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2016 MJM 50z

Annapolis, Maryland


 2023 pod service, wax, bottom paint and 12 pack of Modelo added.

40Z trades considered 
 MJM is no longer building a 50Z or anything similar. As a result, these boats are solid investments assuming you find one that has been lavished with professional care and refinement like this hull #4. She is a perfect example of that care at a reasonable price.

Jmadra is hull #4, former factory showboat "Zoom". The current and former owners both own significantly larger boats and used this 50Z as a day boat with full time Captain/engineer care. Overall condition and maintenance are impressive and up to date. The pods, transmissions and Volvo's are dialed in up to date with all service records available. 

  • Upgraded Northern Lights generator replaced and updated to 12kw 490 hours
  • hydraulic swim deck/dinghy lift with RIB and outboard (see dinghy photos)
  • Faux teak decking for easy maintenance and good looks
  • Skyhook station keeping
  • all fresh, two 16” Garmin MFD‘s, and a 12" Garmin on the companion side, all options AIS, weather, Fusion Sat radio, cameras, radar, engine data/fuel/range
  • Miele washer and dryer. Professional series PW6068 Plus
  • 3 X Volvo 600 IPS with 1430 hours (all service up to date) with a full set of spare props
  • Seakeeper 9, just serviced
  • All AGM batteries are up to date or new
  • FLIR night vision
  • 2019 10'6" RIB with console and 25 Yamaha included with swim deck set up
  • Bottom painted 2023
  • Service records will be shared upon accepted contract to purchase. 
  • Whisper gray Awlgrip hull 2019
  • MJM trades considered.

Basic Boat Info

Boat Name: JMADRA
Make: MJM
Model: 50z
Year: 2016
Condition: Used
Category: Power
Construction: Composite
Boat Hull ID: EOU50Z04C516
Has Hull ID: Yes


Length: 50 ft
Length Overall: 55'3 ft
Length Of Deck: 50 ft
Beam: 15 ft
Max Draft: 3'10 ft
Min Draft: 2'11 ft
Bridge Clearance: 10'5 ft
Dry Weight: 32,850 lb

Engines / Speed

Engines: 3
Engine #1 Specs:
  • Make: Volvo Penta
  • Model: IPS600
  • Drive Type: Pod
  • Fuel: Diesel
  • Engine Power: 435hp
  • Type: Inboard
  • Propeller Type: Duoprop
  • Year: 2016
  • Engine Hours: 1431
  • Engine Location: Port
Engine #2 Specs:
  • Make: Volvo Penta
  • Model: IPS600
  • Drive Type: Pod
  • Fuel: Diesel
  • Engine Power: 435hp
  • Type: Inboard
  • Propeller Type: Duoprop
  • Year: 2016
  • Engine Hours: 1414
  • Engine Location: Center
Engine #3 Specs:
  • Make: Volvo Penta
  • Model: IPS600
  • Drive Type: Pod
  • Fuel: Diesel
  • Engine Power: 435hp
  • Type: Inboard
  • Propeller Type: Duoprop
  • Engine Hours: 1423
  • Engine Location: Starboard
Total Engine Power: 1,305hp
Cruising Speed: 30 kn
Maximum Speed: 37 kn


Fuel Tanks: 1
Fuel Tank Capacity: 520 gal
Water Tanks: 1
Water Tank Capacity: 170 gal
Holding Tank Count: 1
Holding Tank Capacity: 40 gal


Heads Count: 2
Drive Type: Pod
Boat Class: Downeast


Bill Walczak
"Professional Yacht Brokerage Service above and beyond your expectations".
Questions: Call, text or email Bill Walczak Cell 410.353.4712 ,
Walczak Yacht Brokerage Service


Walczak Yacht Brokerage Service
Walczak Yacht Brokerage Service 612 Third St. Suite # 4A
Annapolis, Maryland, US, 21403

Manufacturer Provided Description

Seakeeper Gyro-Stabilizer is Standard Equipment

Without steadying sails, all powerboats roll...the MJM's less than most due to their low center of gravity. But, the single biggest opportunity for improving comfort afloat on a powerboat is to eliminate rolling. The 50z is the first yacht to offer this leading edge technology as standard equipment. Introduced 5 years ago, over 1,500 Seakeeper units are now in use worldwide, mostly on large custom motoryachts. The Seakeeper resists rather than reacts to the tendency of a boat to roll as it is spinning at 8,000 RPM to create it's stabilizing inertia. The vessel just doesn't roll and seems very solid without any herky-jerky motion.


Extraordinary Fuel Efficiency and Safety

50z fuel efficiency is 0.9 nm/pg at 25 knots. How? The 50z is built lighter and stronger in the USA of pre-preg epoxy, Kevlar, E-Glass and Corecell to exceed ISO Category A Ocean requirements ... the highest reating for seaworthiness issued by IMCI, the International Marine Certification Institute in Brussels. And, its sleek profile and low center of gravity make it more safe, seaworthy and fun to drive.


Easy-to-Operate by Couples

Large boats can be intimidating to operate. But, you can park a 50z solo, thanks to 360° visibility, joystick docking and a single level deck from the wheel aft to cockpit side-opening doors onto a floating dock.


Day-time Privacy for Friends & Family

The MJM 50z offers the best of both worlds: entertaining space for family picnics or cocktail parties on a single level deck.   Plus, hospitable 24/7 staterooms for live-aboard cruising comfort-- not just sleeping cabins belowdecks.

The 50z master cabin includes a desk/dressing table plus easy chair next to a large hull opening port for fresh air and view of the harbor… to read, write, chat on the phone or just have one’s own space.

Exterior and on deck features
  • Hydraulic Swim Deck with dinghy chocks
  • 2019 10'6" AB RIB with Yamaha and cover
  • Muir Windlass, polished ss anchor
  • Boarding gates, port, starboard and stern 
  • Hull was Awlgrip painted in 2019 Whisper Gray
  •  Isotherm ice maker located in the cockpit

  • Stern bench seat with cover
  • Varnished aft cockpit table with cover
  • 2 matching stern seat moveable chairs with covers
  • Cockpit bimini top with stay bars and boot
  • Sea Deck synthetic decking
  • Drop down TV in upper saloon
Wheelhouse and Upper Saloon
  • Fully air conditioned and heat
  • 3 x electric opening windshields
  • U zip roll up side windows
  • Interior sun screens for all windows
  • Drop down TV
  • The upper saloon and wheelhouse area have 2 large storage lockers outboard under the seating. These lockers are capable of storing bicycles, golf clubs, fenders and spares, diving tanks, skateboards and... 
Below Deck and Machinery Notes
  • All pod, engine and generator maintenance is up to date. Records available. Oil samples taken at every oil change.
  • 6 spare props, new 
  • 3 D6-435D-F 435hp Volvo Penta diesels with IPS-F drives 1,430 hours
  • Generator was replaced in 2019 and upgraded to a 12KW Northern Lights 490 hours~
  • Seakeeper 9 stabilization, serviced June 2022
  • Racor 500MA main engine fuel filters
  • Racor R20P generator fuel filter
electrical and electronics
  • 50 Amp shore power on Cable Master system
  • Inverter
  • 12KW Northern Lights generator in sound shield
  • House batteries new in 3.22 Lifeline 8D (3)
  • At the helm:
  • (2) Garmin 16" 8600 series with AIS, engine data, Fusion stereo link, fuel and range, HD Garmin radar, cameras, FLIR night vision
  • 12" Garmin MFD on the port (companion) side 
  • VHF radio, Raymarine
  • Seakeeper gyro control panel
  • Volvo Penta joy stick with Sky Hook station keeping
  • Garmin autopilot
  • Spotlight remote
  • 3 wipers/washers 3 speed
  • electric windshields
Interior Features
  • Open lower saloon with L dinette to starboard and galley to port. 
  • Two large heads with stall showers
  • Bow stateroom with island queen berth
  • American cherry interior
  • 2 Chiller air/heat system
  • Central vac
  • Custom rubber back/bamboo area rugs in upper and lower saloon 
  • 2 Vitrifrigo refrig drawers
  • 1 Isotherm freezer drawer
  • Kenyon 2 burner electric stove
  • Sharp microwave
Please read:
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.