G3 Boats Guide  V143 T 2008 boat specs
G3 Boats
G3 Boats Guide V143 T 2008
2008
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VS
G3 Boats PB 18F 2005 boat specs
G3 Boats
G3 Boats PB 18F 2005
2005
View full specs →

G3 Boats Guide V143 T 2008 vs G3 Boats PB 18F 2005 — Same Brand, Different Boat

The G3 Boats Guide V143 T 2008 vs G3 Boats PB 18F 2005 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.

Size is the most obvious dividing line here. The G3 Boats PB 18F 2005 measures 18,0 feet overall (2005), giving it roughly 4,0 additional feet of deck space compared to the G3 Boats Guide V143 T 2008 at 14,0 feet (2008). At 34 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.

The power gap is worth calling out. Rated to 75 hp, the G3 Boats PB 18F 2005 has a 50-hp advantage over the G3 Boats Guide V143 T 2008's 25-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the G3 Boats PB 18F 2005 carries 23 gallons versus 6 gallons in the G3 Boats Guide V143 T 2008. 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 G3 Boats PB 18F 2005 is rated for 7 passengers, while the G3 Boats Guide V143 T 2008 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the G3 Boats PB 18F 2005 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The G3 Boats Guide V143 T 2008 comes in at 1 lbs per hp versus 2 lbs per hp for the G3 Boats PB 18F 2005. 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: Choose the G3 Boats PB 18F 2005 if your priority is putting more people on the water — it handles 7 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The G3 Boats Guide V143 T 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
MakeG3 Boats
MakeG3 Boats
ModelGuide V143 T
ModelPB 18F
Model Year2008
Model Year2005
Measurements / Dimensions
Beam70 in
Beam8 ft. 6 in
Beam - Meters1.78
Beam - Meters2.59
Beam - Inches7
Beam - Inches102
Deadrise6℃
Deadrisenot available
Depth - Detail25 in
Depth - Detailnot available
Depth - Centimeters63.5
Depth - Centimetersnot available
Depth - Inches25
Depth - Inchesnot available
Weight - Detail340 lbs
Weight - Detail1,250 lbs
Weight - kg154.22
Weight - kg566.99
Weight - lbs.34
Weight - lbs.125
Width [transom] - Detail56 in
Width [transom] - Detailnot available
Height [transom]20 in
Height [transom]not available
Length - Feet14
Length - Feet18
Length - Inches3
Length - Inchesnot available
Length overall - Detail14 ft. 3 in
Length overall - Detail18 ft. 0 in
Length overall - Meters4.34
Length overall - Meters5.49
Length overall - Inches171
Length overall - Inches216
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull thickness0.064 ga
Hull thickness.080 + .080 gauge
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Engine/s standardYamaha
Engine/s standardnot available
Fuel tank capacity - Detail6 gal. portable
Fuel tank capacity - Detail23 gal
Fuel tank capacity - Liters22.71
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal6
Fuel tank capacity - Gal23
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeOutboard
Engine max25 hp
Engine max75 hp
Operational Info
Maximum capacity1,000 lbs
Maximum capacity1,500 lbs
Maximum people4 / 675 lbs
Maximum people7
Trailer Info
Trailer - Length over all17 ft. 3 in. Deduct 20 in. with Trail Guard tongue removed
Trailer - Length over all24 ft. 4 in
Trailer - Weight605 lbs
Trailer - Weight2,180 lbs
Trailer - Width78 in
Trailer - Width104 in
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter23 in. x 25 in. U-shaped pontoon logs w/ Maxi-Float foam

G3 Boats Guide V143 T 2008 vs G3 Boats PB 18F 2005 — Common Questions

Which is the larger boat — the G3 Boats Guide V143 T 2008 or the G3 Boats PB 18F 2005?
The G3 Boats PB 18F 2005 is the longer of the two at 18,0 feet overall. The G3 Boats Guide V143 T 2008 comes in at 14,0 feet, making it roughly 4,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the G3 Boats Guide V143 T 2008 or the G3 Boats PB 18F 2005?
For trailering, the G3 Boats Guide V143 T 2008 has the edge at 34 lbs dry weight versus 125 lbs for the G3 Boats PB 18F 2005. 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 G3 Boats PB 18F 2005 is rated to a maximum of 75 hp, giving it the larger power ceiling. The G3 Boats Guide V143 T 2008 tops out at 25 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 G3 Boats Guide V143 T 2008 is Coast Guard rated for 4 passengers, while the G3 Boats PB 18F 2005 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 Guide V143 T 2008 has a better power-to-weight ratio at 1 lbs per hp compared to 2 lbs per hp for the G3 Boats PB 18F 2005. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
What do the trailers weigh for the G3 Boats Guide V143 T 2008 and G3 Boats PB 18F 2005?
The trailer for the G3 Boats Guide V143 T 2008 is listed at 605 lbs and the G3 Boats PB 18F 2005 trailer at 2,180 lbs. Always add trailer weight to the boat's dry weight when checking your tow vehicle's gross trailer weight rating.
Which boat is wider, and does it affect trailering?
The G3 Boats PB 18F 2005 measures 102" wide, compared to 7" for the G3 Boats Guide V143 T 2008. 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 G3 Boats Guide V143 T 2008 or the G3 Boats PB 18F 2005?
The G3 Boats PB 18F 2005 has the bigger tank at 23 gallons, versus 6 gallons on the G3 Boats Guide V143 T 2008. That 17-gallon difference translates to roughly 51–85 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the G3 Boats Guide V143 T 2008 and G3 Boats PB 18F 2005 from the same manufacturer?
Yes — both the G3 Boats Guide V143 T 2008 and the G3 Boats PB 18F 2005 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.