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1985 Kong & Halvorsen Cockpit Motor Yacht

San Pedro, United States


A high quality raised deck cockpit motor yacht built in the Kong and Halvorsen yard in Hong Kong, "The Aunt Mary" is a rare model with a six foot cockpit extension, added in an Oregon yard after build and import. The three double staterooms all have private vacuflush heads with shower, and the separate stairways to the master stateroom aft and to the two staterooms forward provide added privacy for owners and guests. There is a spacious sundeck and a fly bridge with extended hard top plus another lounging area on the bow deck. 

This vessel came equipped with twin Detroit 6V-92 Turbo Johnson and Tower diesels. The port engine was replaced with a rebuilt sister engine which has been installed but is not hooked up. The working engine has been run on a regular basis, and the boat is also equipped with bow and stern hydraulic thrusters, and Naiad stabilizers. 

Priced with an eye to the engine completion work required, this vessel is offered by her motivated seller, and all offers will be considered. Call now for your private appointment to view.

Price Reduced to $99,500 May 2022

Basic Boat Info

Boat Name: The Aunt Mary
Make: Kong & Halvorsen
Model: Cockpit Motor Yacht
Year: 1985
Condition: Used
Category: Power
Construction: Fiberglass


Length: 59 ft
Length Overall: 63 ft
Length Of Deck: 59 ft
Beam: 18'6 ft
Max Draft: 5'6 ft
Displacement: 91,000 lb
Double Berths: 3

Engines / Speed

Engines: 2
Engine #1 Specs:
  • Make: Detroit
  • Model: 6V-92 Turbo Johnson & Tower
  • Drive Type: Direct
  • Fuel: Diesel
  • Engine Power: 450hp
  • Type: Inboard
  • Propeller Type: 4 Blade, Bronze
  • Engine Hours: 2470
  • Engine Location: Starboard
Engine #2 Specs:
  • Make: Detroit
  • Model: 6V-92 See Descriptions
  • Drive Type: Direct
  • Fuel: Diesel
  • Engine Power: 450hp
  • Type: Inboard
  • Propeller Type: 4 Blade, Bronze
  • Engine Location: Port
Total Engine Power: 900hp
Cruising Speed: 8 kn


Fuel Tanks: 1
Fuel Tank Capacity: 230 gal
Water Tanks: 1
Water Tank Capacity: 200 gal
Holding Tank Count: 2
Holding Tank Capacity: 40 gal


Heads Count: 3
Drive Type: Direct
Windlass Type: Electric
Boat Class: Motor Yachts


Helen Kaz
Please contact listing broker Helen Kaz for more information and to arrange your personal showing 310-254-4081
The Shoreline Yacht Group


The Shoreline Yacht Group
Cabrillo Marina 210 Whaler's Walk, Suite 123
San Pedro, California, US, 90731


Entering via the cockpit aft, a few steps take us up to the fully enclosed sun deck, a welcoming area with upholstered seating and table with chairs overlooking the West Channel. From the sun deck a ladder leads to the upper bridge deck and double varnished teak doors provide direct access to the salon - tastefully furnished with settees, coffee table and entertainment center - a gorgeous U-shaped galley that includes a full sized double refrigerator/freezer/icemaker and washer/dryer combo - and the lower helm.Just past the entry to the salon, a spiral staircase to port leads down to the master stateroom and ensuite head with separate shower. Returning to the salon and moving forward, beside the lower helm to port is a staircase leading down to the two forward ensuite staterooms and the engine room. 

Doors port and starboard level with the lower helm open onto teak walkaround decks under Europa styling, with access to the bridge deck from the sundeck and internally via a ladder and hatchway at the starboard side of the lower helm. The bridge is enclosed at the helm with ample settee seating plus additional seats and loungers at the aft of the bridge. There is  storage for a dinghy here (the row boat pictured is included) and a crane to lift and deploy.


  • Side by side refrigerator w/icemaker
  • Microwave
  • Electric stove top and oven
  • Dishwasher
  • Hot and cold pressure water
  • Stainless steel sink
  • Washer/dryer combo
  • Large counter top 
  • Good storage
  • Westerbeke 15KW genset in sound box 2850 hours
  • 10 6v battery house bank
  • 2 4D engine batteries
  • Pro Marine charger
  • Pro Marine 2500 w inverter
  • Cruising Equipment battery condition monitor
  • Magnum battery meter
  • Comnav 2001 Autpilot
  • Furuno radar
  • Furuno FCV581 Sounder/Fish finder
  • Icom ICM 80 VHF
  • Standard Horizon Matrix GX3000S
  • Glacier repeater screen
  • Weather monitor
  • Data Marine depth sounder
  • Data mMarine knot/speed log
  • Danforth Constellation compass


  • Comnav remote autopilot control
  • KVH Azimuth 1000 electric compass
  • Garmin GPS Map 540S
  • Hummingbird Dimension 3 Sonar
  • Glacier repeater screen
  • Standard Horizon Matrix AIS GX2100 VHF
  • Loud hailer
  • Data Marine knot log
  • Data Marine  depth sounder
  • Jensen stereo
  • Maxwell remote windlass control

At the time of purchase in 2018 there were two matching Detroit 6V-92 Turbo Johnson & Tower 450hp diesel engines. The port engine seized and was removed then replaced by a rebuilt Detroit 6V-92 matching engine that is installed in the engine room but not hooked up. All parts to complete the installation to match the original are currently either aboard the vessel or in a nearby storage unit.

The original (starboard) engine has been run regularly, and the bow and stern thrusters are represented as being functional.

Deck and Additional
  • Niad stablilizers
  • Bow and stern hydraulic thrusters
  • Hydraulic steering
  • Air conditioning (4 units) status not known
  • Hurr Cane diesel heating system (nneds injectors)
  • Watermaker
  • Vertical Nisson windlass with remote
  • Bruce style anchor with 420' 3/8" chain
  • Teak bow pulpit with SS anchor roller
  • Electric/manual dinghy crane 
  • Cockpit transom door
  • Storage below cockpit deck
  • Fly bridge seating 
  • Fly bridge refrigerator

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Additional Contact Information

 Contact Listing Broker Helen Kaz for more information and to arrange your personal viewing 310-254-4081

Disclaimer This calculator is intended solely for general informational purposes, and to provide a rough estimate based on the information you provide. You should not base your decision on this estimate alone.