Neff Yacht Sales / Used 54 foot NEPTUNUS 54 Express Motor Yacht - Lady Jules

NEPTUNUS 54 Express

Lady Jules

1999 • 54' (16.46 m) • Motor Yacht
United States

$227,000 USD

"Lady Jules" is a 1999 54 Express... She is a real head turner and her pride of ownership shows throughout! She offers the preferred higher horsepower twin Caterpillar 3406's rated at 800hp each. She is loaded with many recently updated and upgraded options!

  • All Caterpillar recommended service was done to both engines at 2400 hours
  • Aftercoolers were replaced in 2013
  • New Garmin Electronics were recently installed; Chart Plotter, Radar, Auto Pilot
  • New TV's recently installed in Salon and both Staterooms
  • New Carpet throughout the entire boat was just installed
  • All New Cockpit Cushions and Covers
  • New Foredeck Sun pad and Cover
  • Recent new Window Tinting
  • Recently replaced Air Compressor & Coil for Air Conditioning
  • Recently converted all 12VDC lighting to LED's
  • Recent all new Bilge Pumps
  • New Garbage Disposal

Please visit Full Specs for details


Vessel Information

Model: 54 Express
Model Year: 1999
Type: MotorBoat
Category: Motor Yacht
Sub Category: Express
Condition: Used

LOA: 54' (16.46 m)
Beam Feet: 15' (4.75 m)
Draft Feet: 0' (0.00 m)
Engine Info: 800 HP, Twin, Inboard, Diesel, Caterpillar
Staterooms: 2

Location: Branford, Connecticut United States
City: Branford
Country: United States


Navigation & Electronics

  • Garmin 7212 GPS Map
  • Garmin 2206 GPS Map
  • Garmin 7610xsv, Chart and Radar
  • Garmin data display
  • Raymarine ST60 multi function speed & depth display
  • Icom VHF w/DSC
  • Vetus Bow Thruster
  • (2) ACR RCL-100 Remote Search Lights
  • Mathers Electronic Engine Controls
  • Caterpillar Digital Engine Monitors
  • Analog Engine Monitors
  • Bennet Trim Tabs w/ indicators
  • Azimuth 1000 KVH Electronic Compass
  • Windlass
  • KVH Tracvision 6 DV3 Satellite TV


  • (2) Sub Zero Refrigerator/Freezer units under counter
  • 4-Burner AEG Glass Cooktop
  • (2) SS Sinks w/ Insink-Erator
  • Stemin Hot- hot water unit
  • Panasonic Dimension 4 Microwave Bake Broil Combination unit
  • Beautiful joinery with lots and lots of galley drawers and cabinets
  • Beautiful Granite like countertop


Entering the Salon from the cockpit you will pass through centerline stainless steel framed glass sliding doors. You will be wow'd by the large salon featuring an L-shaped leather settee, coffee table and entertainment center. Forward in the Salon to starboard is the Navigation center that features a very comfortable captain's chair and a mates settee long enough to fit a crew! Moving forward through the port side companionway you will step down a few steps, the Galley is to port and adjacent is a very large dining area with settee, table, and additional stools.

Master Stateroom is aft of the lower salon and features;

  • Walk around center Island Queen berth
  • Vanity with stool
  • Large cedar lined closets port and starboard (safe in port side closet)
  • Lots of Drawers and storage space
  • Private Head to starboard with shower stall
  • TV

Vip Stateroom is forward;

  • Walk around center Island Queen berth
  • Closets and drawers on port and starboard side with lots of storage space
  • En-suite head and separate shower stall (also has entrance from lower salon)
  • TV

Cockpit and Deck

  • Cockpit Ice Maker
  • Cockpit Electric Grill
  • Cockpit Sink
  • New Cockpit upholstery and covers
  • Swim Platform with ladder and Trick Davit System for a RIB
  • Cockpit Shower w/ hot & cold water
  • Large 8cf Freezer below deck w/ access to engine room
  • Foredeck Sun Pad with new cushion and cover
  • Windlass
  • Windshield and Window Covers
  • Retractable Power Sunroof, Windshield Vent and Side Windows
  • 50 amp shore power w/ retractable cord
  • Charles C Power ISO Transformer


  • Twin Caterpillar 3406's 800hp w/ 2996 hours
  • After Coolers were replaced in 2013 and then both engines received complete service by H.O. Penn (Caterpillar authorized field technicians) at 2400 hours.
  • Generator w/ sound shield

About Us

So you have made the decision to buy a yacht. Now it's time to make an even bigger decision and choose the right brokerage. Whether you are moving up in size, moving down in size or a first time boat buyer it is important to get the right support. Buying a vessel is a big decision, usually a $100,000 + decision. So having trust and confidence in your yacht broker is key.

Contact Us