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1990 Ocean Yachts 48 MOTOR YACHT

Mystic, United States


Clean, professionally maintained with over $40K in recent upgrades including Electronics, Fiberglass Salon Windows, Carpeting, Furniture, Batteries & Chargers, New Holding Tank & Hoses, etc... Standout features include Niad Stabilizers, Dinghy Hoist, Upper deck conversion to outside living space with removable tender cradle, lifelines, carpet & wicker furniture. Est. 600 hours on Detroit Diesels since overhaul. Plus all the expected equip including Generator, Air Conditioning, W & D. Dishwasher, Full Canvas Helm Enclosure, etc... 2014 Survey available upon request. 

Basic Boat Info

Price: $169,000
Make: Ocean Yachts
Year: 1990
Condition: Used
Category: Power
Construction: Fiberglass


Length: 48 ft
Length Overall: 48'6 ft
Beam: 16'4 ft
Min Draft: 4 ft
Displacement: 51,000 lb
Bridge Clearance: 15 ft
Double Berths: 3
Cabins Count: 3

Engines / Speed

Engines: 2
Engine #1 Specs:
  • Make: Detroit
  • Model: 6-71 TIB
  • Drive Type: Direct
  • Fuel: Diesel
  • Engine Power: 485hp
  • Type: Inboard
  • Propeller Type: 4 Blade, Bronze
  • Year: 1990
  • Engine Hours: 625
  • Engine Location: Port
Engine #2 Specs:
  • Make: Detroit
  • Model: 6-71 TIB
  • Drive Type: Direct
  • Fuel: Diesel
  • Engine Power: 485hp
  • Type: Inboard
  • Propeller Type: 4 Blade, Bronze
  • Year: 1990
  • Engine Hours: 625
  • Engine Location: Starboard
Total Engine Power: 970hp


Fuel Tanks: 2
Fuel Tank Capacity: 250 gal
Fuel Tank Material: Aluminum
Water Tanks: 2
Water Tank Capacity: 110 gal
Water Tank Material: Aluminum
Holding Tank Count: 1
Holding Tank Capacity: 80 gal
Holding Tank Material: Plastic


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


Jonathan Smith CPYB
Prestige Yacht Sales


Prestige Yacht Sales - Mystic Location
2 Washington Street
Mystic, Connecticut, US, 06355


Known as the largest motor yacht in its size range, the Ocean 48 Motor Yacht is somewhat unique in that it has three generous suites each with a queen-sized double bed, head with separate shower, climate controls and plenty of storage lockers. This one has been customized to add a large outdoor living space on thje upper deck (See separate description).

Between Bow & bridge there is seating for at least 10 and this boat has entertained groups of 15 - 20 guests for evening cruises

Owner Stateroom:

Located aft, the owner's stateroom is accessed by a spiral staircase leading down from from salon. Features include: Large queen-sized island berth, Vanity with drawers & stool, Cedar-lined hanging lockers, Full-length mirror, separate AC unit with climate controls, Ensuite head with tub & shower.

New carpeting in stateroom and stairway in 2016.

VIP Stateroom:

Located forward, the VIP stateroom includes a Large island berth, Vanity with drawers & stool, Full-length mirror, Overhead storage cabinets, Cedar-lined hanging lockers, Overhead recessed lighting, Air conditioning unit with separate climate controls, ensuite head with shower.

New carpeting in stateroom and stairway in 2016.

2nd VIP Stateroom:

Located midship, the 2nd VIP STateroom includes a Queen-sized berth,, Cedar-lined hanging lockers, Storage drawers. separate AC unit with climate controls, ensuite head with shower. 

Main Deck

The salon has just undergone a $20,000+ upgrade including new carpeting, new furniture and new 'Lookout' fiberglass-framed sliding windows to replace the original aluminum framed windows. More photos and video tour coming when boat is commissioned in spring.

Former ice-maker has been replaced with a glass-front refrigerator.

The Main Deck layout features a Galley and Helm that are open to the Salon.  A spiral staircase aft and to port leads down to the Master Stateroom. Dining table and chairs are forward of the staircase with sectional seating and cocktail tables aft and starboard. Moving forward in the Salon, to starboard is another staircase that leads up to the spacious Flybridge. Amidships and to port is the open Galley with Helm opposite just beyond the Flybridge stairs, with full instrumentation. Starboard is another staircase leading to the two VIP & Guest Staterooms below, with access to the stand-up Engine Room.

Doors port (Galley) and starboard (Helm) amidships lead to the side decks and to the foredeck. There is a small aft deck with a ladder leading to the swim platform for dock access and additional line handling.

Custom Upper Deck Outdoor Living Space and Tender Storage

This example has been recently customized to quickly turn the upper tender storage deck area into a generous outdoor living area:

- The tender's cradles have been made so they connect to the deck through recessed fittings with quick-connect pins. After launching the tender using the electric hoist, the cradles can be removed and stowed in a few minutes.

-  The Tender cradles have been relocated so the tender sits along the centerline and longitudinally with the yacht. This makes for better weight distribution to prevent any listing due to heavier outboard and also looks better.

- A series of removable stanchions with lifelines are inserted into recessed deck fittings to provide safety for guests on deck.

- A large outdoor carpet is rolled out across the deck.

- Wicker furniture is placed around deck.

- The conversion takes about 15 minutes and is well worth doing to add the outdoor living area when at dock or anchor for a while. 

- The Hard Bottom Inflatable shown in pics has been sold and is NOT included. 

Electric and Batteries

50 Amp 240 VAC System Includes:

AC Breaker Panel

Onan 12.5 kW Generator with 2250 hours, New Injectors  


20 Gallon Water Heater

Air conditioning

Dinghy Hoist

Washer & Dryer


Trash Compactor

Galley & Salon Refrigeration Units AC or DC

Galley Stove


2 50-Amp Shore Power Cables, P&S, on Glendinning Reels

12VDC System Includes:

DC Breaker Panel

Two Newer Battery Banks each with its own New Smart Chargers installed in 2015, Approx $9,000 upgrade. You can expect to get 18 - 20 hours of battery power under normal use while at anchor before charging with generator or shore power.  

Bank 1: Two Group 8D AGM High Capacity House Batteries with 50 amp Smart Charger set for AGM is the default House bank which may be switched to the Inverter. 

Bank 2: Six 6-Volt Lead Acid (Golf Cart) House Batteries with separate 60 amp smart Charger set for lead acid serves as the default inverter bank.

1 Group 27 Generator Start Battery

Truepower 2500 Watt Inverter - With a dedicated battery bank, this inverter will run many larger-draw AC items including the dinghy hoist, reducing need to fire up generator for some tasks.

12 VDC operates the typical marine systems including:

Navigation Lighting

Interior Lighting


Potable Water Pumps

Bilge Pumps

Electric Heads

Refrigeration Units


Trim Tabs 




$12,000 in new Garmin Electronics at upper helm:

New Garmin 6212 12" Multifunction Display with G2 Chart Cards

New Garmin GPS Module

New Garmin 4kw 24" High Definition Digital Radome

New Radome Mount on Freshly Painted Aluminium Radar Arch

New Garmin Depth & Temperature Sensor

It would be an easy job to connect another Garmin display to system at lower helm if you wanted. 

Other Electronics:

Robertson AP200DL Autopilot with controls at Upper & Lower Helms

Icom IC-M100 VHF at Upper Helm 

Icom Remote Mic in Salon

Standard Horizon VHF at Lower Helm

2 Datamarine Depth (Upper & Lower Helms)

2 Datamarine Speed (Upper & Lower Helms)

2 Ritchie Compass (Upper & Lower Helms)

32" Flatscreen TV in Salon, new in 2015

Flatscreen TV with built-DVD player in Owner Stateroom, new 2015

2 New VHF Antennas on Radar Arch

New LED Nav light on Radar Arch

New LED Arch Light

New LED Underwater Lights




Galley Equipment Includes:

Galley Maid Elec 3-Burner Stove with Oven

Magic Chef Stand Alone Refrigerator

Kenmore Dishwasher, replaced few years ago

Trash Compactor


Separate Glass-front Refrigerator in Salon replaced the original icemaker

Engine Notes

The Detroit 6-71 TIB 485 HP Diesels do not have hour meters and have been conservatively estimated at 625 hours since they were completely overhauled in 2007. The current owners purchased vessel soon after the overhaul and reported an estimated 450 hours on a 2014 survey with an additional 50 hours each in 2014 & 2015 and 30 hours per season since.

The current owner is a marine service professional and as such ensures engines and all mechanical systems receive proper routine service including annual oil samples which show everything has been consistently normal under his ten year stewardship of the yacht..

He only cruises the Detroits at 1700 RPM (70%), making a comfortable 12 kts (13.5 mph). This is notable for a couple reasons: The engine life of these turbo boosted Detroits can be more than doubled by keeping the turbo's boost at a modest level compared to many who cruise theirs at 2000 - 2200 RPM plus. The semi-displacement hull rides very easily & comfortably at 12 kts without any unwanted motions. It is the right way to run these boats and this knowledgeable owner gets it.

That said he also occasionally will open up the turbo Detroits to wide open, 2500 RPM, for about 30 seconds to makes sure they reach full RPM and temperatures are in the normal range just as a test of propulsions system's health. At wide open the boat can reach 17 knots (19 mph) depending on tankage & sea state.

An Oil Change Pump in engine compartment makes oil changes cleaner and easier for yourself or a mechanic.

Plumbing Features

- This boat has a total of 230 gallons of water storage through the standard 150 gallon water tank stored under the owner's berth aft and an added 80 gallon water tank under the VIP berth forward. Valves in the engine room control water feed from each of the tanks.

- A city-water connection feeds the ship when at dock. Furthermore, switching a valve in the engine room allows you to fill your water tanks through the city water connection rather than having to fill the tanks through the deck plate fills.

- The three Galley Maid Electric heads have been upgraded to be run off of sea water or the house fresh water selectable by valves. Flushing with fresh water helps keep odors from forming in heads, holding tank and most importantly, the hoses. That extra water storage capacity has its benefits.

- All head hoses, fittings and the holding tank were recently replaced at approx. $10,000.  



Safety, Deck and Handling Equipment

Ideal Electric Anchor Windlass

Anchor #1: 45 LB CQR with 250' of 3/8" chain

Anchor #2: 55 LB Danforth with 30' 3/8" chain and 200' of 5/8" three strand nylon rode

Electric Dinghy Hoist on Upper Deck

Removable Dinghy Cradles mounted longitudinally on ship's centerline with recessed mounts

Aluminum Radar Arch recently painted with two-part paint

Helm Bimini with Full canvas enclosure in very good condition - Bimini Top recently re-stiched and center panel replaced with .060 polycarbonate.

New Bow Seat (currently at upholstery shop being replaced) 

Fiberglass Swim Platform

4 Automatic/Electric Bilge Pumps

High Bilge Water Alarm operated by float switch 

ACR Remote Spotlight

6 Dock lines

6 Fenders

8 Type I Life Preservers

4 Type II Life Preservers

Type IV Throwable Life Ring

4 Type BC Dry Chemical Portable Fire Extinguishers

Engine Compartment Fire Extinguisher: FE-241, New 2006

Carbon Monoxide Detector

Discharge of Oil Placard

MARPOL Trash Placard 

Other Equipment

Kenmore Washer & Dryer

Niad Stabilizers

Glendinning Engine Synchronizer

Bennett Trim Tabs 

Some Yacht History

The current owner is a professional in the marine service industry. He and his wife have owned the vessel for about ten years, upgrading most electrical & mechanical systems as well as improving the living spaces with new carpeting and furniture, and customizing the upper deck into a large outdoor living area. They have not been live-aboards so showings and transition to a new owner should be fairly easy. 

The prior owners were an older couple who kept the yacht at Essex Island Marina in Essex, CT. They did not take the boat out of the slip much, using it mostly as a waterfront summer condo. They had the engine overhauls performed in 2007 not long before selling to the current owners. History prior to this is unknown.

The current owners have cruised to all the typical Southern New England ports a few times over the years and are selling to pursue other interests. 2016 cruises were to Nantucket and Newport and some more local jaunts. They will continue to properly maintain and use the yacht until sold including commissioning this spring, but their use is expected to be less than in prior seasons.    

Recent Survey

The current owners changed insurance providers in 2014 so commissioned a "Condition & Value Survey of the Vessel" by Johnson Marine Services, which is available upon request. 

There were only two survey recommendations, both 2nd priority items, which were both resolved by the owner:

Uncovered fuse holders below the inverter was replaced with a proper holder & fuses.

Tired drain hose running along port side of engine compartment was replaced with new.

The appraised value in 2014 was $180,000 with over $40,000 in upgrades and improvements since then including:

New Garmin Electronics Package

New Carpeting in Salon

New Furniture in Salon

Two New Battery Banks with Individual Smart Chargers

New Holding Tank, Fittings & Hoses

Old aluminum Salon windows replaced with new 'Lookout' Fiberglass windows  

Photos, Video and Showing Info

More photos and a video tour will be taken and uploaded to this listing soon after the yacht has been uncovered and commissioned this early spring. Currently all the upper deck furniture and other items are stowed for the winter in the main salon so the boat is not reflective of its true condition when everything is in its proper place. With shrink wrap the exterior is also not much to see right now.  We should start seeing covers coming off boats over the next few weeks. That said, we are activating this listing now for the experienced boaters who can see past a vessel's normal winterized condition to the well maintained and upgraded yacht this one is.

Owner financing not available, however we can refer you to some excellent marine financing specialists if needed. 

Private showings available to qualified buyers by appointment on Tuesdays - Saturdays. Listing broker must be present for all showings.

Dinghy in Pics no longer available

The dinghy and outboard have been sold and are not available.

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

Please email, text or call Jonathan Smith, CPYB at 860-514-3763 or for the fastest response to your questions or to set up a private viewing. 

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.