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Motor Yacht KOINKONIA is a 78’ / 23.77m yacht for sale, built and launched by yacht builder Princess Yachts. Delivered to a knowledgeable yacht owner in 2010. This luxury yacht sleeps up to 8 guests in 4 staterooms with accommodations for 2 crew in 1 cabin.

Please see Other Details below for complete specifications.


Listed by Worth Avenue Yachts - Seattle WA

THIS BOAT IS SUBJECT TO AN EXCLUSIVE LISTING AGREEMENT WITH WORTH AVENUE YACHTS - SEATTLE WA (425) 327-0994 AND IS NOT OFFERED FOR SALE BY HMY YACHT SALES, INC.. HMY Yacht Sales, Inc. is merely providing this information in an effort to represent you as a buyer in the purchase of this vessel.

Specifications Add to Favorites

Current Price: $1,895,000
Year: 2010
Engine Model: C32
Length: 78 ft
Gross Weight: --
Hull Material: --
State: CA
Draft: 5.42 ft
Fuel Capacity: 1457 Gallons
Fuel Type: diesel
Engine Manufacturer: Caterpillar
Beam: 18.5 ft
Max Speed: 38 kn
City: Huntington Beach
Country: US

Vessel Overview


One of the largest express yachts on the market, an enormous widebody interior and spectacular performance. This Princess V78 ranks among the most exciting models in the world. Access from the hydraulic bathing platform leads between twin sunbeds to a configurable cockpit, then forward to a full-service wet bar, dining area, and salon. The stylish main deck salon offers more elegant seating including a port side sofa that seats guests in comfort. The electric opening roof covers a living space that seamlessly connects to the world outside through full-length side windows. The KOINONIA's foredeck features seating with a large sun pad. Below deck, eight guests enjoy four beautifully appointed ensuite cabins, all bathed in natural light from large hull windows. A cabin aft serves guests or crew. The aft swim platform houses a garage and integrated launch system for a tender. Powered by Caterpillar C32 1,850hp diesel engines promise a top speed of nearly 40 knots — impressive numbers for a yacht this size. 


Key Features

  • LLC conveys with the boat
  • Low hours with current engine services including new aftercoolers (2020)
  • New interior soft goods 2021
  • New electronics 2021
  • All service records are available and up to date
  • New tenders including RIB and catamaran
  • Asea frequency converters for worldwide electrical power
  • Engine and genset serviced (11/2023)

You enter the saloon through triple sliding glass stainless steel doors. White leather sofas, wenge floors, and the beautiful high gloss walnut wood paneling finish complement this area. There are full length large windows to port and starboard which adds an airy, open feeling. The opening aft bulkhead window and sliding stainless steel framed doors give you a huge open space from the aft deck all the way forward to the windshield. If you choose to open the large hardtop sunroof while under way, the feeling and view is breathtaking. The hidden TV with electric lift and Satellite and Bose Lifestyle 5.1 systems offers quality entertainment and adds quality music to the atmosphere or you can watch movies.


  • U-shaped white leather sofa with coffee table to starboard
  • White leather sofa to port
  • Bar unit incorporating refrigerator, bottle, and glass storage to starboard
  • Entertainment center incorporating LED TV/DVD/radio/MP3 with power lift-linked to Bose system
  • 42" Samsung flat-screen TV is hidden and has a power lift system
  • All windows have safety glass
  • Electric opening window to starboard and aft
  • Blinds, curtains, or sunscreens on all windows and doors
  • Overhead downlighters and concealed lighting
  • The electrically operated opening sunroof
  • Double opening stainless steel framed salon door with drop window to starboard
  • CruisAir A/C w/ digital control
  • Wenge wood sole w/ white carpet in salon area
  • Aft deck, salon, galley, and master stateroom all have cool LED lighting
  • Large opening hardtop sunroof with custom panels that cover three clear windows overhead
  • M7 TracVision by KVH
Dining Area

There is a drink fridge forward with glass and bottle storage. Forward to port is formal dining for eight with white leather-covered L-shape sofa and 4 matching chairs surrounding a beautiful high gloss walnut dining table. Overhead is an opening hardtop sunroof. It is the width of the saloon and almost 8' long.


  • L-shaped dining table forward
  • White leather L-shape settee with 4 white leather chairs
  • Aft deck, salon, galley, and master stateroom all have cool LED lighting
Galley and Laundry Equipment
  • Vitrifrigo refrigerator and
  • 2 x Drawer freezer
  • Vitrifrigo icemaker
  • Twin stainless-steel sinks with Hansgrohe faucet
  • Neff dishwasher
  • Panasonic microwave/convection oven
  • White marble countertops
  • Four-zone ceramic hob w/ exhaust hood & light
  • Storage cupboards, drawers, and lockers
  • Waste bin
  • Cruisair A/C control


Laundry Equipment

  • Bosch combination washer/dryer unit
Owner's Stateroom

Large portlights bring in the light outside and keep this area bright and open. The island king sits on the forward bulkhead and there are bedside nightstands on each side. The dressing table and walk-in closet are to port. Starboard under the side windows is the leather chaise lounge. All the way aft is the Owner's suite bath with beautiful white marble floors and vanities. The towel warmer exemplifies the class this yacht represents.


  • Samsung flat screen 42" TV with SAT TV and Bose 3.2.1 sound system
  • Walk-in wardrobe
  • Built-in safe
  • Chaise lounge
  • Drawers, cupboards, and storage lockers
  • Overhead LED lights and individual berth lights
  • 2 x Chrome reading lamps
Owner's Ensuite
  • Twin white marble washbasins with Samuel Heath mixer taps
  • Large stall shower w/ Hans grohe fixture & white marble floors
  • Extractor fan
  • Mirror
  • Storage lockers
  • Dometic Vacuflush head
VIP Stateroom

Island berth with hanging lockers to port and starboard provides your guests with a very nice place to retire to after a day on the water. A Samsung 19' TV with Kenwood DVD and a Bose 3.2.1 sound system adds to their comfort.


  • Large double bed
  • Vanity unit with storage
  • Wardrobe with shelves
  • Drawers, cupboards, and storage lockers
  • LED TV/DVD/Radio/MP3
  • Overhead and individual berth lights
  • Deck hatch with fly screen and blind ensuite
VIP Ensuite
  • Washbasin with Monobloc mixer tap
  • Separate shower cubicle with automatic shower pump-out
  • Extractor fan
  • Mirror
  • Storage lockers
Port Guest Stateroom
  • 2 x Full-size single berths side by side
  • Wardrobe with shelf and hanging locker
  • Storage lockers
  • Downlighters and individual berth lights
  • 2 x Opening port lights
  • Wood Venetian blinds
  • Kenwood CD/DVD/MP3 player
  • Samsung 19" flat-screen TV
Port Guest Ensuite
  • Entry from the hall sees this head double as the day head
  • Marble floor and vanity
  • Separate stall shower
  • Washbasin with Samuel Heath mixer tap
  • Extractor fan
  • Mirror
Starboard Guest Stateroom
  • 2 x Full-size single berths (Bunk Bed)
  • Wardrobe with shelf and hanging locker
  • Storage lockers
  • Downlights and individual berth lights
  • 2 x Opening port lights
  • Wood Venetian blinds
  • Kenwood CD/DVD/MP3 player
  • Samsung 19" flat-screen TV
Starboard Ensuite
  • Marble floor and vanity
  • Separate stall shower
  • Washbasin with Samuel Heath mixer tap
  • Extractor fan
  • Mirror
Aft Deck
  • Spacious aft deck area
  • L-Shaped settee to starboard
  • Large U-shaped dining area with a teak table
  • Storage forward to starboard
  • Cockpit wet bar with stainless steel sink, top-loading cool box, electric barbecue, waste bin and storage
  • This area is easily accessed via port or starboard boarding steps from the swim platform
  • The hardtop covers much of the aft deck and a retractable Markilux sunshade extends all the way aft to cover the U-Shaped seating area
  • Just aft is the large sunbed area with 4 cushions
  • Aft docking station
  • 3 x Paneled sunbed aft with new cushions & electric hatch with storage area
  • Stainless Steel grab rails
  • Cockpit speakers are linked to salon surround sound system with local control
  • Infinity speakers and 2 x JL Audio speakers
  • Aft deck hardtop to aft rail cover
Lazarette and Swim Platform
  • Storage garage for dinghy/jet ski and general stowage with electro-hydraulic transom platform
  • Electric winch system for dinghy/jet ski retrieval
  • Life raft storage
  • Access door to crew cabin
  • 220/240v shore support inlet
  • Storage lockers port and stbd
  • Twin cockpit gates with clear Lexan
  • Hot and cold transom shower, foldaway swimming ladder
  • Swim platform with a hydraulic power lift for easy water access for your jetski or tender (900lb capacity)

The helm is well designed for the captain with all gauges and instruments easily accessed and operated. The twin captain's chairs feature electronic operations for raising, lowering, and sliding. The side door gives the captain easy access to the side deck.


  • Electronic CAT engine controls
  • Digital CAT displays
  • Bennett trim tabs
  • Electronic CAT engine displays
  • EPLEX electronic touchscreen monitor for complete system control (replaced 2020)
  • 2 x Helm seats with electric controls leather treatment
  • AC/DC control systems panel
  • Door to side deck
  • VDO Instrument panel
  • VDO Fuel gauges
  • VDO rudder position indicator
  • Hydraulic Power Assisted steering
  • Bennett electrohydraulic trim tab controls with indicators
  • Anchor winch remote control
  • Chart area
  • 3 x Windscreen wipers with freshwater wash rinse
  • 3 x Bilge pump controls with visual ‘pump running’ indicators
  • Fuel contamination alarm system
  • Air Conditioning outlets
  • 12v outlet
  • Red night lighting and white overhead light
  • Side Deck watertight door
  • Princess leather-wrapped tilt steering wheel
Communication and Navigation Equipment
  • New Furuno GPS/Radar/Autopilot
  • 2 x Furuno Navnet Displays (new 2020)
  • Plastimo highspeed compass
  • Furuno speed and distance log
  • Furuno echo sounder with alarm
  • Furuno Navnet Color radar with scanner and GPS/chart plotter (twin displays)
  • VHF with DSC R/T
Deck Equipment
  • Teaklaid transom platform/cockpit deck/steps to side decks
  • Lewmar reversible hydraulic anchor winch with foredeck and helm controls
  • Self-stowing 50kg/110lb Delta anchor with 290 feet chain
  • 2 x Bow anchor lockers port and stbd
  • Anchor freshwater washdown
  • Stainless steel stemhead roller with automatic anchor launch and retrieve
  • 8 x Stainless steel bow, stern and spring cleats
  • Stainless steel fairlead and guard rails
  • 2 x Lewmar 24V electric stern line winches
  • Stainless steel coach roof handrails
  • Twin lockers for storage of fenders, ropes, and sunbed cushions forward
  • Foredeck hatch to VIP cabin
  • PVC rubbing band with stainless steel insert
  • Full set of iMcO navigation lights
  • Running light
  • Twin electric horns
  • Besenzoni electrohydraulic telescopic passerelle with remote control (4.4m)
  • Stern docking lights
  • Foredeck sunbed with electrically adjustable headboard
Electrical Equipment
  • US 50Hz power through
  • 24v DC/220v AC 50Hz electrical system
  • 2 x ASea power converters via 2 x 50 amps cords
  • 27kW Onan generator 24 volt (7,400 hours as of 11/2023)
  • 4 x Heavy duty batteries for engine starting
  • 6 x Heavy duty auxiliary batteries
  • Engine alternators charge both banks of batteries via automatic switch charging system
  • 2 x 80 amp battery chargers charge both banks of batteries via an automatic switch charging system
  • Battery paralleling system with remote control at helm position
  • Remote battery master switches with control switch at the main panel
  • Circuit breakers on all circuits.
  • 240v shore power with 2 x 80amp
  • Generator/shore support changeover system
  • Power points in salon, galley (double), owner’s stateroom, guest and crew cabins
  • Polarity check system
  • Electrohydraulic trim tabs with indicators
  • Power-assisted electro-hydraulic steering system
Fuel Systems
  • Twin fuel tanks with interconnection system giving 1,457 US gallons
  • Fuel fillers on both side decks
  • 2 x High-capacity dual separate fuel filters/water traps with changeover valves and visual contamination warning at console
  • Remote fuel shut-offs in helm locker
  • Fuel gauges on the helm console
Water Systems
  • Water tank totaling 240 US gallons
  • Plus 54 US gallon hot water heater
  • Automatic water pump with filter
  • Main circuit breaker at switch panel
  • Water level gauge
  • Deck filler
  • Electric quiet flush WC system with/106 US gallon/holding tank, gauge and electric overboard discharge with 2 x macerator backup system as well as dockside discharge system
Mechanical Equipment and Engine Room
  • Twin Caterpillar C32 Acerts diesel engines, 1825hp
  • Engine Hours: Port 2,040; Starboard 2,040 (11/2023)
  • US 50Hz power through

  • 24v DC/220v AC 50Hz electrical system

  • Engine room soundproofed
  • High volume air intakes
  • 2 x Engine room extractor fans with an electronic time delay
  • Engine exhaust silencers and water-cooled exhausts
  • Engine beds integrally molded with hull for strength and vibration absorption
  • Forward and aft engine room bulkheads integrally bonded
  • Engines flexibly mounted
  • Automatic fire extinguisher with remote override control
  • Automatic and manual bilge pumps
  • Propeller shafts w/ prop speed
  • Veem 5-bladed propellers w/ prop speed
  • Highspeed balanced rudders
  • Cathodic protection for stern gear
  • Stern gear, engines, and fuel tank fillers all electrically bonded
  • CAT single-lever electronic engine controls
  • Freshwater outlet point in the engine room
  • Dripless shaft seals
  • Dual Fuel water separator port and stbd engines
  • Side power Hydraulic Bow and stern thrusters
  • Wireless yacht controller
Tenders and Toys
  • Solar Cat is a 2021
  • Avon 2019 super sport 440 SS

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