84' (25.60m)

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2004 84' WEST BAY Motor Yacht Seattle Washington United States
$2,395,000 USD

The 2004 84' WEST BAY Cockpit Motor Yacht Arcturus is a yacht for sale located in Seattle, Washington, United States.


Washington State LLC owned

 This Magnificent West Bay SonShip  is one of the most highly customized yachts ever produced from the factory.  The original owner was a seasoned yachtsman and took a very long time figuring out how to design and build his perfect yacht with the help of the very talented crew at West Bay SonShip.  

The current owner being a seasoned yachtsman himself instantly reconised the level of detail that went into this yacht and how well she had been maintained so he waisted no time purchasing her.

"Arcturus" has been and continues to be maintained to the higest standard, living in her fresh water boat house when she is not out cruising during the summer months, the quality of care and maintenance shows everywhere through out the yacht. 

The 1,350 hp 12V2000 M90 MTU engines provide a cruise speed in the 20 knot range and can top out around 27 knots.  

Other features include twin 25kW gensets, two watermakers, hydraulic bow and stern thrusters, Wesmar stabilizers, massive house battery bank, 5kW inverter, massive cockpit, bait tank, crab jail, tackle center, abundant reefer/freezer space, and many more options that you wont see on any other West Bay SonShip.

This vessel won't last long, so schedule an appointment to view this magnificent yacht you won't be disappointed.

Contact the yacht broker to receive more information or schedule a showing of this 2004 84' WEST BAY Motor Yacht Cockpit Arcturus yacht for sale in Seattle, Washington, USA today!

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LENGTH 84' (25.60m)
BUILT 2004
LOCATION Seattle, Washington, USA
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"Arcturus" sleeps 6 guests in 3 staterooms each with ensuite heads, plus 2 more in the crew quarters aft with its own shower and head. The salon features a massive U-shaped sofa, coffee table, full entertainment system, wet bar, a custom glassware case on an electric lift, and abundant storage space. Moving forward and up several steps is the galley that is open to the pilothouse and backed up to a large dining settee. The guest accommodations are accessed via a curved companionway on the starboard/forward end of the pilothouse. The master is a full beam stateroom located in the mid ships section of the boat. The VIP is in the forepeak and the guest stateroom is located on the port side between the master and VIP. All three staterooms have ensuite heads, which was not  common on most West Bays of this size.

The flybridge can be accessed via a stairway from the pilothouse or a companionway ladder from the aft deck. Access to the crew quarters is gained via the cockpit, and features one stateroom with over/under twin berths, and ensuite head with stall shower, and grew galley/utility area is located to the starboard that houses a  very handy full sized Sub Zero refridgerator.


  •  Custom U-shaped sofa
  •  Custom coffee table w/storage
  •  (2) customs chairs
  •  46" Samsung LCD TV mounted on rotating arm
  •  Built-in stereo and entertainment system
  •  Built-in glass storage 
  •  Built-in wine storage
  •  Custom handcrafted glass storage on electric lift 


  •  Full-sized Sub-Zero Reefer/Freezer 561/F
  •  Broan trash compactor
  •  Panasonic microwave
  •  Miele oven H373-2B
  •  Miele 4-burner electric cooktop
  •  Miele dishwasher
  •  Stainless steel sink
  •  Garburator garbage disposal

Master Stateroom:

  •  Centerline king-sized sized berth
  •  (2) large cedar-lined hanging lockers
  •  32" Samsung LCD TV
  •  (4) opening Portlights
  •  Huge under-berth storage area
  •  Large stall shower
  •  Furuno RD-30 multi display monitor mounted on bulkhead
  •  Safe located under bed
  • Office desk with custom chair

Master head:

  •  Twin Metolius oval sinks
  •  Porcelain tile countertop with custom engravings
  •  Porcelain tile floor
  •  Nuheat floor heating system
  •  Myson towel warmer
  •  Large fiberglass shower

VIP Stateroom:

  •  Centerline queen-sized berth
  •  Cedar lined hanging locker
  •  15" Sharp Aquos flat panel TV
  •  Sony DVD player
  •  (2) reading lights
  •  (2) overhead hatches with house alarm

VIP Head:

  •  Metolius oval sink
  •  Travertine tile flooring
  •  Nuheat floor heating system
  •  Travertine tile countertop
  •  Stall shower
  •  (1) opening portlight

Guest Stateroom:

  •  Side-by-side twin berths
  •  Built-in night stand
  •  (2) opening Portlights
  •  15" Sharp Aquos Flat panel TV
  •  Sony DVD
  •  Cedar lined hanging locker

Guest stateroom head:

  •  Metolius oval sink
  •  Travertine tile flooring
  •  Nuheat floor heating system
  •  Travertine tile countertop
  •  Stall shower

Crew Quarters:

  •  Over/under twin berths
  •  Cedar lined hanging locker
  •  Built-in cabinet storage
  •  Sharp Aquos flat panel television
  •  Sony DVD player
  •  Portlight
  •  Ensuite head with large stall shower

Crew Utility Room:

  •  Full sized Sub-Zero refrigerator
  •  Craftsman toolbox
  •  Panasonic microwave
  •  Toshiba LCD TV/DVD combo
  •  (2)  opening portlights
  •  Stainless steel Sink

Navigation and Electronics:

  •  Furuno Radar, 6kW
  •  Furuno Radar, 12kW
  •  Furuno Navnet Fishfinder
  •  (3) NES monitors
  •  10" Furuno Navnet display
  •  Simrad AP20 Autopilot
  •  ICOM IC-M602 VHF radio
  •  ICOM IC-M424G VHF radio
  •  KVH Azimuth 1000 digital compass
  •  Furuno PG1000 heading sensor
  •  Furuno Fax30 weather fax
  •  Wesmar CPS 1000 gyro controller
  •  The Carlisle and Finch Co. searchlight
  •  Furuno RD-30 Multi Display
  •  Nobletec TimeZero Odyssey navigation software
  •  Glomex TV antenna
  •  XM radio antenna
  •  Kahlenberg dual air horn 


  •  10" Furuno Navnet display
  •  Furuno RD-30 Multi Display
  •  Big Bay monitor
  •  Simrad AP20 autopilot control
  •  Icom M600 VHF
  •  Furuno GP-37 DGPS/WAAS
  • Am/Fm Stereo

Engine and Mechanical Equipment:

  •  (2) MTU 12V2000 diesels, 1350hp each, 2500 hours (September 2020)
  •  Dual Detroit Diesel SeaPro 511 fuel filters
  •  Twin Disc transmissions MG-6449A
  •  (2) 240VAC engine room ventilation blowers
  •  (2) Hydraulic PTO’s on main engines
  •  Block heaters
  •  Wesmar hydraulic bow and stern thrusters
  •  Wesmar stabilizers
  •  Teleflex hydraulic steering system
  •  X-Change-R oil change system
  •  (2) Horizon Seafari watermakers (1,400gpd) port has new membraines 2020
  •  240V water pump
  •  110V water pump
  •  Auxiliary cooling oil pump for transmissions

Electrical Equipment:

  •  (2) Northern Lights 25kW generators (approx. 3,700 hours, September 2017)
  •  12/24V DC circuit breakers
  •  120/240V AC circuit breakers
  •  Glendinning 50 amp shore power chord (stbd)
  •  Gelndinning 100am shore power chord (port)
  •  House battery bank: (18) Victron Energy 12-200 AGM, 1,500 ah (new 2018)
  •  15 KVA shore power transformer
  •  24 KVA shore power transformer
  •  Mastervolt Chargemaster 12/50-3
  •  Mastervolt Chargemaster 24/40-3
  •  Victron Quattro inverter, 5000W
  •  Main engine start bank, 24V
  •  Generator start bank, 24V
  •  CruiseAir reverse cycle air conditioning (6) chillers
  •  Miele stacked washer/dryer (pantry)
  • LED lighting


  •  Teak deck
  •  Bait tank with pump, timer, light, and viewing window
  •  (2) storage hatches
  •  Built-in storage cabinet
  •  Built-in tackle storage
  •  Raw and fresh water washdown
  •  Air line quick connect fitting with 20' of hose under bulwark
  •  Hinge style transom door
  •  (6) Sea Dog rod holders, flush mounted
  •  (8) stainless steel rocket launchers
  •  Custom fish cleaning table under lazarette cover, port side

Deck and Hull:

  •  Davis Stingray anchor (175 lbs)
  •  Marked anchor rode – 50' intervals with increment placard
  •  400’ ó" anchor chain
  •  Muir hydraulic windlass, 3,500 lbs
  •  Hatch to chain locker
  •  Stainless steel hand rails
  •  Sea Dog stainless steel cleats
  •  Full walk around side decks
  •  Built in fender and line storage
  •  (5) windshield wipers
  •  Large FRP swimstep with teak vented swim grid
  •  Crab tank with pump rescessed into the (swimstep)
  •  Large bait tank built into transom with seperate pump and window
  •  Custom made swim ladder
  •  Custom fish cleaning table that mounts into rod holder
  •  (4) stainless steel staple rails with storage socket
  •  Custom stern line mount on staple 
  •  (2) pop-up stainless steel cleats (swimstep)
  •  (2) underwater lights
  •  Factory FRP hard top with full enclosure
  •  3,000 lbs Steelhead Marine Hydraulic Davit
  •  (2) Hobie pedal kayaks
  •  Removable kayak rack
  •  Removable tender chocks with storage receivers
  •  (2) 24V Flood lights (radar arch)
  •  (4) 24V Flood lights (aft deck)
  •  Mast and vessel name accent lights
  •  Custom flagpole
  •  DBC 8-person liferaft
  •  (8) survival suits and SOLAS life jackets

Aft Deck:

  •  Teak deck
  •  Aft steering station with DDEC controls, thruster controls, autopilot controls, and
  •  Furuno repeater
  •  ICOM handset
  •  Fixed Corian surface table with stainless steel legs and slides
  •  Built-in settee with table and matching chairs
  •  Built in U-Line reefer/icemaker
  •  Built in High capasity Ice maker
  •  Loads of storage to port and starboard 


  •  Built-in raised L-shaped settee
  •  Settee table with built-in storage and aft slides
  •  (2) full sized chart drawer under settee steps
  •  Pilothouse doors with house alarm sensors and Phantom roll screens
  •  Slide out shelves on lower outboard cabinet
  •  Stidd helm chair
  •  Single sideband radio and antenna on house


  •  (2) West Bay style helm chairs
  •  L-shaped settee with fixed table with large storage beneath
  •  (2) Pop-up lights on table
  •  U-Line reefer/icemaker
  •  Built-in sink
  •  Built-in crab pot cooker
  •  DCS stainless steel BBQ
  •  SeaFreeze freezer
  •  FRP hardtop with (4) overhead hatches
  •  Isinglass enclosure


  •  16' Boston Whaler Dauntless tender with 115hp Mercury 4 stroke outboard

Customized Features and Additional equiptment:

  •  Installed 400' of half inch anchor chain vs. specified 3/8" inch chain
  •  Modified the forward berthing compartments to create three ensuite cabins vs. three cabins and two heads on the stock WBSS 78
  •  Master stateroom customized to install desk, book shelves and vanity table on port side and oversized chest of drawers on starboard size.
  •  Customized large storage area under master bed complete with safe
  •  All staterooms have customized audio/visual system including independent DirecTV receiver for each cabin
  •  Installed radiant deck heat in three forward heads
  •  Modified the standard pilothouse dining table to incorporate a table top extension, the ability to move the table fore and aft and created storage drawers in the table pedestal
  •  Doubled the width of the starboard side buffet opposite the galley for more storage and bigger serving surface
  •  Installed custom cabinets above the starboard side buffet for more storage
  •  Installed retractable custom cocktail glass storage in salon starboard side
  •  Installed large sofa sections in salon with storage underneath
  •  Lengthened boat deck by 4' and reinforced deck to support 3000# 16' Boston   Whaler tender
  • Installed large deck freezer on boat deck,
  • large built in DCS BBQ unit
  • Built in custom propane crab cooker
  • Built in dual bottle propane storage
  •  Custom rack to carry two Hobie pedal kayaks
  •  Engine room customized for as much redundancy as possible with twin MTU 12V2000 mains, twin Northern Lights 25KW Generators, twin 50 GPH watermakers
  •  Installed custom 1500KW gel cell house battery bank and Victron charger
  •  Aft of the engine room installed custom twin crew berthing compartment with adjoining head and shower, port side. On starboard side there is a large glass fronted refrigerator, microwave oven, tool box and storage drawers, and utility sink
  •  Installed 120 square foot fishing cockpit with live bait well, tackle storage cabinets, rod holders and two large lazarettes. Extra wide swim step has circulating sea water crab jail. Aft deck and cockpit are all teak covered


This rare fresh water kept, second owner boat is one of the finest West Bay SonShip's you will ever see. From the countless factory upgrades, the higest quality equiptment, redundant systems, down to the open checkbook maintainance schedule, this boat is a one of a kind and a true turn key vessel.

"You owe it to yourself to vew this beautiful vessel"


Potential purchasers should assume that items on the vessel at the time of viewing, but not specifically listed on this sheet, are not included with the sale of the yacht, some artwork and personal affects may be excluded.

Listing Marketed by

Pete Sponek
Hampton Yacht Group, LLC
901 Fairview Avenue Suite A150 Seattle, Washington, 98109 USA

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Pete Sponek
Hampton Yacht Group, LLC