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21′ Boston Whaler Conquest R

Builder:  Boston Whaler
Model:  21 Conquest R
Year: 1991
Length: 21'
Beam: 8' 6"
Engine: Yamaha 200HP Outboard
Hull: Fiberglass
Location: Kailua-Kona, Island of Hawai'i
Trailer: Yes
49900
Price: $

21′ Boston Whaler Conquest R

Builder:  Boston Whaler
Model:  21 Conquest R
Year: 1991
Length: 21'
Beam: 8' 6"
Engine: Yamaha 200HP Outboard
Hull: Fiberglass
Location: Kailua-Kona, Island of Hawai'i
Trailer: Yes
Price: $
49900
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The Boston Whaler Conquest series has long been known for its durability, ride quality, and no-nonsense functionality—and this 1991 Conquest R is a standout example of why these boats have such a strong following. While the hull carries its original pedigree, the boat has been thoughtfully updated where it matters most, creating a reliable and capable platform that feels far newer than its age would suggest.

The biggest upgrade is the 2022 Yamaha 200HP outboard with approximately 170 hours. This modern repower transforms the boat, delivering dependable performance, improved efficiency, and peace of mind for offshore use. Combined with the inherent strength and design of the Whaler hull, it makes for a setup that is both practical and highly usable in Hawai‘i waters.

Beyond the engine, the boat has seen consistent care and meaningful improvements. Key systems have been updated, including pumps and onboard components, and the vessel is equipped with Simrad electronics along with a Garmin unit for navigation. Underwater lights have also been added, giving the boat a clean, updated feel both on and off the water.

The layout remains one of the most functional in its class, with a protected helm and full canvas enclosure, a comfortable cockpit for fishing or cruising, and a forward cabin with V-berth seating that provides space for storage, shade, or overnight capability. Wide side decks and bow access make moving around the boat easy, whether you’re setting lines, diving, or anchoring.

Overall, this is not a typical early-90s boat. It shows clean, has been properly maintained, and benefits from the kind of upgrades that matter most to today’s buyer. For someone looking for a proven offshore hull paired with modern power, this Conquest R represents a strong value and a turn-key opportunity to get on the water immediately.

 
  • 2022 Yamaha F200XB 200HP Outboard w/170 hours
  • Yamaha Single Control Binnacle
  • Water Fuel Separator
  • 93-Gallon Fuel tank w/ newer sending unit

Power List

  • 2022 Yamaha F200XB 200HP Outboard w/170 hours
  • Yamaha Single Control Binnacle
  • Water Fuel Separator
  • 93-Gallon Fuel tank w/ newer sending unit

Electronics List

  • Simrad Depth Sounder Screen
  • Garmin GPS MFD
  • VHF
  • Stereo
  • Electric Reel Plugs in Cockpit
  • Battery Charger
  • Lumitec Seablaze Underwater lights on transom
  • Airmar 1000W transducer & secondary shallow water transducer
  • Golight remote-controlled spotlight

 Additional Equipment

  • Full isinglass enclosure
  • Scuba tank holders
  • Stainless Plow anchor, chain and rode
  • Custom heavy-duty dive ladder
  • Windshield wiper

Trailer Specs

  • Venture Double Axle Aluminum I-beam frame with current safety and registration
Interested in this Boston Whaler,
call or email listing broker Justin Smith for more information
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Particulars given are believed to be correct but not guaranteed.  Subject to prior sale or withdrawal without notice.