2018 MJM Yachts 40z

  • 40 ft
  • Downeast
  • Mamaroneck, NY, US

Yacht price :




The MJM Yachts 40z is an eco-smart, thoughtfully created game-changer built with advanced composites, having an innovative layout and superior handling. Her strong, lightweight wet pre-preg, post-cure, epoxy/Eglass/Corecell hull results in a very low center of gravity, which translates into greater stability and seaworthiness as well as an impressively comfortable ride. Along with the Nordhavn 40, she is one of only two 40’ yachts ISO Certified Category A Ocean. Her optional Seakeeper gyrostabilizer guarantees “no roll” comfort and less fatigue. Adding further to gracious living is the flush deck from cockpit to helm, combined with side boarding doors at floating dock height. Gone are the many upstairs, downstairs and boarding challenges encountered on other yachts. That large deck for entertaining, fully-opening front windshields, panoramic sightlines and a uniquely open galley with dinette below are real eye-openers in terms of space utilization and ventilation. But to many, 40z’s greatest attribute is how she drives.

The “Express” differs from the standard “Downeast” model only in pilothouse window styling. The side opening on the “Express” is divided in two parts. The lower section of safety glass has a small, opening vent window forward. This model has more hard glass enclosure if one prefers to partially open the sides in warm, rough conditions. The lower glass enclosure helps to contain small children on the pilothouse seats and also provides a lower handrail on the outside of the window frame by which small children can better work their way forward to the bowrail...instead of having to depend on the roof rails.

Joystick Computerized Control

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 new Volvo-Penta IPS or Yanmar joystick control technology makes this goal a reality. The IPS system works with twin pod drives under the hull and the Yanmar with twin sterndrives. 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 new system works far more intuitively than conventional twin shaft drives or joystick/thruster operated jet drives. 

Dynamic Positioning System (DPS) is standard with the Volvo-Penta IPS.  This hovering or 'skyhook' feature is not yet available with the Yanmar sterndrive option.

Unique Features

-Side-opening doors (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

- Roll-up side/aft curtains and fully-opening windshields to regulate airflow in the pilothouse to suit conditions.

- Large (60x78) island berth and separate shower in owner stateroom.

- Dinette converts to guest cabin with Pullman curtain for privacy.

- 40z can be trucked overland without penalty. Width doesn’t exceed 12 feet and height on a trailer is less than 13.5 feet.

How Fuel Efficient?

21 gallons per hour at 25 knots, or 1.2 nautical miles per gallon with standard twin 370 hp Volvo D6 diesels and IPS DuoProp 500 drives. By way of comparison: Power & Motor Yacht Magazine boat tests show the Sea Ray Sundancer 40 consumes 29 gph (.86 nmpg) at that speed, while a Cabo 40 or East Bay 45 consumes 37 gph (.68 nmpg). At $3/gal, that’s $1,110 on a 10-hour trip instead of the 40z's $630. Close to home, you’ll average 4-6 gallons per hour on fill-up… just $25 per hour of general use. That's quite remarkable for a powerboat of this size.  The 40z carries 350 US Gallons of fuel.

Please visit our 40z Gallery for other perspectives.


  • Twin Volvo-Penta IPS 500 (370 hp)

  • Optional IPS 600 (435hp) or Yanmar 8LV (370hp) diesel sterndrives.

  • Epoxy unidirectional tri-axial Kevlar/Corecell and Eglass hull and deck

  • Joystick docking control with Volvo-Penta or Yanmar propulsion.

  • 38 knots top speed

  • Best fuel mileage- environmentally friendly 1.1-1.3 NMPG (20-30 kts).

  • Convertible 3-stateroom sleeping for 6

This is a McMichael Stock Boat  - available for early December delivery. All photos shown are sistership


Basic Information

MJM Yachts
Mamaroneck, NY, US
Available for sale in U.S. waters:
Vessel Name:
Boat Type:
Hull Material:
Hull Type:
Modified Vee
Hull Color:
Majestic Blue
Doug Zhurn
Flag of Registry:

Dimensions & Weight

40 ft - 12.19 meter
44 ft - 13.41 meter
12 ft - 3.66 meter
Draft - max:
3 ft 4 in - 1.01 meter
Bridge Clearance:
9 ft 9 in - 2.97 meter
Dry Weight:
18910 lbs


Volvo Penta
Volvo-Penta D6 370 HP with IPS
Cruise Speed:
24 MPH
Joystick Control:
Engine Type:
Inboard / Outboard
Drive Type:
Stern Drive
Fuel Type:
370 (Individual), 740 (combined)
Max Speed:
44 MPH

Tank Capacities

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


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



Features and Options:


Engine and Systems:

·       Twin Volvo-Penta D6 370 HP diesel engines with IPS 500 joystick docking system.

·       Volvo-Penta DPS (Dynamic Positioning System) that holds vessel in GPS location at current heading.

·       Volvo-Penta Line Cutters between Duo Props

·       Seakeeper 5 Gyro Stabilizer

·       Northern Lights 6KW 1800 rpm 3 cylinder generator

·       32,000 BTU Marine Air air conditioner system

·       32” Drop-down Smart HDTV w/ WIFI streaming, fusion A/V connection in pilothouse

·       Glomex HDTV digital antenna

·       Raymarine AIS 650 system



·       Power opening front windshield

·       Roll up pilothouse sunscreen/privacy curtain

·       Esthec composite decking pilothouse and cockpit

·       Esthec composite decking on swim platform

·       Three-part cockpit cover

·       Aft cockpit bimini top with boot (stores on upper hoop, sailboat style)

Includes Commissioning Package (Compass calibration, full fuel, spares, tools, USCG safety gear, dock & anchoring equipment and orientation in Boston, MA)

Plus a 3 year Volvo Extended warranty – for a total of five years coverage



Presented by :

McMichael Yacht Brokers Ltd

Mamaroneck, NY, US

Our Location :

Featured Yacht :

Disclaimer: 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/her agents, or his/her surveyors, to instigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.