Princecraft Fish n' Promenade  SP 186 FNP I/O AE 2004 boat specs
Princecraft
Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004
2004
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VS
Princecraft Vectra 21-2S 2012 boat specs
Princecraft
Princecraft Vectra 21-2S 2012
2012
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Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 vs Princecraft Vectra 21-2S 2012 — Same Brand, Different Boat

The Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 vs Princecraft Vectra 21-2S 2012 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 220 hp, the Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 has a 130-hp advantage over the Princecraft Vectra 21-2S 2012's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Princecraft Vectra 21-2S 2012 carries 31 gallons versus 6 gallons in the Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004. 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 Princecraft Vectra 21-2S 2012 is rated for 10 passengers, while the Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Princecraft Vectra 21-2S 2012 could be the deciding factor.

Bottom line: Choose the Princecraft Vectra 21-2S 2012 if your priority is putting more people on the water — it handles 10 passengers and at 21,5 ft it has the deck room to back that rating up comfortably. The Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.
General Boat Info
MakePrincecraft
MakePrincecraft
ModelFish n' Promenade SP 186 FNP I/O AE
ModelVectra 21-2S
Model Year2004
Model Year2012
Measurements / Dimensions
Beam94 in
Beam8 ft. 5 in. (2.6 m)
Beam - Meters2.39
Beam - Meters2.57
Beam - Inches94
Beam - Inches101
Draft [max] - Detail30 in
Draft [max] - Detailnot available
Draft [max] - Meters0.76
Draft [max] - Metersnot available
Draft [max] - Inches3
Draft [max] - Inchesnot available
Weight - Detail2245 lbs
Weight - Detail1,724 lbs. (782 kg)
Weight - kg1018.31
Weight - kg781.99
Weight - lbs.2245
Weight - lbs.1724
Height - Detail43 in
Height - Detailnot available
Height - Meters1.09
Height - Metersnot available
Height - Inches43
Height - Inchesnot available
Height [transom]32 in
Height [transom]not available
Length overall - Detail18 ft. 4 in
Length overall - Detail21 ft. 6 in. (6.6 m)
Length overall - Meters5.59
Length overall - Meters6.55
Length overall - Inches22
Length overall - Inches258
Length [deck]not available
Length [deck]20 ft. (6.1 m)
Length - Feetnot available
Length - Feet21.5
Engine and Drivetrain
Fuel tank capacity - Detail60 gal
Fuel tank capacity - Detail31 gal. (117 l)
Fuel tank capacity - Liters227.12
Fuel tank capacity - Liters117.35
Fuel tank capacity - Gal6
Fuel tank capacity - Gal31
Engine max220 HP
Engine max90 hp (67 kW)
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Maximum capacity1300 lbs
Maximum capacity1,948 lbs. (884 kg)
Maximum people8 Persons
Maximum people10 / 1,346 lbs. (611 kg)
Body / Hull
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typePontoon
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter25 in. (0.64 m)
Tube gaugenot available
Tube gauge0.080 in. (2 mm)
Number of tubesnot available
Number of tubes2

Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 vs Princecraft Vectra 21-2S 2012 — Common Questions

Which is easier to trailer — the Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 or the Princecraft Vectra 21-2S 2012?
For trailering, the Princecraft Vectra 21-2S 2012 has the edge at 1 724 lbs dry weight versus 2 245 lbs for the Princecraft Fish n' Promenade SP 186 FNP I/O AE 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 Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 is rated to a maximum of 220 hp, giving it the larger power ceiling. The Princecraft Vectra 21-2S 2012 tops out at 90 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 Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 is Coast Guard rated for 8 passengers, while the Princecraft Vectra 21-2S 2012 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 is wider, and does it affect trailering?
The Princecraft Vectra 21-2S 2012 measures 101" wide, compared to 94" for the Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004. 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 Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 or the Princecraft Vectra 21-2S 2012?
The Princecraft Vectra 21-2S 2012 has the bigger tank at 31 gallons, versus 6 gallons on the Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004. That 25-gallon difference translates to roughly 75–125 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 and Princecraft Vectra 21-2S 2012 from the same manufacturer?
Yes — both the Princecraft Fish n' Promenade SP 186 FNP I/O AE 2004 and the Princecraft Vectra 21-2S 2012 are built by Princecraft. 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.