G3 Boats PB 18 Fish 2004 boat specs
G3 Boats
G3 Boats PB 18 Fish 2004
2004
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VS
G3 Boats PB 18 Fish 2006 boat specs
G3 Boats
G3 Boats PB 18 Fish 2006
2006
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G3 Boats PB 18 Fish 2004 vs G3 Boats PB 18 Fish 2006 — Same Brand, Different Boat

The G3 Boats PB 18 Fish 2004 vs G3 Boats PB 18 Fish 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 — G3 Boats PB 18 Fish 2004 at 18,0 ft versus G3 Boats PB 18 Fish 2006 at 18,0 ft. At 125 lbs and 125 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 — 75 hp for the G3 Boats PB 18 Fish 2004 and 75 hp for the G3 Boats PB 18 Fish 2006. 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. Both carry nearly identical fuel loads — 23 gal and 23 gal — so range won't be a tiebreaker here.

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.

At this size, power-to-weight ratio matters more than outright horsepower. The G3 Boats PB 18 Fish 2006 comes in at 2 lbs per hp versus 2 lbs per hp for the G3 Boats PB 18 Fish 2004. 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: The G3 Boats PB 18 Fish 2004 and G3 Boats PB 18 Fish 2006 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeG3 Boats
MakeG3 Boats
ModelPB 18 Fish
ModelPB 18 Fish
Model Year2004
Model Year2006
Measurements / Dimensions
Beam8 ft. 6 in
Beam8 ft. 6 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Weight - Detail1,250 lbs
Weight - Detail1,250 lbs
Weight - kg566.99
Weight - kg566.99
Weight - lbs.125
Weight - lbs.125
Length - Feet18
Length - Feet18
Length overall - Detail18 ft. 0 in
Length overall - Detail18 ft. 0 in
Length overall - Meters5.49
Length overall - Meters5.49
Length overall - Inches216
Length overall - Inches216
Engine and Drivetrain
Fuel tank capacity - Detail23 gal
Fuel tank capacity - Detail23 gal
Fuel tank capacity - Liters87.06
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal23
Fuel tank capacity - Gal23
Drive typeOutBoard
Drive typeOutboard
Engine max75 hp
Engine max75 hp
Operational Info
Maximum capacity1,000 lbs
Maximum capacity1,500 lbs
Maximum people7
Maximum people7
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter23 in. x 25
Tube gaugenot available
Tube gauge.080 Nosecone Gauge: .08
Trailer Info
Trailer - Length over allnot available
Trailer - Length over all24 ft. 4 in
Trailer - Weightnot available
Trailer - Weight2,180 lbs
Trailer - Widthnot available
Trailer - Width103 in

G3 Boats PB 18 Fish 2004 vs G3 Boats PB 18 Fish 2006 — Common Questions

Which is the larger boat — the G3 Boats PB 18 Fish 2004 or the G3 Boats PB 18 Fish 2006?
The G3 Boats PB 18 Fish 2006 is the longer of the two at 18,0 feet overall. The G3 Boats PB 18 Fish 2004 comes in at 18,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the G3 Boats PB 18 Fish 2004 or the G3 Boats PB 18 Fish 2006?
For trailering, the G3 Boats PB 18 Fish 2006 has the edge at 125 lbs dry weight versus 125 lbs for the G3 Boats PB 18 Fish 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.
How many people can each boat hold?
The G3 Boats PB 18 Fish 2004 is Coast Guard rated for 7 passengers, while the G3 Boats PB 18 Fish 2006 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.
Which boat has the better power-to-weight ratio?
The G3 Boats PB 18 Fish 2006 has a better power-to-weight ratio at 2 lbs per hp compared to 2 lbs per hp for the G3 Boats PB 18 Fish 2004. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Do these boats require an oversize trailer permit to tow on US highways?
Both the G3 Boats PB 18 Fish 2004 and G3 Boats PB 18 Fish 2006 share an 8 ft. 6 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.
How do the fuel tanks compare on the G3 Boats PB 18 Fish 2004 and G3 Boats PB 18 Fish 2006?
Both boats carry similar fuel loads — 23 gallons and 23 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the G3 Boats PB 18 Fish 2004 and G3 Boats PB 18 Fish 2006 from the same manufacturer?
Yes — both the G3 Boats PB 18 Fish 2004 and the G3 Boats PB 18 Fish 2006 are built by G3 Boats. 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.