2003 Neptunus Flybridge Motor Yacht

This 56' Neptunus "Flybridge Model" offers more than any other similar size yacht with her three generous staterooms, two heads, a lower helm station, an on-deck galley and dining options forward of the galley or on the flybridge.The interior has the perfect blend of high gloss cherry joinery, padded crème Ultra Leather paneling, ultra suede fabrics with many relaxing areas and large cedar lined closets are throughout this yacht.The deck plan of the main deck, below deck and flybridge are unique only to Neptunus designs. The Neptunus Space planning is excellent and needs to be seen to be appreciated.Upon entering the aft deck, with built in seating, a hi-lo and table and port and starboard access to the side decks, the same deck level Salon is entered via a centerline door. There is seating to both port and starboard with the full galley two steps up on the port side. Forward of the galley is ample dinette seating to port with the lower helm to starboard. Just aft of the lower helm are the curved steps to the accommodations below. The Master is aft with an ensuite head. Forward to starboard is a twin lower berth guest cabin. All the way forward is the VIP. The shared guest head is to port opposite the guest cabin.She is turnkey and ready for overnight cruising with the following updates.Both CAT 3406 engines rebuilt 2026 with 50 hoursNew Garmin 8416 MFD, 6/2024New Garmin Radar, 6/2024New Garmin AIS 800, 6/2024New Tides Seals, port and starboard, 9/2024New Alternators, port and starboard, 9/2024New Engine Mounts, both engines, 9/2024Rear Main Seals Replaced, both engine, 9/2024New ZF 325 Transmissions, port and starboard, 9/2024New Turbos, port and starboard, 9/2025Hydraulic Steering Piston Rebuilt, 9/2024Hydraulic Lift Hoses Replaced / Pump rebuilt, 2/2025New Cutlass Bearings, 2/2025New Rudder sleeves, 2/2025Generator oil/fuel filters and impeller replaced, 4/2026New Aftercoolers, port and starboard, 7/2025New 2 drawer refrigerator in galley,10/2024New refrigerator – Galley, 10/2024New Ice Maker, 4/2026New flybridge refrigerator,11/2025New LG TV, 10/2024New Permateek flooring in cockpit and flybridge, 3/2025Front Pilot Windows Re-bedded, 3/2025Salon Windows Re-Sealed, 3/2025New 104lb Mantus Anchor and New Mantus Roller, 3/2025New Fusion 3 zone stereo, and new Scar Speakers, 4/2025New Hi-Low Cockpit Table, 4/2025New Discharge Hoses, 7/2025New 5 Blade Veem Props, 7/2025New FB Deck Pad, 8/2025New White Stamois and Black Mesh Window Screen, 8/2025New Blinds in Salon, 12/2025New SeaWater Pro 40 GPH water maker,1/2026New 600AH Renogy Lithium Batteries,1/2026New Victron MultiPlus 3000W Charger/Inverter, 1/2026New Victron Orion DC/DC Charger, 1/2026New Victron Cerbo, (remote monitoring) 1/2026New Toilet Boards/duckbills/macerators with Bluetooth controls, 4/2026New 11 Gallon Water Heater, 10/2024New Flybridge Windshield Panels, 9/26Above rub rail wax and polish 9/26

The Salon is entered via a curved “Trend” stainless steel sliding door with a sliding insect screen and lined silk drapery. The entire main deck is open with two levels of accommodation. To port is an L-shaped creme Ultraleather sofa with storage below the cushions. An oval cherry and burl wood coffee table lies in front of the settee.To starboard is a matching Ultraleather curved two-person settee with cherry arm rests with storage below the cushions. Just forward of the settee is a built-in LG 30” LG LED TV with a cherry countertop above. Above is a cabinet with Clarion AM/FM/CD/Sat radio.Also in the salon are the Neptunus signature bi-level cabin side windows each with new Duette shades (12/25) and an upholstered panel between. Additional equipment includes Clarion stereo speakers, a Clarion subwoofer, a Walvac central vacuum unit and outlet, digital Marine Air A/C controls. Seven halogen mini spots on a dimmer and rope lighting behind the upper valance provide lighting.

This open floor plan leads you forward and up two steps into the full galley. The galley’s design is U-shaped to port and includes the following features:Cherry plank flooringAvonite countertopsDouble stainless steel under mount sink Single lever faucet with removable sprayerSeparate stainless steel soap dispenserAEG four burner Ceran type cook topExhaust fanToshiba microwave oven concealed behind a cherry doorDometic under counter refrigerator (new 10/24)Built-in small freezer to starboard(2) Isotherm under counter stainless steel refrigerator drawers (new 10/24)InSinkErator disposal(10) Halogen mini spots (11) Cherry cabinet doors for storage spaceOne cherry drawerPortside windows with new mini blinds

One step up from the galley is the yacht’s dining area on the port side just ahead of and open to the galley.A curved four person settee faces aft but offers an excellent view out the large forward and side windows. A unique burl wood and cherry table folds in half for easy entry/exit. Also in this area is a skylight to the lower companionway, another Marine Air digital A/C control and two directional halogen mini spots over the table.The sole of this area is carpeted.

To starboard on the same level as the dinette is a complete lower helm with an Ultra Leather oversize helm bench with storage below. Five cherry cabinets below the Helm offer extra storage space and equipment access. Equipment at the lower helm includes:(2) CAT LCD engine monitorsSimrad AP20 autopilotSimrad 4” data screenWest Marine digital weather stationDino tilt wood steering wheelZF electronic controls with synchronizer (new 9/24)Bennett trim tab controls Fireboy Halon override controls(3) Windshield wiper/washer controls (arms removed)Air horn control(4) Bilge pump switches with (3) bilge pump counters & alarmGenerator on indicatorDefogger controls5" Ritchie Power Damp magnetic compassRed overhead navigation light12V outlet(2) Stereo speakersJust aft of the lower helm is a countertop with a top access cabinet and an additional storage cabinet facing the galley.

To the starboard side opposite the galley are seven curved carpeted steps, LED step lights, a bookshelf and an opening stainless steel porthole halfway down the stairs. The yacht's main electrical panel is near the top of the steps. For ease of access and ready viewing the door has been removed, but is stored aboard for re-installation as desired.At a landing at the bottom of the steps is a Whirlpool Thin twin heavy duty washer dryer in a cedar lined locker behind cherry doors.Continuing forward are carpeted steps going up, a skylight to the dining area above, equipment access below the sole, cherry handrails and LCD mini lights at the steps. 

At the bottom of the companionway is an arched cherry doorway that accesses the master cabin. A raised platform berth with two storage drawers and rope lighting below is positioned off the port aft corner maximizing the floor space of the cabin. Brass reading lamps flank the upholstered headboard that sits upon a mirrored bulkhead. To port is cabinetry forming a nightstand with a drawer below, a two door cabinet above and two opening stainless steel portholes with wool blinds above. Next forward is access to the ensuite head.To the starboard side of the berth is a nightstand with three drawers below and an adjacent vanity area with one additional drawer, between them is a cherry cabinet.Next forward is a large cedar lined closet with a light, hidden storage, a digital safe and a dressing mirror inside the door. Also in the locker are all the battery inverter/chargers.At the foot of the berth is a cabinet with a drawer and two doors below. Above is a custom TV cabinet with a 22" Westinghouse LCD TV built in facing the bed. Below is a Clarion AM/FM/CD player.Also in this cabin are Clarion stereo speakers, a CO detector and six overhead mini halogen lights with two dedicated as reading lights. The sole is carpeted.

Two steps up from the master is the private head with a marble tile sole, bow front vanity cabinet with an undermount sink on the Avonite countertop. Above are four mirrored front medicine cabinets. Below the medicine cabinets is an opening stainless steel porthole with Duette shades. The toilet is a Raritan Atlantis model. The stall shower has a tempered door, a light, handheld or wall mounted fixture, a light, a fiddled shelf and an exhaust fan.Plenty of mirrors and three halogen mini spots offer excellent lighting, the overhead is also mirrored. 

Forward through the center companionway and up three steps is the starboard guest cabin with twin lower berths. Between the berths is a three-drawer cherry nightstand. Beneath each berth is one large and two small drawers.The outboard berth has two opening stainless steel portholes with new mini blinds and five cherry cabinet doors above.At the foot of the outboard berth is a cedar lined hanging locker with an auto light. A 15” LCD TV and a Clarion AM/FM/CD stereo face the berths. Also in this cabin is a full size dressing mirror, two reading lights, digital A/C controls, two Clarion stereo speakers and rope accent lighting at the valance. The sole is carpeted. A hinged access panel gives great access to the back of the helm and associated electronics. 

Across the companionway from the starboard guest cabin is the guest head with two access doors, one from the center line companionway, the other from the VIP. It features a marble tile sole, bow front vanity cabinet with an undermount sink on the Avonite countertop. Above there are three mirror-front medicine cabinets. Below the medicine cabinets is an opening stainless steel porthole with Duette shades. The toilet is a Raritan Atlantis model. The stall shower has a tempered glass door, handheld or wall mounted fixture, a light, a soap dispenser and an exhaust fan. Plenty of mirrors including the overhead and three halogen mini spots offer excellent lighting.

All the way forward is the spacious VIP cabin with a centerline queen size berth with two drawers and rope lighting beneath the berth. The forward bulkhead is mirrored with an upholstered headboard affixed to the mirror. To both port and starboard are cherry countertops to serve as nightstands. Also to port and starboard are seven stbd. and six port cherry cabinet doors. Below is one opening stainless steel porthole on both the port and starboard sides with rope accent lights behind the valance.Aft to port is the cabin's entrance to the guest head. To starboard is a cedar hanging locker with an auto light. The cherry vanity has one drawer and a stool below the countertop. Above is a cabinet with a 22” Vizio LED TV above. Below the sole is access to the bow thruster. Also in this cabin are five halogen mini spots, two halogen reading lights, rope accent lighting, a Clarion AM/FM/CD player, a CO detector, two stereo speakers with volume control, a central vac outlet and an opening round Bomar hatch above for ventilation or escape. The sole is carpeted.

Fiberglass non-skid decksNew 104lb. galvanized Mantus plow style anchor with150’ chain rodeLewmar anchor windlass with up & down foot switchesNew Mantus Bow roller & stainless steel anchor chuteChain locker hinged access hatchFreshwater anchor wash down spigot & hoseOversize welded stainless steel bow rails with stainless steel lifeline(3) Windshield wipers with washersForward hailer hornInternational navigation lightsWindshield cover – white Stamoid (new 8/25)Spare black Textilene windshield cover (new 8/25)Side deck grab railsPort & starboard opening side gate in bow rail with ladder insertsDual spring line cleats port & starboardStainless burgee staffRound Bomar deck hatch to VIP   Stainless steel vertical boarding ladder mounts port & starboard, stows in lazaretteDark tinted frameless cabin side windowsAir horns(2) Custom stainless steel foredeck handrailsWhite vinyl sun cushions with blue piping & black Stamoid coverLucite drink holders at bow cushionITT Jabsco searchlightFront windshield re-bedded (3/23)Salon side windows resealed (3/25)

(3) Permateek synthetic teak steps port & starboard down to swim platform (new 3/25)(2) Hinged stainless steel gates at platform stairs4-person aft bench seat with white and tan vinyl cushions & Stamoid coverTeak hi-lo teak table with cover (new 4/25)Permateek synthetic teak sole resealed 2026Removable hatch to service engines (new 3/25)(7) Permateek synthetic teak steps to flybridge with stainless steel handrail (new 3/25)LED bullet lights at each step(2) Permateek synthetic teak steps to side deck, port & starboard with LED step lights (new 3/25)Port & starboard coaming doors to access stern cleats, each with (2) stainless steel fair leadsPAR pressure regulated water inlet in portside lockerGlendinning cable master controls in starboard side lockerTV/telephone inlet in starboard side lockerHydraulic platform controls in starboard side lockerSSI hot & cold shower enclosure to starboard(2) Additional stainless steel stern cleats at transom750 lb. hydraulic fiberglass swim platform for tender storage(3) Overhead stainless steel trimmed halogen lightsLarge storage locker below hinged top sink cabinet to starboardStereo speakers with separate tweetersFusion stereo remote control on aft deck for FB stereo (1/25)Icemaker (new 4/26), installed under FB stairsPop-up center line cleat at fixed transom area

2024 AB Mares 12’ RIB with Hypalon tubes30hp Honda outboardConsole steeringDouble bench seat with storage belowDouble seat in front of console with storage belowBow seat with storage belowBilge ponyElectric startBattery shut off switch7’ Garmin plotter depthFull cover, black SunbrellaTender chocks

Permateek synthetic teak decks (new 3/25)Helm to starboardUnique sun lounge area with new cushions (8/25) forward of helm with complete Stamoid coverTinted Venturi windscreen Flybridge bar with stainless steel sink, Isotherm refrigerator (new 11/25) & Miele electric BBQ grill J-Shaped flybridge seating with removable cushions & storage belowCocktail table - varnishedFiberglass radar archLED low level deck lightingStorage locker at Helm(2) Skar stereo speakers (new 4/25)(2) Helm chairs with Stamoid coversStorage under helm seatsHelm cover - SunbrellaStamoid wheel coverStorage cabinet under barTeak footrest at helmFRP hardtop(4) place rod storage overhead(2) speakers with tweeters overhead(4) stainless overhead light fixtures

The flybridge helm features the following equipment:CAT color engine monitor (new 2019)16" Garmin touch screen GPS/plotter model 8416 (new 6/24)Simrad AP20 autopilot remote headRaymarine ST 60 digital depth finderIcom 506 VHF with remote speakerBennett trim tab controlsZF electronic engine controls with synchronizer (new 4/24)Vetus bow thruster controlsITT Jabsco searchlight controls(2) Wema fuel gaugesRitchie 5" PowerDamp Plus magnetic compass"Dino" wood tilt steering wheelEngine start/stop key switches4 Station high water alarm Windlass remote controls12V outletFireboy engine shut down override controlsFusion AM/FM/CD 3 zone stereo Sirius ready with Sirius antenna (new 4/25)

Glomex Terrestrial HD TV antenna on arch2) VHF antennasGarmin 4’ open array antenna (new 6/24)Hailer hornNav light mastStarlink antennae (new 2026)

The Lazarette and the engine room are reached via lifting up the center section of the aft deck seating. A five teak tread stainless steel locker heads to the lazarette with the engine room just forward behind a hinged door.Lazarette equipment includes:Timer for waste discharge pumpAC fluorescent lightingDC incandescent lightingSpare fenders & linesFour teak step stainless steel boarding/swim ladderRudder gear under covered boxGFCI outletAccess panels to bilge belowHydraulic power pack for swim platform, pump rebuilt (2/25)New hoses for hydraulic swim platform (2/23)Hynautic steering ram rebuilt (2/24)New rudder bearings (2/25)Lazarette sole repainted (10/26)

Both CAT 3406 engines rebuilt Fall 2026(2) Racor 75/1000 HX fuel filters for each engine with vacuum gauges LG 1500 Algae X magnetic fuel conditioner(2) ZF V-Drive transmissions (new 9/24) replaced twin disc modelsRear main seals replaced on both engines (9/24)"Strong Seal" dripless shaft seals with mounted sparesNew Turbos, both engines (9/25)2 ½" stainless steel shaftsNew cutlass bearings (2/25)(2) new after coolers on main engines (7/25)Dual actuator Bennett trim tabsNew 5-blade Veem propellers (7/25)(2) Spare props10 HP Vetus bow thrusterReverso 5 Point oil change system for mains & generator & transmissionDometic variable speed 48,000 BTU chiller (new 2019)Rheem 20-gallon hot water heaterAirsep crankcase ventilation systemWater tank electric gaugeWaste tank electric gauge(2) Coolant recovery bottles for main enginesCoolant recovery bottle for generatorEngine driven Teleflex Sea Star power steering systemRacor 500 fuel filter for generatorGroco 3" main engine intake strainers with ball valves AC fluorescent lightingGrundfos X 110V fresh water pumpWellSaver expansion tank for water systemShaft brushes for bondingDoor between engine room & lazarette with window57 lb. Fireboy Halon fire controls systemNew Sea Water Pro watermaker 49 gph (new 1/26)New waste system discharge hoses (7/25)Engine room insulation behind perforated aluminum panels(2) 240V engine room blowers(3) Fiberglass mufflersSanigard holding tank vent filter(2) 413 Gallon fuel tanks with site gaugesHard coat wrapped exhaust risers(3) Rule 3700 bilge pumps

17 kW Onan Generator in sound shield, oil, filters and impellers (new 4/26)(2) 4D Gel Cell12V batteries for 24V engine starting, thruster & windlass(2) Renogy 300 all lithium 12V batteries for house service (new 1/26)(1) 12 volt generator start battery (1/26)220V 50 amp Glendinning cable master with 75' cord in starboard cleat lockerCharles Charger 24V 5000 series 30 amp battery charger for starting batteriesVictron Energy MultiPlus-II 12V 3000 watt 120 amp charger/inverter 9New 1/25)Victron Energy OrionXs 12V 50amp charger (new 1/25)Victron Energy inverter remote control at main panel (new 1/25)Rex manufacturing 15 kVA isolation transformerLED DC volt meterLED AC volt meterLED DC amp meterLED AC amp meterCable TV/telephone inlets in starboard cleat lockerNeptunus DC panel with 42 breaker protected circuits with indicator lightsNeptunus 110V panel with 20 breaker protected circuits with indicator lightsNeptunus 220V panel with 8 double pole breaker protected circuits with indicator lights(3) centralized GFCI breakers in electrical lockerNewmar GI-50 galvanic isolatorsFully bonded for electrolysis protection(2) Battery shut off switchesPort engine alternator is 24V 60 amp output (new 9/24)Starboard engine alternator is 12V 105 amp output (new 9/24)Centrally located GFCI outlets for ease of resettingBattery switch in VIP to cut off power to bow thrusterHaving the gel batteries located out of the heat the of the engine room, they typically last 5 – 6 years before replacement.

CAY LOU is a very nice example of the 56’ Neptunus Motor Yacht line. Built in Canada she is comprised of all North American parts that are easy to service and readily available.Having more updates and updated equipment than many other boats of her age, she is ready to go!Her high gloss cherry interior presents very we. Three staterooms, two heads, a lower station and an open galley arrangement make her a favorite with the American market Fresh engine rebuilds (Fall 2026) by Smith & Wick Marine Diesel, Jupiter, FL.Just compounded and waxed from the rub rail up, shows great. See notes on recent upgrades… It’s turnkey and ready to cruise now! Impressive! NOTE:Note: Actual LOA is 58’