Todd Williams
McMichael Yacht Brokers
447 East Boston Post Road
Mamaroneck, NY, US
Office: 914-381-5900
Mobile: 203-610-1215

2010 MJM Yachts 40z Downeast
Boat Type: Downeast Address: Mamaroneck, NY, US Price: $875,000



This highly upgraded MJM 40Z shows in absolute immaculate condition!  Since 2013 her owners have continuously upgraded her to the latest technology and kept her cosmetics in top shape. One of only a few boats to have Yanmar V8 I/0's, she is the perfect choice for those traveling or storing in shallow waters. The I/O's also make docking on a lift a breeze. This boat was upgraded in 2016 with Hemisphere hovering system. This system takes the Joystick operation of this boat to the next level.  The list below details the recent upgrades that will impress:

MJM 40Z upgrades:

Major refit done summer of 2013 at Boston Boat works:

  1. Original Cummins engines & drive system replaced with Yanmar 370 HP 8LV V8 Diesels including new ZT370 drives, electronic helm system & joystick docking system
  2. Hull topside repainted in majestic blue; entire hull long boarded to mirror finish
  3. Bow rail replaced with new, more ridged design
  4. Full electronics system replaced: Raymarine GS  series 15.4" & 9" displays, auto pilot, radar, depth/fish finder, night vision camera, I70 multi display, VHF & antenna
  5. KVH  system with Dish TV
  6. Ocean LED underwater light system
  7. Custom Crestron audio/visual system with touch screen controls, movie server, music server, Sat radio, wi fi, custom made speakers throughout boat, 2 TV's (well over $100K in equipment)
  8. New wiper motors, horns, batteries, upgrade to latest spec inverter/charger system & security system


  1. Side power bow thruster
  2. Full Stratoglass enclosure replaced
  3. Microwave convection oven
  4. Vacuflush toilet replaced
  5. KVH system upgraded to HD7 with direct TV (in HD)
  6. LED nav lights
  7. LED interior lights


  1. All 3 front windscreen assemblies replaced
  2. Anchor, rode & chain replaced
  3. Hardtop repainted
  4. All gelcoat imperfections repaired
  5. Cockpit mooring cover


  1. Sea Keeper 5 gyro installed
  2. Hemisphere Hovering system installed (similar to "DPS" & "Skyhook" features on other power systems)
  3. Electric windscreen actuators installed on all 3 windows
  4. New interior cushions in main salon
  5. Repainted topsides in majestic blue
  6. Soda blasted bottom, Interlux epoxy barrier boat & repainted
  7. Removable floor mats throughout interior
  8. Privacy curtains
  9. Custom sheets for dinette berth & pilot house berths
  10. Reverso oil change system for mains & gen set
  11. S & S Bimini top

 Check out the video!


Basic Information

Manufacturer: MJM Yachts Vessel Name: 4228 - TMW
Model: 40z Downeast Boat Type: Downeast
Year: 2010 Hull Material: Other
Category: Power Hull Type:
Condition: Used Hull Color:
Location: Mamaroneck, NY, US Designer: Doug Zurn
Available for sale in U.S. waters: Yes Flag of Registry:

Dimensions & Weight

Length: 40 ft - 12.19 meter Draft - max: 3 ft 6 in - 1.07 meter
LOA: 43 ft 1 in - 13.13 meter Bridge Clearance: -
Beam: 12 ft - 3.66 meter Dry Weight: -


Make: Yanmar Engine Type: Inboard / Outboard
Model: 8LV V8 Drive Type:
Engine(s): 2 Fuel Type: Diesel
Hours: 510 Horsepower: 370 (Individual), 740 (combined)
Cruise Speed: 37 MPH Max Speed: 43 MPH
Range: - Joystick Control: No

Tank Capacities

Fuel Tank: 175 gallons - 1 tank(s) Holding Tank: 30 gallons - 1 tank(s)
Fresh Water Tank: 100 gallons - 1 tank(s)    


Total Cabins: - Crew Cabins: -
Total Berths: - Crew Berths: -
Total Sleeps: - Crew Sleeps: -
Total Heads: - Crew Heads: -
Captains Cabin: -    




Ultraleather pilothouse settees convert to 6'6" berths; teak companionway w/2 steps down to main salon, 6'4" centerline headroom, lounge settee opposite galley converts to over/under Pullman berths w/snap-in-place privacy curtain, 2-leaf cherry dining table, access door to head; forepeak island queen berth w/storage under, shelves over, hanging locker, private access to head & shower; dual-entry head/separate stall shower to port, s/s vanity sink

Teak & holly cabin sole; 2016 main salon cushions, 2016 removable floor mats throughout interior, 2016 privacy curtains, 2016 custom sheets for dinette & pilothouse berths, central vacuum system 


Recessed polished s/s sink w/removable Corian cover

Ceramic 2-burner electric stove

2014 Microwave convection oven

Vitrofrigo 5.5 cu. ft. s/s 2-drawer refrigerator

Separate freezer

Corian countertop

Cherry cabinetry w/push-button hardware

Hot & cold pressure water

13 gal. Water heater

100 gal. Poly water tank under main cabin sole

Dockside water inlet w/pressure regulator

Seagull purification system 


Full electronics system replaced 2013:  Raymarine GS series 15.4" at helm & 9" port side displays, auto pilot, radar, depth/fish finder, I70 multi display, VHF & antenna, Flir night vision camera

2013 KVH system w/Dish TV, upgraded 2014 to HD7 w/HD Direct TV

2013 Custom Crestron audio/visual system w/touch-screen controls, movie server, music server, Sat radio, wi fi, custom speakers throughout, 2 TV's (forward stateroom, main cabin) - well over $100k in equipment

Ritchie compass

Radar reflector 


6 KW Northern Lights 1800 rpm generator (678 hrs), 2016 Reverso oil change system

2013/2015 Batteries

2013 Inverter/charger system & security system

Dual 30 amp 110V shore power w/cord

2013 Ocean LED underwater light system

2014 LED interior lights

2014 LED navigation lights


Epoxy & kevlar hull; 2013 majestic blue topsides (entire hull long boarded to mirror finish) repainted majestic blue 2016, white boottop, gold cove stripe, black bottom (soda blasted 2016, Interlux barrier coat & repainted), white deck w/buff non-skid; hardtop repainted 2015

Teak aft deck & helm deck, Stidd seats

2013 Ridged bow rail

All 3 front windscreen assemblies replaced 2015; 2016 electric windscreen actuators; 2013 wiper motors

4 Lewmar tinted opening ports w/screens, 3 deck hatches, Lewmar overhead hatches & screened vent hatches

Lockable gloss varnished louvered teak sliding companionway door

S/S handrails

Molded swim platform with s/s ladder


Original Cummins engines & drive system replaced 2013 w/Yanmar 8LV V8 370 HP diesel inboard/outboards, including new ZT370 drives, electronic helm system & joystick docking system, twin counter-rotating 3-blade props;

2016 Hemisphere Hovering system (similar to DPS & Skyhook features on other power systems):
Unlike the Volvo IPS Pod Drive DPS system where you must disengage the station keeper in order to move the boat with the joystick, the Yanmar Station Keeper allows you to engage the DPS which locks your position in, BUT will also allow you to slowly and safely move the boat in any direction using the joystick and/or Bow Thruster to re-position the boat.  This makes docking in any condition easier and safer.

Sounddown insulated engine room

2016 Sea Keeper 5 gyro

2016 Reverso oil change system for main engines & gen set

350 gal. Fuel capacity in 2 175 gal. aluminum tanks, level sensors, interconnect line w/shut-off valves

Seafire auto fire suppresant system in engine compartment

Portable fire extinguishers

24" Edson destroyer wheel

Marine Air 16000 BTU reverse-cycle air conditioning/heating

Wallas thermostat-controlled diesel heater

2014 Side Power bow thruster

2014 VacuFlush head w/30 gal. holding tank, macerator

3 Shurflo 1000 auto bilge pumps, manual bilge pump


Davis snap davits on platform, West Marine roll-up tender w/inflatable floor, Torqedo outboard w/2 batteries, 4-man Zodiac life raft (inspected through 3/18), 2015 cockpit mooring cover, cockpit cushions, standard teak table in pilothouse, large table in aft cockpit, 2014 full Stratoglass enclosure, 2016 S & S bimini top, hot & cold shower on swim platform, fresh water washdown in port cockpit locker, Muir electric anchor windlass w/deck & cockpit controls; 2015 Ultra anchor w/Altra swivel, rode, chain; 2013 horns


Bought MJM 50z


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.


Location Map

Todd Williams
McMichael Yacht Brokers
447 East Boston Post Road
Mamaroneck, NY, US
Office: 914-381-5900
Mobile: 203-610-1215