Crestliner CX 1860 2006 comes in at 0 lbs per hp versus 0 lbs per hp for the Crestliner Serenity 1700 2005. 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: Choose the Crestliner Serenity 1700 2005 if your priority is putting more people on the water — it handles 6 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Crestliner CX 1860 2006 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
ModelCX 186
ModelSerenity 17
Model Year2006
Model Year2005
Measurements / Dimensions
Beam81 in. (206 cm)
Beam89 in. (225 cm)
Beam - Meters2.06
Beam - Meters2.26
Beam - Inches81
Beam - Inches89
Deadrise10℃
Deadrisenot available
Weight - Detail1,000 lbs. (454 kg)
Weight - Detail1,300 lbs. (590 kg)
Weight - kg453.59
Weight - kg589.67
Weight - lbs.1
Weight - lbs.13
Width [transom] - Detail60 in. (152 cm)
Width [transom] - Detail89 in. (225 cm)
Height [transom]20 in. (51 cm)
Height [transom]20 in
Length - Meters5.5
Length - Meters5.2
Length - Feet18
Length - Feet17
Length overall - Detail18 ft. 0 in. (5.5 m)
Length overall - Detail17 ft. 1 in. (5.2 m)
Length overall - Meters5.49
Length overall - Meters5.21
Length overall - Inches216
Length overall - Inches205
Depth - Detailnot available
Depth - Detail26 in. (66 cm)
Depth - Centimetersnot available
Depth - Centimeters66.04
Depth - Inchesnot available
Depth - Inches26
Height - Detailnot available
Height - Detail41 in. (104 cm)
Height - Metersnot available
Height - Meters1.04
Height - Inchesnot available
Height - Inches41
Length - Inchesnot available
Length - Inches1
Body / Hull
Hull thicknessBottom: .100 Sides: .1
Hull thicknessBottom: .100 Sides: .090 Transom: .125
Engine and Drivetrain
Engine/s standard40ELPT
Engine/s standardnot available
Fuel tank capacity - Detail21 gal. (79 l)
Fuel tank capacity - Detail33 gal. (125 l)
Fuel tank capacity - Liters79.49
Fuel tank capacity - Liters124.92
Fuel tank capacity - Gal21
Fuel tank capacity - Gal33
Drive typeOutboard
Drive typeOutboard
Engine max130 hp
Engine max140 hp
Operational Info
Maximum capacity1,290 lbs. (585 kg)
Maximum capacity1,305 lbs. (592 kg)
Maximum people5
Maximum people6
Trailer Info
Trailer - Detailnot available
Trailer - DetailOptional

Crestliner CX 1860 2006 vs Crestliner Serenity 1700 2005 — Common Questions

Which is the larger boat — the Crestliner CX 1860 2006 or the Crestliner Serenity 1700 2005?
The Crestliner CX 1860 2006 is the longer of the two at 18,0 feet overall. The Crestliner Serenity 1700 2005 comes in at 17,0 feet, making it roughly 1,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Crestliner CX 1860 2006 or the Crestliner Serenity 1700 2005?
For trailering, the Crestliner CX 1860 2006 has the edge at 1 lbs dry weight versus 13 lbs for the Crestliner Serenity 1700 2005. 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 Serenity 1700 2005 is rated to a maximum of 140 hp, giving it the larger power ceiling. The Crestliner CX 1860 2006 tops out at 130 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 CX 1860 2006 is Coast Guard rated for 5 passengers, while the Crestliner Serenity 1700 2005 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 has the better power-to-weight ratio?
The Crestliner CX 1860 2006 has a better power-to-weight ratio at 0 lbs per hp compared to 0 lbs per hp for the Crestliner Serenity 1700 2005. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Crestliner Serenity 1700 2005 measures 89" wide, compared to 81" for the Crestliner CX 1860 2006. 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 CX 1860 2006 or the Crestliner Serenity 1700 2005?
The Crestliner Serenity 1700 2005 has the bigger tank at 33 gallons, versus 21 gallons on the Crestliner CX 1860 2006. That 12-gallon difference translates to roughly 36–60 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Crestliner CX 1860 2006 and Crestliner Serenity 1700 2005 from the same manufacturer?
Yes — both the Crestliner CX 1860 2006 and the Crestliner Serenity 1700 2005 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.