Sun Tracker Bass Buggy 18 Signature Series 2009 boat specs
Sun Tracker
Sun Tracker Bass Buggy 18 Signature Series 2009
2009
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Sun Tracker Party Deck 21 I/O 2004 boat specs
Sun Tracker
Sun Tracker Party Deck 21 I/O 2004
2004
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Sun Tracker Bass Buggy 18 Signature Series 2009 vs Sun Tracker Party Deck 21 I/O 2004 — Same Brand, Different Boat

The Sun Tracker Bass Buggy 18 Signature Series 2009 vs Sun Tracker Party Deck 21 I/O 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 Sun Tracker Bass Buggy 18 Signature Series 2009 carries a rated maximum of 75 hp. Engine data for the Sun Tracker Party Deck 21 I/O 2004 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Sun Tracker Party Deck 21 I/O 2004 carries 41 gallons versus 3 gallons in the Sun Tracker Bass Buggy 18 Signature Series 2009. 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 Sun Tracker Party Deck 21 I/O 2004 is rated for 10 passengers, while the Sun Tracker Bass Buggy 18 Signature Series 2009 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sun Tracker Party Deck 21 I/O 2004 could be the deciding factor.

Bottom line: Choose the Sun Tracker Party Deck 21 I/O 2004 if your priority is putting more people on the water — it handles 10 passengers and at 0,0 ft it has the deck room to back that rating up comfortably. The Sun Tracker Bass Buggy 18 Signature Series 2009 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
MakeSun Tracker
MakeSun Tracker
ModelBass Buggy? 18 Signature Series
ModelParty Deck 21 I/O
Model Year2009
Model Year2004
Measurements / Dimensions
Weight - Detail1,720 lbs. approx. 1,885 lbs. approx. package weight
Weight - Detail2060 Lbs
Weight - kg780.18
Weight - kg934.4
Weight - lbs.172
Weight - lbs.206
Width [transom] - Detail8 ft. 1 in
Width [transom] - Detailnot available
Length - Feet2
Length - Feetnot available
Length overall - Detail20 ft. 0 in
Length overall - Detail20 ft. 7 in
Length overall - Meters6.1
Length overall - Meters6.27
Length overall - Inches24
Length overall - Inches247
Beamnot available
Beam102 in
Beam - Metersnot available
Beam - Meters2.59
Beam - Inchesnot available
Beam - Inches102
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter24 in
Tube diameternot available
Tube gauge0.08 5052 marine alloy
Tube gaugenot available
Engine and Drivetrain
Engine/s standard25 EL FourStroke EFI
Engine/s standard150 hp
Fuel tank capacity - Detail30 gal
Fuel tank capacity - Detail41 Gallons
Fuel tank capacity - Liters113.56
Fuel tank capacity - Liters155.2
Fuel tank capacity - Gal3
Fuel tank capacity - Gal41
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typenot available
Engine max75 hp
Engine maxnot available
Operational Info
Maximum capacity1,475 lbs
Maximum capacity2045 Lbs
Maximum people7 (985 lbs.)
Maximum people10 Persons

Sun Tracker Bass Buggy 18 Signature Series 2009 vs Sun Tracker Party Deck 21 I/O 2004 — Common Questions

Which is easier to trailer — the Sun Tracker Bass Buggy 18 Signature Series 2009 or the Sun Tracker Party Deck 21 I/O 2004?
For trailering, the Sun Tracker Bass Buggy 18 Signature Series 2009 has the edge at 172 lbs dry weight versus 206 lbs for the Sun Tracker Party Deck 21 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.
What is the maximum horsepower rating for these boats?
The Sun Tracker Bass Buggy 18 Signature Series 2009 has a documented max rating of 75 hp. Engine specifications for the Sun Tracker Party Deck 21 I/O 2004 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Sun Tracker Bass Buggy 18 Signature Series 2009 is Coast Guard rated for 7 passengers, while the Sun Tracker Party Deck 21 I/O 2004 is certified for 10. 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 larger fuel tank — the Sun Tracker Bass Buggy 18 Signature Series 2009 or the Sun Tracker Party Deck 21 I/O 2004?
The Sun Tracker Party Deck 21 I/O 2004 has the bigger tank at 41 gallons, versus 3 gallons on the Sun Tracker Bass Buggy 18 Signature Series 2009. 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 Sun Tracker Bass Buggy 18 Signature Series 2009 and Sun Tracker Party Deck 21 I/O 2004 from the same manufacturer?
Yes — both the Sun Tracker Bass Buggy 18 Signature Series 2009 and the Sun Tracker Party Deck 21 I/O 2004 are built by Sun Tracker. 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.