- Cruising Speed: 12 kn
- Maximum Speed: 27 kn
- Beam: 20' 0''
- Hull Material: Composite
- Max Draft: 5' 6''
- Displacement: 125,000 lb
- Fuel Tank: 1 x 2750|gallon
- Fresh Water: 1 x 400|gallon
- Holding: 1 x 200|gallon
- Max Passengers: 12
- Cabins: 4
- Heads: 4
86' West Bay SonShip Motor Yacht Arnitta
Extensive Refit in 2026 by West Shipyards, Inc.
Delta British Columbia
Introducing “Arnitta,” a highly customized 86-foot West Bay SonShip Pilothouse Motor Yacht with a commanding 20-foot beam, originally built in 2003 and extensively refitted in 2026. Constructed by West Bay Shipyards, in Delta, British Columbia, she features a robust vacuum bagged composite hull, utilizing Core-Cell technology and a modified-V design—delivering exceptional structural integrity, weight efficiency, and confident offshore performance.
Powered by twin MTU 12V2000 engines producing 1,480 horsepower each, “Arnitta” cruises comfortably at 12 knots and reaches speeds up to 27 knots, offering both efficient long-range capability and responsive performance when desired. With an approximate range of 1,450 nautical miles, she is well suited for extended Pacific Northwest cruising, Alaska passages, or coastal exploration further south or east.
Accommodations for up to eight guests include three well-appointed staterooms, complemented by private or ensuite heads and dedicated crew quarters. Her thoughtful layout balances privacy with livability, supporting both extended cruising and gracious entertaining aboard.
Her classic lines and confident running profile reflect the Dutch-influenced craftsmanship and proportion that define the West Bay SonShip family heritage. Thoughtfully upgraded and comprehensively serviced in 2026, “Arnitta” represents a rare opportunity to acquire a proven Pilothouse cruising platform with authentic custom pedigree and substantial recent investment.
SonShips are built to the highest standards, using state-of-the-art methods including fiberglass infusion, vacuum bag technology, sound vibration reduction and all with 316L Stainless Steel hardware and frameless windows.
Denison Yachting - San Francisco is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Randy Cowley Yacht Consultants.
Denison Yacht Sales offers the details of this yacht in good faith but can’t guarantee the accuracy of this information nor warrant the condition of this boat for sale. This yacht for sale is offered subject to prior sale, price change, or withdrawal from that yacht market without notice. She is offered as a convenience by this yacht broker to its clients and is not intended to convey direct representation of a specific yacht for sale.
Arnitta’s unique accommodation plan begins with a spacious full-beam 20-foot Main Salon finished in a rich American Cherry. Nautical inset joinery, with seagoing brass drawer pulls, reinforces her classic yacht-club character, while a Bausman bench-made chenille covered sofa, two deep brown leather wingback chairs, and an Alderwood Butler’s tray coffee table create a warm, coastal atmosphere.
Fabric Lambrequins frame the Hunter Douglas wood blinds and soften the expansive framless windows, while a discreetly concealed 42-inch plasma television is integrated within the custom entertainment center — preserving the salon’s refined aesthetic.
Other Electronics in the Entertainment Center:
The Gourmet Galley flows seamlessly into the raised Pilothouse/Command center so that it functions like the great room of a custom waterfront home. A forward-facing tufted leather settee and dual slim-line Stidd helm chairs, re-upholstered in 2026, create an inviting social hub equally suited to sightseeing, passage making, casual dining, or whale watching.
Arnitta's galley was intentionally designed to be larger than her popular 78' sister-ships, by stretching the galley/pilothouse space and relocating the Sub-Zero refrigerator to port, making the space lighter, and brighter, with a breakfast bar for morning coffee and afternoon wine and charcuterie.
Consequently, sight lines are exceptional, and the design encourages natural interaction between galley, helm, salon, aft deck and flybridge. Dual pilothouse doors open to wide walk-around side decks, enhancing ease of docking and anchoring. Integrated Phantom screens, concealed within the door frames, provide ventilation without compromising aesthetics or function
The state-of-the-art, climate controlled, Pilothouse/Command Center has a panoramic view. It features a centered forward Command Center, with dual STIDD helm chairs, re-upholstered in Ultra Leather in 2026. With a range of navigation equipment, a large L-shaped leather tufted chocolate brown Dining/Cruising Settee, a beautiful custom wood table with and Maple & holly flooring. A large chart drawer has plenty of room for paper charts next to electronics display.
Port & starboard Pilothouse Doors have recessed Phantom Screens, and beautiful custom Stainless Steel Stairway, with Maple and Holly floors, leads to/from the flybridge and out to the walk-around decks and bow. Two (2) overhead hatches, with screens, provide additional ventilation.
The accommodation plan was intentionally configured to allow for an expanded full-beam primary suite with his-and-hers heads, located aft of the stateroom for enhanced privacy. Appointments include Headhunter Royal Flush heads, heated towel warmers, and a Mr. Steam shower — features typically reserved for larger custom yachts.
Adjacent to the suite is a private library/office with built-in shelving, creating separation from guest areas and supporting extended cruising or live-aboard comfort.
This thoughtful interior configuration also allows the foredeck, aft deck, flybridge, and swim step to be proportionally larger than those found on comparable yachts — reinforcing Arnitta’s emphasis on usable space throughout.
The VIP guest stateroom reflects the same craftsmanship and material quality found throughout the yacht. A centerline queen berth provides easy access on both sides, while rich cherry joinery and softly radiused cabinetry create a calm, inviting atmosphere.
Cedar-lined hanging lockers and a built-in bureau offer generous storage for extended cruising. Individual reading lights, built-in nightstands, recessed overhead lighting, and opening hatches ensure excellent functionality, natural light, and ventilation.
A fully private ensuite head delivers true stateroom-level privacy — an arrangement more commonly associated with larger custom motor yachts — creating a comfortable and refined retreat for guests.
Flybridge
A centerline helm and navigation station, with dual helm chairs, sits beneath a hardtop and custom Barrette enclosure, providing excellent visibility and weather protection underway. There is a fully equipped BBQ, with propane system for dining, entertaining and enjoying an expansive view.
Aft Deck
Engine Room
Professional Grade Systems with Outstanding access. The engine room is well laid out and meticulously maintained, housing twin MTU 12V2000 engines, serviced for the 2026 cruising season.
Systems include:
Electrical & Power Systems
• Reconditioned shore power electrical system, including contractor boxes and Yacht-O-Matic;
serviced and tested 50-amp and 100-amp connections.
• Replaced house battery bank with eight (8) L16 AGM batteries (840 Ah total capacity).
• Installed Victron BMV-712 battery monitor.
• Replaced all engine start, engine control, and 12VDC auxiliary batteries.
• Replaced outdated engine start-to-control combiner and installed new remote disconnect to protect AGM batteries.
• Set up and fully tested all charging systems.
• Installed new Victron 5000W inverter with new helm control display.
• Replaced rope lighting throughout the vessel with LED lighting.
HVAC & Plumbing
• Replaced air conditioning raw water pump; tested system operation and cleaned return air filters.
• Cleaned and tested all shower and air-conditioning sumps.
• Serviced Headhunter Royal Flush toilet system and rebuilt crew head VacuFlush pump.
• Serviced domestic water pumps throughout vessel.
• Replaced galley dishwasher with new.
• Replaced galley sink domestic water filter with new.
• Replaced aft deck sink faucet with new.
• Replaced hydronic heating system with new Espar 24V HL3-35 unit.
• Serviced watermaker.
Mechanical & Propulsion
• Serviced main engines with oil and filter changes for 2026 cruising season.
• Serviced and cleaned transmission oil coolers.
• Replaced degraded hoses and clamps throughout vessel as required.
• Serviced both generators with oil and filter changes.
• Replaced hydraulic oil cooler.
• Changed hydraulic system oil and filters.
• Replaced steering oil cooler.
• Replaced steering system oil and filter.
• Replaced main prop shaft seal housing with new Tides Marine unit.
• Tested and serviced Wesmar stabilizer system including thru-seal housing replacement.
• Checked bilge pump operation and completed repairs as required.
Hull, Bottom & Exterior
• Replaced all bottom zincs.
• Applied full coat of Micron CSC bottom paint.
• Cleaned bottom and running gear.
• Completed full exterior polish and wax of hull and superstructure.
• Re-bedded aft swim grid and bow railings with new caulking.
• Refinished aft deck teak cap rail.
Navigation, Electronics & AV
• Reworked onboard audio and television systems.
• Installed new vessel camera system displayed at pilothouse helm.
• Updated navigation electronics with new radar and Furuno display.
Deck, Safety & Equipment
• Replaced windlass bow roller.
• Repositioned BBQ outside Command Bridge enclosure with new weather cover.
• Serviced life raft (January 2026).
• Serviced engine room fire suppression system and all handheld extinguishers.
• Reconditioned vessel tender: polished and waxed, serviced outboard, re-bedded deck hardware.
• Replaced vessel pressure washer.
• Removed hot tub, fabricated hinged lid, and converted space to storage.
Interior & Command Bridge
• Recovered pilothouse Stidd helm seats with new Ultraleather.
• Serviced pilothouse door rollers.
• Refurbished Command Bridge enclosure panels.
This level of recent investment significantly reduces ownership costs and positions “Arnitta” as one of the most compelling Turnkey Offerings in her class.
The Company offers this vessel in good faith but cannot guarantee the accuracy of this information or the condition of the vessel. Buyers are encouraged to conduct independent inspections and surveys. Vessel subject to prior sale, price change, or withdrawal without notice.
Contact our team to schedule a private showing.
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