Stanley Boats Islander I/O 21

Stanley Boats Islander I/O 21 — all spec sheets

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Model Overview

Stanley Boats Islander I/O 21 Specifications

Length21.67 ft
Beam100 in
Weight2765 lbs
Max HP200 hp
Fuel33 gal
Capacity8 people
Years Made2011–2012
HullDeep Vee
MaterialAluminum

The Stanley Boats Islander I/O 21 was built across 2 model years, from 2011 through to 2012 — a aluminum deep vee design with i/o propulsion.

Documented specifications include 21.67 ft in overall length, a dry weight of 2765 lbs, a maximum engine rating of 200 hp, capacity for 8 people and a 33-gallon fuel tank. Click any year card below to view the full spec sheet.

Spec changes across years: HP rating updated — 200 hp from 2012.
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Stanley Boats Islander I/O 21 — Common Questions

What years was the Stanley Boats Islander I/O 21 produced?
Our records show the Stanley Boats Islander I/O 21 was available from 2011 through to 2012 — a production run of 2 model years. Use the year cards above to find the specific year you're researching.
How long is the Stanley Boats Islander I/O 21?
The Stanley Boats Islander I/O 21 measures 21.67 feet in overall length. Always confirm against the specific year sheet, as dimensions can vary between model year revisions.
How much does the Stanley Boats Islander I/O 21 weigh?
The Stanley Boats Islander I/O 21 has a documented dry weight of 2765 lbs. Add your motor, fuel, and gear when calculating total towing weight.
What is the maximum horsepower for the Stanley Boats Islander I/O 21?
The Stanley Boats Islander I/O 21 has a maximum engine rating of 200 hp. Always fit an engine at or below the rated maximum to stay within the builder's safety specification.
How many people can the Stanley Boats Islander I/O 21 carry?
The Stanley Boats Islander I/O 21 is rated for 8 passengers. As a practical guide, most experienced skippers aim for around 80% of rated capacity for a comfortable day on the water.
What hull type does the Stanley Boats Islander I/O 21 use?
The Stanley Boats Islander I/O 21 features a aluminum deep vee hull. Deep-V and modified-V hulls cut through chop efficiently and are popular for fishing and general runabout use.
What is the fuel capacity of the Stanley Boats Islander I/O 21?
The Stanley Boats Islander I/O 21 carries a 33-gallon fuel tank. Actual range depends on motor choice, load, and conditions.
Who makes the Stanley Boats Islander I/O 21?
The Stanley Boats Islander I/O 21 is manufactured by Stanley Boats. Browse the full Stanley Boats spec catalogue to compare other models from the same range.