Crestliner Sportfish 1800 I/O 2007 vs Crestliner Sportfish 1850 O/B 2004 - Boat Spec Comparison

Q: Which is easier to trailer — the Crestliner Sportfish 1800 I/O 2007 or the Crestliner Sportfish 1850 O/B 2004?

For trailering, the Crestliner Sportfish 1850 O/B 2004 has the edge at 147 lbs dry weight versus 2 105 lbs for the Crestliner Sportfish 1800 I/O 2007. 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.

Q: Which boat can handle a bigger outboard?

The Crestliner Sportfish 1850 O/B 2004 is rated to a maximum of 175 hp, giving it the larger power ceiling. The Crestliner Sportfish 1800 I/O 2007 tops out at 135 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.

Q: How many people can each boat hold?

The Crestliner Sportfish 1800 I/O 2007 is Coast Guard rated for 7 passengers, while the Crestliner Sportfish 1850 O/B 2004 is certified for 7. 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.

Q: Do these boats require an oversize trailer permit to tow on US highways?

Both the Crestliner Sportfish 1800 I/O 2007 and Crestliner Sportfish 1850 O/B 2004 share an 95 in. (241 cm) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.

Q: Which boat has the larger fuel tank — the Crestliner Sportfish 1800 I/O 2007 or the Crestliner Sportfish 1850 O/B 2004?

The Crestliner Sportfish 1850 O/B 2004 has the bigger tank at 39 gallons, versus 33 gallons on the Crestliner Sportfish 1800 I/O 2007. That 6-gallon difference translates to roughly 18–30 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Crestliner Sportfish 1800 I/O 2007 and Crestliner Sportfish 1850 O/B 2004 from the same manufacturer?

Yes — both the Crestliner Sportfish 1800 I/O 2007 and the Crestliner Sportfish 1850 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.

Boat Comparison

Crestliner Sportfish 1800 I/O 2007 vs Crestliner Sportfish 1850 O/B 2004

Crestliner

Crestliner Sportfish 1800 I/O 2007

2007

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Crestliner

Crestliner Sportfish 1850 O/B 2004

2004

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Detailed Evaluation & Buyer Recommendation

Crestliner Sportfish 1800 I/O 2007 vs Crestliner Sportfish 1850 O/B 2004 — Same Brand, Different Boat

The Crestliner Sportfish 1800 I/O 2007 vs Crestliner Sportfish 1850 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.

The power gap is worth calling out. Rated to 175 hp, the Crestliner Sportfish 1850 O/B 2004 has a 40-hp advantage over the Crestliner Sportfish 1800 I/O 2007's 135-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 1850 O/B 2004 carries 39 gallons versus 33 gallons in the Crestliner Sportfish 1800 I/O 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 7 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: Performance buyers should lean toward the Crestliner Sportfish 1850 O/B 2004 and its 175-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Crestliner Sportfish 1800 I/O 2007 with its 135-hp rating is the more economical daily driver.

General Boat Info

MakeCrestliner

ModelSportfish 1800 I/O

ModelSportfish 1850 O/B

Model Year2007

Model Year2004

Measurements / Dimensions

Beam95 in. (241 cm)

Beam95 in

Beam - Meters2.41

Beam - Inches95

Deadrise17℃

Deadrisenot available

Depth - Detail27 in. (69 cm)

Depth - Detailnot available

Depth - Centimeters68.58

Depth - Centimetersnot available

Depth - Inches27

Depth - Inchesnot available

Weight - Detail2,105 lbs. (955 kg) w/ 3 l, 4 cyl

Weight - Detail1470 lbs

Weight - kg954.81

Weight - kg666.78

Weight - lbs.2105

Weight - lbs.147

Width [transom] - Detail95 in. (241 cm)

Width [transom] - Detailnot available

Height - Detail41 in. (104 cm)

Height - Detail41 in

Height - Meters1.04

Height - Inches41

Length - Meters5.5

Length - Metersnot available

Length - Feet18

Length - Feetnot available

Length - Inches2

Length - Inchesnot available

Length overall - Detail18 ft. 2 in. (5.5 m)

Length overall - Detail18 ft. 2 in

Length overall - Meters5.54

Length overall - Inches218

Height [transom]not available

Height [transom]25 in

Body / Hull

Hull thicknessBottom: .100 Sides: .090 Transom: .125

Hull thicknessnot available

Engine and Drivetrain

Engine/s standard3.0 L Mercury

Engine/s standardnot available

Fuel tank capacity - Detail33 gal. (125 l)

Fuel tank capacity - Detail39 gal

Fuel tank capacity - Liters124.92

Fuel tank capacity - Liters147.63

Fuel tank capacity - Gal33

Fuel tank capacity - Gal39

Fuel typeGas

Fuel typenot available

Drive typeOutboard

Drive typenot available

Engine max135 hp

Engine max175

Operational Info

Maximum capacity1,280 lbs. (580 kg)

Maximum capacity1625 lbs

Maximum people7

Maximum people7 Persons

Crestliner Sportfish 1800 I/O 2007 vs Crestliner Sportfish 1850 O/B 2004 — Common Questions

Which is easier to trailer — the Crestliner Sportfish 1800 I/O 2007 or the Crestliner Sportfish 1850 O/B 2004?

For trailering, the Crestliner Sportfish 1850 O/B 2004 has the edge at 147 lbs dry weight versus 2 105 lbs for the Crestliner Sportfish 1800 I/O 2007. 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 1850 O/B 2004 is rated to a maximum of 175 hp, giving it the larger power ceiling. The Crestliner Sportfish 1800 I/O 2007 tops out at 135 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 1800 I/O 2007 is Coast Guard rated for 7 passengers, while the Crestliner Sportfish 1850 O/B 2004 is certified for 7. 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.

Do these boats require an oversize trailer permit to tow on US highways?

Both the Crestliner Sportfish 1800 I/O 2007 and Crestliner Sportfish 1850 O/B 2004 share an 95 in. (241 cm) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.

Which boat has the larger fuel tank — the Crestliner Sportfish 1800 I/O 2007 or the Crestliner Sportfish 1850 O/B 2004?

The Crestliner Sportfish 1850 O/B 2004 has the bigger tank at 39 gallons, versus 33 gallons on the Crestliner Sportfish 1800 I/O 2007. That 6-gallon difference translates to roughly 18–30 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Crestliner Sportfish 1800 I/O 2007 and Crestliner Sportfish 1850 O/B 2004 from the same manufacturer?

Yes — both the Crestliner Sportfish 1800 I/O 2007 and the Crestliner Sportfish 1850 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.

← Crestliner Sportfish 1800 I/O 2007 full specs ← Crestliner Sportfish 1850 O/B 2004 full specs