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2010 MJM 40z Downeast



A special opportunity to own a beautifully updated MJM 40z. PassageMaker Magazine called the 40z the “best couples performance cruising yacht.” The MJM 40z is a highly sought-after vessel for her speed, stability, comfort, and unmatched fuel efficiency. This example, “Z” has undergone an extensive refit.

Only two owners. Oversized swim platform. Long salon settee converts into two bunk beds. Aft cockpit table converts to port daybed. In 2019, she was updated with new upholstery, new aft enclosure, new electronics, new toilets, new black water plumbing, new stove, new oven, new Victron charger, new air-conditioning, new ducting, new hatches, new shade-screens, new privacy curtains, new electrically operated forward window rams, new hand-painted (awlcraft) toe rails and transom finish to look like teak (no maintenance), new Glendenning electrically retracting shore power cord, new cushions, new electronics and new IPS units. Genset has only 550 hours. Engines were rebuilt in late 2021. All new gaskets, rings, and hoses were installed. The full 1000 engine hour service is complete. Bottom paint is fresh. ‘Z’ is a special MJM that has enjoyed MJM factory team care for five years. She is clean, updated, loved, reliable, and ready to set off on your next adventures! The new pilothouse zip enclosures install in February 2024!


  • Flush deck with side boarding doors at floating dock level
  • Fully-opening electric windshields
  • US-built of tough, ultralight epoxy composite construction
  • Volvo Penta IPS joystick docking

Key Features

  • 1.1nmpg at 29 knot cruising speed
  • ISO Certified Category A Ocean

LOCATION: Mamaroneck, NY

  • Engine Hours:
  • Length Overall:
  • Length On Deck:
  • Beam:
  • Dry Weight:
  • Fuel Capacity (Outboards):
    350 GAL
  • Water Capacity:
    100 GAL
  • Standard Power:
    2x Volvo Penta IPS 370
  • Top Speed:
  • Best Cruise Speed:

2010 MJM 40z Downeast

$674,500  |  length: 44  | Mamaroneck, NY


Electrical Equipment

- Shore Power Inlet

- Generator



- Depthsounder

- Radar

- Log-Speedometer

- TV Set

- Navigation Center

- VCR – Plotter

- DVD Player

- Autopilot

- Radio –



- Cockpit Speakers


Accommodations (cont.)

Inside Equipment

– Microwave Oven

– Air Conditioning

– Heating

–Hot Water

– Battery Charger


Outside Equipment/Extras

– Teak Cockpit

– Cockpit Table

– Swimming Ladder

Additional Equipment

– Joystick Control

Color Customizer

2010 MJM 40z Hull Bottom Stripe Cove Stripe
Hull -
Bottom -
Stripe -
Cove Stripe -

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Sales Consultant
Contact John for additional information on this boat.

Email: Johng@mcmyacht.com
Call: (203) 247-0470

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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