Smoker Craft 2040 I-O 2004 boat specs
Smoker Craft
Smoker Craft 2040 I-O 2004
2004
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VS
Smoker Craft S-8521  2007 boat specs
Smoker Craft
Smoker Craft S-8521 2007
2007
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Smoker Craft 2040 I-O 2004 vs Smoker Craft S-8521 2007 — Same Brand, Different Boat

The Smoker Craft 2040 I-O 2004 vs Smoker Craft S-8521 2007 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 125 hp, the Smoker Craft S-8521 2007 has a 97-hp advantage over the Smoker Craft 2040 I-O 2004's 28-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Smoker Craft 2040 I-O 2004 carries 51 gallons versus 24 gallons in the Smoker Craft S-8521 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 12 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 Smoker Craft S-8521 2007 and its 125-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Smoker Craft 2040 I-O 2004 with its 28-hp rating is the more economical daily driver.
General Boat Info
MakeSmoker Craft
MakeSmoker Craft
Model2040 I-O
ModelS-8521
Model Year2004
Model Year2007
Measurements / Dimensions
Beam102 in
Beam102 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Deadrise13℃
Deadrisenot available
Draft [max] - Detail14 in
Draft [max] - Detailnot available
Draft [max] - Meters0.36
Draft [max] - Metersnot available
Draft [max] - Inches14
Draft [max] - Inchesnot available
Weight - Detail2410 lbs
Weight - Detail1,950 lbs
Weight - kg1093.16
Weight - kg884.5
Weight - lbs.241
Weight - lbs.195
Length overall - Detail20 ft. 4 in
Length overall - Detail21 ft. 3 in
Length overall - Meters6.2
Length overall - Meters6.48
Length overall - Inches244
Length overall - Inches255
Length - Feetnot available
Length - Feet21
Length - Inchesnot available
Length - Inches3
Engine and Drivetrain
Fuel tank capacity - Detail51 gal
Fuel tank capacity - Detail24 gal
Fuel tank capacity - Liters193.06
Fuel tank capacity - Liters90.85
Fuel tank capacity - Gal51
Fuel tank capacity - Gal24
Engine max28
Engine max125 hp
Drive typenot available
Drive typeOutboard
Operational Info
Maximum people12 Persons
Maximum people12
Maximum capacitynot available
Maximum capacity2,200 lbs
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter25 in
Tube gaugenot available
Tube gauge.080 in

Smoker Craft 2040 I-O 2004 vs Smoker Craft S-8521 2007 — Common Questions

Which is easier to trailer — the Smoker Craft 2040 I-O 2004 or the Smoker Craft S-8521 2007?
For trailering, the Smoker Craft S-8521 2007 has the edge at 195 lbs dry weight versus 241 lbs for the Smoker Craft 2040 I-O 2004. 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 Smoker Craft S-8521 2007 is rated to a maximum of 125 hp, giving it the larger power ceiling. The Smoker Craft 2040 I-O 2004 tops out at 28 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 Smoker Craft 2040 I-O 2004 is Coast Guard rated for 12 passengers, while the Smoker Craft S-8521 2007 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Smoker Craft 2040 I-O 2004 and Smoker Craft S-8521 2007 share an 102 in 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 Smoker Craft 2040 I-O 2004 or the Smoker Craft S-8521 2007?
The Smoker Craft 2040 I-O 2004 has the bigger tank at 51 gallons, versus 24 gallons on the Smoker Craft S-8521 2007. That 27-gallon difference translates to roughly 81–135 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Smoker Craft 2040 I-O 2004 and Smoker Craft S-8521 2007 from the same manufacturer?
Yes — both the Smoker Craft 2040 I-O 2004 and the Smoker Craft S-8521 2007 are built by Smoker Craft. 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.