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Newsletter Sign Up ![MJM 42 running on plane](/sites/default/files/MJM%2042%20running%20on%20plane.jpg) - [Schedule A Test Drive](/user/login?destination=/markdownify/node/146119) - [Dealer Contact](/user/login?destination=/markdownify/node/146119) - [Compare to other boats](/boats/compare/146119) [Request More Boat Information](/request-more-boat-information-boat-test) --- [ ![Boat History Report Banner Ad](/sites/default/files/images/2020-09/boathistoryreportbanner.jpg) ](https://boathistoryreport.com/?utm_source=BoatTEST&utm_medium=testsNew&utm_campaign=affiliate) ## Brief Summary ## The MJM 42: Liveaboard Luxury Refined The MJM 42 showcases a distinctive Carolina Downeast design, representing the pinnacle of couples’ liveaboard performance yachts. ![MJM 42 outboard layout](/sites/default/files/MJM-42-OB-layout-7-9-25.jpg) Image courtesy of MJM### Performance and Handling The MJM 42 delivers high performance with exceptional fuel efficiency, thanks to its light, strong, post-cured epoxy-infused construction. Enjoy a level ride with best-in-class stability and comfort. ![MJM 42 running, close up view of bow](/sites/default/files/MJM-42-running-7-9-25%282%29.jpg) Image courtesy of MJM### Luxurious, Spacious Interiors Her modern accommodations resemble a luxurious hotel suite, featuring a large head and open-concept layout with the comfort of a living room. Belowdecks, the spacious interior is brightened by enormous hull windows and includes a thoughtfully positioned TV. ![MJM 42 master cabin bed](/sites/default/files/MJM-42-master-cabin-7-9-25.jpg) Image courtesy of MJM### Key Features: - Indoor/outdoor pilothouse - Large windows and hatches to maximize natural light - Galley-up for better day use ### Below Deck Comforts: - Open concept - Large head ### Engine Options: - Twin Mercury 600 HP Outboards - Twin 440 HP Diesel Sterndrive ## Specifications | Length Overall | 46' 8" 14.22 m | |---|---| | Beam | 12' 3.66 m | | Draft Up | 25.5" 0.65 m | | Draft Down | 36" 0.91 m | | Deadrise/Transom | 18.5° | | Fuel Capacity | 475 gal 1,798 L | | Water Capacity | 110 gal 416 L | - [Schedule A Test Drive](/user/login?destination=/markdownify/node/146119) - [Dealer Contact](/user/login?destination=/markdownify/node/146119) - [Compare to other boats](/boats/compare/146119) --- ## Related Boats [ ![MJM 35 running](/sites/default/files/styles/500x375_max/public/MJM-35-runnung-7-9-25%282%29.jpg?itok=2h_NcOVO) ](/boats/mjm/38r-2025) [Trawler/LRCs](/boats/trawlerlrcs) ### [MJM 38R (2025-)](/boats/mjm/38r-2025) 2 x 300-hp Mercury Verado V8 [ Review with Captain's Report ![mjm_34z_8-7_1.jpg](/sites/default/files/styles/500x375_max/public/images/news/mjm_34z_8-7_1.jpg?itok=W4Z5VSjQ) ](/boats/mjm/34z-2003-2009) [Express Cruisers](/boats/express-cruisers) ### [MJM 34z (2003-2009)](/boats/mjm/34z-2003-2009) Currently no test numbers [ Report with Video Review with Captain's Report ![](/sites/default/files/styles/500x375_max/public/36Z.jpg?itok=cB23Mj5z) ](/boats/mjm/36z-2014) [Express Cruisers](/boats/express-cruisers) ### [MJM 36z (2014-)](/boats/mjm/36z-2014) 2 x 220-hp Volvo Penta D3 OceanX [ Report with Video Review with Captain's Report ![](/sites/default/files/styles/500x375_max/public/maxresdefault_1.jpg?itok=uRuElpTZ) ](/boats/mjm/40z-2012) [Express Cruisers](/boats/express-cruisers) ### [MJM 40z (2012-)](/boats/mjm/40z-2012) 2 x 435-hp Volvo Penta IPS600 MJM Trawler/LRCs, Express Cruisers,