1989 Irwin 43 Mk III for Sale – 45 ft – Stuart, FL, United States

1989 Irwin 43 MK II

Motivated Seller...Taking Reasonable Offers

The Irwin 43 Mk III Center Cockpit Sloop features one of the most practical and well-designed layouts among cruising yachts. Its split-level floor plan creates a sense of spaciousness typically associated with much larger vessels over 50 feet.

Upon descending the companionway, you enter a generous salon flanked by comfortable settees on both the port and starboard sides. Above the settees are four double-door cabinets that provide ample storage.

To starboard and toward the rear, you'll discover a fully equipped kitchen that feels like home, complete with a custom spice rack and a large refrigerator and freezer. It includes all the essential appliances, such as a microwave and a three-burner propane stove with an oven.

On the port side, toward the back, is a convenient aft-facing navigation station with an electrical panel. Additionally, moving further aft leads to a spacious chart table or desk area, ideal for a workspace on long journeys.

As you move forward, the boat features a spacious V-berth with netted storage at the tip. On the port side, there's a private en-suite head, complete with a standalone shower stall.

At the very rear of the boat lies an exceptional master stateroom—a rarity in a 43-foot sailboat. This generous centerline island queen bed offers plentiful storage and drawers at every turn. There's also a forward-facing vanity with a pull-out stool and mirror, adding a touch of luxury for anyone on board. The en-suite head to starboard boasts a thoughtfully tiled standalone shower stall, enhancing the at-home feel.

Overall, the boat is filled with light and air, being one of the pioneering deck saloon models. With seven fixed glass windows, fourteen opening portholes, and six opening deck hatches, it ensures a bright and refreshing atmosphere throughout.

Interior:

• Flat screen TV with HDMI
• Sm inverter for TV
• Stereo with speakers throughout
• Hanging locker (3)
• All cushions have been recovered
• 12v Fans throughout

Galley:

• Stainless steel double bowl sink
• Gimbaled three burner stove and over - supplied by two 10# tanks
• Six gallon hot water heater (either 110v or engine heat exchanger)
• Liquor locker
• Microwave oven Sharp Carousel
• Custom spice rack
• Large Adler-Barbour reach in fridge and freezer Isotherm 2501 (new 2026)
• 110v Norcold mini fridge in the salon at the drinks bar
• 12v Fridge/freezer for extra cold storage100
• LP gas shut-off solenoid

Staterooms:

• Forward Cabin: V-Berth with insert cushion, Hanging locker, drawer storage, Air conditioner and controls, Shelf storage
• Aft Cabin: Center mounted queen bed, mattress on Froli system, Hanging locker, Drawer and cabinet storage, Air Conditioner and controls, Stereo speakers
• Aft head is Raritan Sea Era electric flush with holding tank and mascerator, separate shower stall with hand held sprayer
• Forward Head is Nature’s Head composting toilet, Separate shower stall with hand held sprayer

Deck:

• Maxwell Nilsson electric windlass - controlled at helm and foredeck
• Rocna 73# primary anchor - 160' all chain rode 5/16 chain
• Bruce 44# secondary anchor - 20' chain and 250' 3/4'' nylon rode
• Delta 35# day anchor - 20' chain and 250' 3/4'' nylon rode
• All stainless lifelines and gate hardware
• Anchor wash down at bow
• Kato dinghy davits with larger 6-in-1 blocks for easy retrieval of dinghy
• Outboard motor hoist with rail mounted engine bracket
• Integrated swim platform - folds into stern flush w/swim ladder
• Full assortment of USCG safety equipment
• Docking tools - lines, fenders, boat hooks, etc. winch handles
• Starlink antennae mounted aft
• B & G Halo 20+ radar
• BBQ Grill mounted at rail
• (2) Deep lazarettes (aft)
• Fuel storage cans (deck storage 3 diesel, 1 gas)
• 6-Gallon Dinghy gas tank can be stored in forward dinghy seat compartment
• Paddleboard mount (rail mounted)
• Moveable boarding step (mount either side, swings out of the way when sailing)
• Fishing rod holders rail mounted and fish cleaning table (folding)

Cockpit:

• Full cockpit enclosure with new Strataglass windows that roll up, with screens
• Sunbrella canvas covers for cockpit storage bins, helm and winches
• Full array of cockpit cushions
• Two sport-a-seat reclining cushioned seats - portable
• Helm chair on swivel mounted at wheel - high visibility for steering
• Fold out starboard cockpit table for dining and drinks
• All electronics mounted at helm along with Standard Horizon RAM Mic
• Sea Dek floor and seats
• (5) Self-tailing winches in cockpit

Electronics:

Helm Mounted

B & G Zeus 3S 12” Chartplotter, Bluetooth to Starlink (2024) displays: Navionics, Aquamaps, C-Maps, radar, speed, depth, forward depth, water temp, wind speed/direction, AIS info.

• B & G Halo 20+ radar displayed on chartplotter (2025)
• Forward scan depth and water temperature displayed on chartplotter
• B & G wind speed and direction, Depth
• Raymarine Autohelm ST7002 ram auto pilot with hand-held remote
• B&G wind (direction and speed), boat speed and depth
• Ritchie compass
• Standard Horizon RAM Mic (2025)
• AIS: Transmit and Receive (with on/off switch)
• USB charging ports on pedestal
• Anchor windlass control
• Leather covered helm wheel

Navigation Station Mounted

• Standard Horizon VHF with DSC (2025)
• AIS
• Standard Horizon HX890 hand-held VHS radio with MMSI and GPS DSC in charger
• ACR EPIRB
• Garmin 546 GPS (old back-up)
• USB charging ports
• NUVAIR scuba tank compressor (can be removed) 110V hard wired- generator needed to run

Electrical:

s/v "Frabjous Day" is set up for complete self sufficiency from the dock for long periods of time. She has a 110v system when at the dock supplied by two 30amp shorepower connections with 50' power cords.

There is a low hours Kohler 8kw genset for power and A/C when underway or at anchor.

Boat has 600 Amp Hr Lithium house batteries as well as separate start battery for engine (group27) and generator (group24)

• 12v LED Cabin lights and 110v outlets in all cabins
• 100 amp Battery charger Victron
• 90 amp Hi-Output Balmar alternator
• 400 watt Renogy solar panels with tilting mount on dinghy davits
• Kohler 8kw generator - resurfaced and painted white in 2013
• Victron inverter/charger with monitors
• Air-X wind generator
• All Bluetooth Victron shunts, DC/DC controllers, solar controller
• Charging is viewable by Bluetooth (phone/computer)
• Aft deck lights (blue)
• LED Spreader mounted deck lights (combo spot and flood) very bright
• AIS: Transmit and Receive
• Starlink satellite
• Stereo with speakers throughout including in cockpit
• Flat Screen TV
• Raritan electric head with holding tank (aft head) and mascerator
• Natures Head composting toilet (Fwd head)
• Hot water tank heats 110V or by engine

Mechanical:

• Two 12k BTU MarineAir A/C units - both fore and aft
• Engine driven hot air heating system
• Bilge pumps (3 automatic, 1 manual)
• Halon system in engine compartment: Kidde Fyre Watch 85
• Most hoses and fittings (plumbing, sanitation and drains) below waterline replaced
• All fuel systems, hoses, fittings removed in 2013 and replaced with a new sophisticated BOSS FC60 Diesel filtration system with dual Racor filter setup. This doubles as a fuel polisher and back up fuel pump. As well as water contamination detection and fuel pressure indicator - all with alarms at helm.
• Installed a 6'' access port on top of the fuel tank
• Replaced flexible shaft log hose and repacked gland in 2025
• Line cutter on shaft with 3-Blade PYI max-prop