Crestliner Sportfish 1850 O/B 2005 boat specs
Crestliner
Crestliner Sportfish 1850 O/B 2005
2005
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VS
Crestliner Sportfish 2150 O/B 2006 boat specs
Crestliner
Crestliner Sportfish 2150 O/B 2006
2006
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Crestliner Sportfish 1850 O/B 2005 vs Crestliner Sportfish 2150 O/B 2006 — Same Brand, Different Boat

The Crestliner Sportfish 1850 O/B 2005 vs Crestliner Sportfish 2150 O/B 2006 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 Sportfish 1850 O/B 2005 at 18,0 ft versus Crestliner Sportfish 2150 O/B 2006 at 21,0 ft. At 147 lbs and 205 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.

The power gap is worth calling out. Rated to 250 hp, the Crestliner Sportfish 2150 O/B 2006 has a 75-hp advantage over the Crestliner Sportfish 1850 O/B 2005's 175-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Crestliner Sportfish 2150 O/B 2006 carries 77 gallons versus 39 gallons in the Crestliner Sportfish 1850 O/B 2005. 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 Sportfish 2150 O/B 2006 is rated for 9 passengers, while the Crestliner Sportfish 1850 O/B 2005 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Sportfish 2150 O/B 2006 could be the deciding factor.

Bottom line: Choose the Crestliner Sportfish 2150 O/B 2006 if your priority is putting more people on the water — it handles 9 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Crestliner Sportfish 1850 O/B 2005 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
ModelSportfish 1850 O/B
ModelSportfish 2150 O/B
Model Year2005
Model Year2006
Measurements / Dimensions
Beam96.5 in. (245 cm)
Beam102 in. (259 cm)
Beam - Meters2.46
Beam - Meters2.59
Beam - Inches96.5
Beam - Inches102
Depth - Detail27 in. (69 cm)
Depth - Detail30.5 in. (77 cm)
Depth - Centimeters68.58
Depth - Centimeters78.74
Depth - Inches27
Depth - Inches30.5
Weight - Detail1,470 lbs. (667 kg)
Weight - Detail2,050 lbs. (928 kg)
Weight - kg666.78
Weight - kg929.86
Weight - lbs.147
Weight - lbs.205
Width [transom] - Detail96.5 in. (245 cm)
Width [transom] - Detail102 in. (259 cm)
Height - Detail41 in. (104 cm)
Height - Detail47 in. (119 cm)
Height - Meters1.04
Height - Meters1.19
Height - Inches41
Height - Inches47
Height [transom]25 in. (64 cm)
Height [transom]25 in. (64 cm)
Length - Meters5.5
Length - Meters6.7
Length - Feet18
Length - Feet21
Length - Inches2
Length - Inches11
Length overall - Detail18 ft. 2 in. (5.5 m)
Length overall - Detail21 ft. 11 in. (6.7 m)
Length overall - Meters5.54
Length overall - Meters6.68
Length overall - Inches218
Length overall - Inches263
Deadrisenot available
Deadrise17℃
Body / Hull
Hull thicknessBottom: .100 Sides: .090 Transom: .125
Hull thicknessBottom: .125 Sides: .090 Transom: .125
Engine and Drivetrain
Fuel tank capacity - Detail39 gal. (148 l)
Fuel tank capacity - Detail77 gal. (291 l)
Fuel tank capacity - Liters147.63
Fuel tank capacity - Liters291.48
Fuel tank capacity - Gal39
Fuel tank capacity - Gal77
Drive typeOutboard
Drive typeOutboard
Engine max175 hp
Engine max250 hp
Engine/s standardnot available
Engine/s standard150XL Optimax
Operational Info
Maximum capacity1,625 lbs. (737 kg)
Maximum capacity2,000 lbs. (907 kg)
Maximum people7
Maximum people9
Trailer Info
Trailer - DetailOptional
Trailer - Detailnot available

Crestliner Sportfish 1850 O/B 2005 vs Crestliner Sportfish 2150 O/B 2006 — Common Questions

Which is the larger boat — the Crestliner Sportfish 1850 O/B 2005 or the Crestliner Sportfish 2150 O/B 2006?
The Crestliner Sportfish 2150 O/B 2006 is the longer of the two at 21,0 feet overall. The Crestliner Sportfish 1850 O/B 2005 comes in at 18,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Crestliner Sportfish 1850 O/B 2005 or the Crestliner Sportfish 2150 O/B 2006?
For trailering, the Crestliner Sportfish 1850 O/B 2005 has the edge at 147 lbs dry weight versus 205 lbs for the Crestliner Sportfish 2150 O/B 2006. 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 2150 O/B 2006 is rated to a maximum of 250 hp, giving it the larger power ceiling. The Crestliner Sportfish 1850 O/B 2005 tops out at 175 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 Sportfish 1850 O/B 2005 is Coast Guard rated for 7 passengers, while the Crestliner Sportfish 2150 O/B 2006 is certified for 9. 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 Sportfish 2150 O/B 2006 measures 102" wide, compared to 97" for the Crestliner Sportfish 1850 O/B 2005. 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 Sportfish 1850 O/B 2005 or the Crestliner Sportfish 2150 O/B 2006?
The Crestliner Sportfish 2150 O/B 2006 has the bigger tank at 77 gallons, versus 39 gallons on the Crestliner Sportfish 1850 O/B 2005. That 38-gallon difference translates to roughly 114–190 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Crestliner Sportfish 1850 O/B 2005 and Crestliner Sportfish 2150 O/B 2006 from the same manufacturer?
Yes — both the Crestliner Sportfish 1850 O/B 2005 and the Crestliner Sportfish 2150 O/B 2006 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.