Step aboard this in-stock 2025 MJM 42 and experience one of the most advanced luxury performance cruising yachts in its class. Designed for discerning boaters who demand efficiency, comfort, and offshore capability, the MJM 42 blends refined Downeast style with modern innovation and exceptional craftsmanship.

Powered by twin Mercury Verado V12 600HP outboard engines and built using MJM’s advanced epoxy composite construction, the 42 offers industry-leading strength-to-weight ratios, a remarkably smooth and quiet ride, and outstanding fuel efficiency. With joystick docking, a Seakeeper, and premium electronics, this model delivers confident handling and effortless operation for seasoned cruisers and owner-operators alike.

The MJM 42 layout is ideal for entertaining and extended cruising, featuring an enclosed pilothouse with 360° visibility, spacious salon and cockpit seating, a fully equipped galley, luxurious forward berth, and a private enclosed head with separate shower. The design emphasizes indoor/outdoor flow with large opening windows, side boarding doors, and convertible seating configurations.

Galley

• Solid surface counter top with recessed sink and cutting board cover

• Gloss finished hand-picked teak cabinetry with soft closing drawer slides, latch pulls, and drawer handles

• Two-burner induction cooktop

• Microwave convection oven combo

• Water purifier

• Flip-panel to garbage bin

• Refrigerator Drawer (1)

• Freezer Drawer (1)

Pilothouse

• Pilothouse with integrated glass system.

• Opening forward windows - electrically controlled

• Tinted sliding glass side windows

• Glass aft enclosure with lockable sliding door

• Roll-up Privacy Curtains on Bridge Deck

• Two overhead hatches

• Cushioned dual helm seat - electrically adjusted

• Cushioned co-pilot seat lowers and converts into C-shaped lounge 

• Gloss finished hand-picked teak drawers located in helm area

• Gloss finished hand-picked teak pilothouse dining table

• Gloss finished hand-picked teak cockpit table

• C-shaped lounge to port

• Galley to starboard

• Cushions

• Storage lockers conveniently located throughout yacht

• Drink holders

• SS handrails conveniently located throughout per ABYC

• Synthetic Teak Flooring

Interior

• Open hotel suite layout, convertible into separate primary suite and lounge areas

 • Sliding partition and cabin door to create separate spaces

• Gloss finished teak and wenge sole with storage locker

• Two panoramic cabin windows, four hull windows, and four overhead hatches

• Enclosed head to stbd, with separate shower. Solid surface countertop, sink, vanity cabinets, and drawers

• Queen amidships berth with memory foam mattress and privacy curtain

• Queen primary berth with memory foam mattress

• Port lounge seating with gloss finished hand-picked teak table • Satin finished hand-picked American cherry paneling and trim 

• Premium headliner

• Towel hooks throughout cabin and head

• Chrome door handles and latch pulls

• Full length head door mirror

• Locker under head sink with toilet paper holder

Systems

• 7.5kw Gas

• Air Conditioning System with reverse cycle heat (40,000 BTU) • Gyro Stabilizer

• Bow Thruster

• Engine Fresh Water Flushing System

• Marine Stereo System with two sub woofers and eight speakers • Anchor, rode, freshwater spray down, & electric windlass

Propulsion and Steering            

• Outboard Twin Mercury Outboard Verado V12 600 HP

• Sea-fire automatic fire suppressant system

• 475 gallon vented, epoxy coated, aluminum fuel tank for OB gasoline option            

• 24” Stainless Edson destroyer wheel with teak rim

• Electric Trim tabs

• Mercury joystick piloting with skyhook and auto-pilot

Hull & Deck            

• Modified deep-V hull w/sharp entry

• Vacuum-infused and post-cured, epoxy composite with biaxial E-glass and closed-cell foam core

 • Solid E-glass and epoxy keel and transom corners

• Vinyl guardrail and 1⁄2 round SS rub rail

• High-density core and/or solid E-glass at thru-hulls and under hardware

• Engineered to ISO Category B Offshore standards

• Hull sides finished with urethane yacht paint

• Single vinyl 3/8” cove stripe

• Single painted chine stripe

• White gelcoat deck with non-skid

• White epoxy painted bilges

• Side and transom entry doors into cockpit sole

• Stainless Steel Bow rail

• SS custom deck cleats

Electrical      

• 12V DC System with breaker switches and LED voltmeter

• 120 VAC/50 amp shore power system with a Glendinning power cord reel with 50 ft shore cord

• 115A alternators

• Charger/inverter with built-in automatic transfer switch, 5000w inverter, 200A charger and color control panel

• Electrical system engineered to ABYC standards

• Three house batteries for a total capacity of 660 amp- hours and three spiral AGM 800 CCA start batteries

• Dimmable overhead LED lights in pilothouse, head, and dry storage areas

• Courtesy lights in bilge and large storage lockers

• LED navigation and anchoring lights

• 12VDC, 120VAC, and USB A/C charging ports throughout

• Bonded electrical system with galvanic isolator

Navigation

• Compass

• LED Lightbar

• Stainless Dual Trumpet Air Horn

• Garmin GPSMAP® 16" plotters (2)

• VHF and AIS w/ handheld remote at helm

• Speed, depth, and temp transducer

• Mercury Vessel View 7"

Plumbing

• Two automatic bilge pumps with high-water alarms

• Electrically operated fresh water toilet w/41 gal. holding tank, marina pump-out & macerator discharge

• Gray water sump w/strainer and clear inspection port for shower and AC condensation

• 13 Gallon Hot Water Tank

• On-demand freshwater pressure system

• Hot/Cold Transom Shower

• Marelon seacocks with oversized strainers and double-clamped hoses

Complementary Owner Package

• Transhield Transport Cover

• 16" Teak Burgee Staff

• Commissioning Kit - Spares, Tools, Docking & Safety Gear • Complimentary Owner Orientation at MJM Factory

• 2.5’ x 4’ national flag w/ gloss finished teak staff

• Vinyl name and hail port on back of aft seat

• Retractable swim ladder

• Cover for aft cockpit seating

Propulsion

• Twin Mercury 600 HP V-12 Verado Outboards w/Joystick, Skyhook, Autopilot & Bow Thruster

Deck

• Aft Cockpit 3pc Cover

• Aft Cockpit Shade System

Systems

• 32" LED Smart HDTV in Salon

• 32" Drop Down Smart HDTV above galley counter with Glomex HDTV Digital TV Antenna

• 120V Electric Grill on Serving Bar

• Underwater Lights (2 on transom)