MJM – 40z Downeast

Massachusetts, United States

Corsair is an exceptional 40z!

This most heralded MJM model has been maintained and upgraded to the very highest standards. She is in immaculate condition with the owner showing extreme detail in every way –  mechanically, cosmetically and in her options and upgrades. This 40z has wintered indoors and been tended to by the Marblehead Trading Co and Boston Boatworks. Corsair is absolutely turn-key ready for the 2024 season. Some of her many key upgrades and options include:

– New port and starboard Engine Long Blocks – (engines rebuilt @ McDonnell Marine Service 2023)

– Volvo HP IPS 500 2x370hp Pod Drives (Joystick control) 

– 1200 hour service P&S engines (2023) 

– New Northern Lights 6kw Generator (2022)

– New AB 9AL Tender

– New Nautley Dinghy Davits (2022)

– Powered Opening windshields (2017)

– Sliding glass side windows (2021)

– Re-painted topsides (2020)

*See Upgrade Section for complete list, and more photos to come!


Manufacturers Description 

The primary design goal for the 40z was to create a 40 foot powerboat that would handle like a
30-footer at idle speeds in tricky docking situations. The Volvo-Penta IPS or joystick control
technology makes this goal a reality. The IPS system works with twin pod drives under the hull.
When conventional twin-engine controls are in neutral, a single joystick takes over with fingertip
control. There are no thrusters. Through a unique computer program, each drive unit is
independently operated in terms of direction, rpm and forward-reverse gear. This system works
far more intuitively than conventional twin shaft drives or joystick/thruster operated jet drives.

Unique Features
-Side-opening cockpit (P&S) overcome a common problem, getting aboard or getting off when
  handling docklines.
– Single-level seating for as many as 15 at cocktail time or for a family picnic
– Sliding glass side windows and fully-opening powered windshields to regulate airflow in the
  pilothouse to suit conditions.
– Large (60×78) island berth and separate shower in owner stateroom.
– A convertible guest cabin, with dinette optional lowering table.
– 40z can be trucked overland without penalty. Width doesn’t exceed 12 feet and height on a
  trailer is less than 13.5 feet.

Basic Boat Info

Boat Hull ID
Has Hull ID


44 ft
Length Overall
44 ft
Waterline Length
37 ft
12 ft
Max Draft
3.25 ft
Cabins Count

Engines / Speed

Engine #1 Specs:
  • Make : Volvo Penta
  • Model : IPS 500
  • Fuel : Diesel
  • Engine Power : 370 hp
  • Type : Inboard
Engine #2 Specs:
  • Make : Volvo Penta
  • Model : IPS 500
  • Fuel : Diesel
  • Engine Power : 370 hp
  • Type : Inboard
Total Engine Power
740 hp


Fuel Tanks
Fuel Tank Capacity
175 gal
Water Tanks
Water Tank Capacity
110 gal
Holding Tank Count
Holding Tank Capacity
30 gal


Heads Count
Boat Class
Downeast, Express Cruiser

Additional Info

Steering System
Joystick Control

Forepeak Cabin

• Fixed 78"x 60" island double berth in quilted Ultra-Leather memory foam mattress.
• 4 storage drawers and large below-berth storage compartment
• Storage shelves over berth (P&S) also serve as handholds when rising from berth
• Framed cherry wood forward bulkhead with 2 recessed book cases and double access
  doors to the large forepeak anchor locker.
• Combination bureau/entertainment center with cabinet, drawer & shoe locker, Corian counter and upper storage shelf.
• Hanging locker to port with storage over shelf
• Private access to head and shower
• 3 Stainless double hooks for clothing
• Dressing mirror on forward face of entry door


• The portside combination head/shower is accessible from either the forward
  stateroom or the main salon
• Corian counter with polished stainless oval sink. The sink has a mixer valve spigot
  and a pullout flexible hose with soft-spray to use as a second shower accessible from
  the main salon.
• Paneled cherry storage locker outboard with sliding doors and towel storage shelf
• Full length mirror inside door
• Locker under sink with stainless TP holder
• Towel rings and hooks
• Vent hatch and port light.
• Floor drain and gray water overboard system

Main Salon

• Spacious dinette table lowers with electronic control to form a 40"-44" wide, 78"
  long berth. Heavy opaque linen curtain anchors to ceiling to form a private double
  cabin with vertical zipper entry. 5" Ultraleather covered memory foam insert is stored
  in a vinyl bag.
• 2 large opening ports with screens, 2 skylight hatches and 2 cabin portlights to
  maximize ventilation, sense of space and light.
• The companionway is designed to function like a normal stairway with stainless grab
  rails and safe, sanded teak companionway with 2 steps down. Shoe locker and/or
  tool storage under steps.
• 6'4" of standing headroom on centerline
• Clear Awlgrip gloss-finished teak & holly cabin sole with storage compartment for
  large plastic bins.
• Off-white Nevamar HPL paneling with cherry trim. Foam backed vinyl headliner with
  satin-varnished cherry ceiling battens.
• Access door to head with integral shower.


• Corian counter top with framed and paneled cabintry with push-button hardware.
• Recessed polished stainless steel sink with removable Corian cover and stainless
  combination faucet.
• 3 Flatware & utensil drawers with Rubbermade organizer
• Upgraded Indel two-drawer 12v refrigerator - New 2017
• Dry goods cabinet with sliding doors and intermediate shelf running the full length of
  the galley.
• Freezer compartment outboard of the sink in lieu of storage locker
• Under counter storage locker for large pots/pans and cleaning supplies.
• Flip lid access panel to large Rubbermade trash bin.
• Overhead safety handrail and towel drying bar.
• Ceramic 2-burner electric stove with pop-up retainers


•Raymarine E-127 HybridTouch Chartplotter at the helm station
•Raymarine E-95 Chartplotter with separate GPS antenna at Nav Station
•Raymarine I70 Depth Display
•Raymarine P70 Autopilot
•HD Digital Radar Dome
•Icom IC-M504A VHF/Hailer
•Raymarine AIS650 Transceiver
•Raymarine SR150 SiriusSXM Weather & Satellite Radio Receiver
•Glomex AVIOR VT 300 DVB-T2 Full HD TV antenna - New 2018
•WAVE WiFi Rogue Dual-Band - New 2018
•Fusion UD650 Marine Entertainment System w/built-in Unidock, Bluetooth, and Fusion-LInk, with 2 Bose Cubes & 6 Clarion speakers - New 2018


• Northern Lights 6KW Generator - New 2022
• Marineair 16,000 BTU air conditioning system servicing both the pilothouse and
• Wallas thermostat controlled diesel heater with adjustable louvered vents to the
  pilothouse, main saloon, head and forward cabin
• Custom backlit electrical panel with 25-12v DC breakers and 12-110v AC breakers,
  stainless breaker guards and digital DC and AC monitors
• 110v AC system with Mastervolt inverter/charger
• Shore power system with 2-50' white Marinco cords
• 6 stainless GFCI duplex outlets
• Volvo-Penta standard 125 amp alternators
• Blue Seas battery combiners
• Galvanic isolator
• LED lighting throughout----4 Cabin reading lights, 4 Over head lights in the galley, 2
  in the head, 2 in the shower, 4 in the saloon, 4 in the forepeak, 2 at the piloting
  console and 4 in the pilothouse on dimmer switches
• 3 courtesy lights in the cockpit and head
• Engine compartment lights
• 700-ampere hour absorbed glass-mat battery capacity with 2-Group 8D 245 AH
  house and 3-Group 31 105 AH engine and generator batteries
• LED navigation and anchoring lights
• Bonded electrical system and underwater fittings
• Field serviceable electrical system with bundled/numbered wires with Deutsch O-ring
  waterproof connectors.


• Pressure hot/cold water with Johnson Aqua Jet Duo variable-speed water pressure
• 13-gallon stainless steel hot water heater
• 100-gallon polyethylene fresh water tank
• Dockside water inlet with check-valve pressure regulator
• General Ecology Seagull IV purification system
• Scanvik hot/cold shower on swim platform
• High pressure fresh water washdown in port cockpit locker with 50' of hose & nozzle.
• 3 Jabsco Rule 1100 automatic bilge pumps
• Vacuflush head system with 30 gallon holding tank equipped with pump out and
  macerator discharge.
• Back-up Bosworth high-capacity cockpit-operated manual bilge pump.
• Centralized gray water discharge system through transom to minimize thru-hulls.
• Gray wayer sump with inspection port for shower, head, icebox and AC condensate
• Marelon non-corrosive thru-hulls/seacocks with strainers and double clamped hose.

Hull & Deck


• Modified deep-V offshore hull design with sharp entry and moderate beam having
  dual lifting strakes, chine flats, 19-degree transom deadrise carried forward 13 feet
  for stability at rest a dry ride and level acceleration.
• ISO (CE Mark) Certified for Ocean Category A use and further engineered to meet
  ISO structural standards for a vessel capable of 45 knots in 21ft. seas.
• Solid keel, stem and transom corners backed by a structural grid using unidirectional
  E-glass/epoxy GRP to minimize damage from impact.
• 2 Side entry doors onto the cockpit sole
• Transom door to swim platform
• PVC guardrail and quarter-guard with high-polish stainless steel rub strips.
• 4 Lewmar hull opening ports in forward cabinand main saloon with screens and


• Molded swim platform with recessed dinghy cleats.
• Custom Armstrong stainless swim ladder and grab rail
• 17 Stainless Steel grab rails located on the pilothouse corner posts, hardtop, cabin
  top, under the hardtop, on the aft seat backs, galley overhead, outboard on the
  piloting consol and either side of the companionway entrance.
• 29" cockpit guardrail
• 24' bow rail with 400,000 c.p. spotlight and 16" burgee staff mount
• Muir anchor windlass with both deck and cockpit controls.
• Auto-launching polished stainless claw anchor with 250' of rode and 25' of stainless
• Anchor & chain and rode fresh water washdown
• Polished stainless steel bow guard
• Custom stainless steel multi-directional bow chocks
• Varnished teak storage drawers under the piloting seats
• Large pilothouse settee lockers both Port and Starboard with piston-activated
  lockable lids, vinyl flooring and mesh organizer bags.
• Cockpit seat lockers both port and starboard side
• 36"x30" single-leaf gloss-varnished teak table with fiddles
• Pilothouse settees with Ultraleather cushions and backrests(color: Promessa
  Cashmere) that convert to 6.5' berths.
• 8 Lewmar overhead deck hatches
• 6 cabin trunk opening ports with screen in the forward cabin, head, shower, galley
  and main saloon.
• Gloss-varnished, paneled & louvered, lockable (from inside and out) sliding teak
  companionway door with 4 sectioned hinged cover. The cover is equipped with a
  chartbook retainer and fiddle.
• Teak & Thiokol pilothouse decking
• Teak & Thiokol aft cockpit decking and deck step
• Cockpit cover to protect the teak cockpit
• Custom aft bench seat plus added chair in Ultraleather Promessa Cashmere for easy
  access to swim platform (2017)
• Stamoid rain and sun cover for stern seat

Upgrades/Major Maintenance


New Port & Starboard Engine Long Blocks
Installation of completely rebuilt Port & Starboard Engines
1200 Hour service P&S Engines
New AB 9AL Tender


New Northern Lights 6kw Generator
New Nautley Dinghy Davits
New starting batteries


P&S Heat exchangers cleaned & rebuilt
Install of new Sliding Side Windows


Repaint Topsides/boot top/cove stripe
Rebuilt P&S IPS Drives
New house Batteries


New ECM Starboard engine
Update software
Custom Spar prop carrier
Set of spare props with the prop carrier


New Fusion Stereo
Sirius audio/WX receiver
HSS Newark switch
Rogue Wifi antenna
Glomex TV Antenna
One set of Spare Props


New Power Windows
New Freezer                                                                                                            New 2 drawer 12V refrigerator

Aft Bench shortened/ Aft Seat added


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.

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