IMMRAMA is an exceptionally well-equipped and meticulously maintained 2016 MJM 40z, delivering the performance, efficiency, comfort, and versatility that define the MJM name. Her owners have cared for her with a strong emphasis on preventative maintenance and reliability, while continually upgrading her mechanical systems, electronics, cruising equipment, and onboard comforts. With the corresponding major service interval already completed, she is well-sorted, extensively equipped, and genuinely ready to cruise.
Widely regarded as one of the finest performance-oriented cruising boats ever designed, the 40z meets its intended goals with rare precision. She pairs spirited performance with outstanding fuel efficiency, and comfortable extended cruising for a couple with the trend-setting sociability of a day boat. A single-level deck and just two steps down to the cabin make moving about safe and effortless, while Volvo IPS joystick control takes the stress out of docking. Her 12' beam and low overall height also make transporting her to your favorite destinations remarkably easy.
Built by Boston BoatWorks, the 40z reflects the advanced construction that established MJM's reputation for strength, efficiency, and offshore capability. Her lightweight epoxy composite structure combines E-glass with CoreCell closed-cell foam, reinforced with solid glass at the keel, stem, and transom corners, and her hull carries CE Category A Ocean certification. The result is a sophisticated, high-performance cruiser that pairs exceptional build quality with the smooth ride, precise handling, and efficiency for which MJM is known, making IMMRAMA a compelling opportunity for the discerning buyer.
Broker Notes:
• Twin Volvo Penta IPS 500 engines (370hp each)
• Seakeeper 6 gyroscopic stabilizer
• Northern Lights 6 kW generator –
• Schenker watermaker – fully serviced December 2025 with new membranes and filters
• Garmin electronics updated 2025
• New VHF radio 2025
• Starlink satellite internet
• Marine Guardian remote vessel monitoring and security system
• Two operational Victron inverters
• Additional spare Victron charger/inverter
• New AGM battery bank and monitoring system 2024
• Custom cockpit sun and wind screens
• New Eisenglass between cockpit and pilothouse 2026
• New cockpit cushions and covers 2026
• Aft cockpit bimini
• Pilothouse privacy curtains
• New Smart TV in pilothouse 2025
• Fusion stereo system with Bose speakers
• Versachock dinghy cradle on aft platform
• New dinghy 2025 with 2026 cover
• Spirit ePropulsion electric outboard
• Dual anchoring systems – stainless-steel claw and Spade anchors
• Extra propeller set with custom bow storage system (inclusion subject to confirmation)
• Approximately 28-knot cruise / 38-knot maximum speed
Recent Services & Upgrades:
2026
• Full Volvo Penta IPS 500 engine 1,500-hour service – April
• Northern Lights 6 kW generator 2,500-hour major service – April
• Seakeeper 6 scheduled service – April
• New Eisenglass between cockpit and pilothouse
• New cockpit cushions
• New cockpit cushion covers
• New dinghy cover
2025
• Schenker watermaker fully serviced – December
• New watermaker membranes and filters
• Garmin electronics updated
• New VHF radio
• New pilothouse Smart TV
• New dinghy
2024
• New AGM battery bank
• AGM battery monitoring system installed
Engines:
• Twin Volvo Penta IPS 500
• Engine Type: Inboard
• Drive Type: IPS Pod
• Fuel: Diesel
• Regular oil changes and scheduled maintenance approximately twice annually
• Additional spare propellers with custom-designed bow storage (inclusion subject to confirmation)
Performance:
IMMRAMA's advanced MJM hull design and twin Volvo Penta IPS 500 propulsion deliver an impressive combination of speed, responsive handling, and fuel efficiency. With a comfortable cruising speed of approximately 28 knots and a maximum speed approaching 38 knots, she offers exceptional versatility for coastal cruising and extended passages.
At an economical cruise of approximately 20–22.5 knots, fuel efficiency improves to approximately 1.3 nautical miles per gallon, providing an excellent balance of performance and cruising range.
• Cruising Speed: Approximately 28 knots
• Maximum Speed: Approximately 38 knots
• Economical Cruise: Approximately 20–22.5 knots
• Economical Efficiency: Approximately 1.3 nautical miles per gallon
Generator:
• Northern Lights 6 kW generator
• Regularly maintained as part of the vessel's preventative maintenance program
Stabilization:
• Seakeeper 6 gyroscopic stabilizer
• Regularly operated and maintained
• Provides significant roll reduction underway and at anchor
Electronics / Navigation Equipment:
• Garmin navigation electronics – updated 2025
• VHF radio – new 2025
• Starlink satellite internet
• Marine Guardian remote monitoring and alarm system
• Seakeeper 6 gyroscopic stabilizer
• Fusion stereo system
• Bose speakers
• Two operational Victron inverters
• Additional spare Victron charger/inverter
• AGM battery monitoring system – installed 2024
Marine Guardian Monitoring Features:
• Bilge activity monitoring
• Shore power connection monitoring
• Battery status monitoring
• Intrusion/security alarm
• Remote vessel location monitoring
Electrical Systems:
• Two operational Victron inverters
• Additional spare Victron charger/inverter
• New AGM battery bank – 2024
• AGM battery monitoring system – 2024
• Cockpit electrical receptacle suitable for an electric grill
• Northern Lights 6 kW generator
Watermaker:
• Schenker watermaker
• Comprehensive service completed December 2025
• New membranes
• New filters
• Associated system servicing completed
• Provides additional freshwater independence for extended cruising
Cockpit / Helm:
• Custom-made sun and wind screens encompassing the entire cockpit
• Aft cockpit bimini
• New Eisenglass between cockpit and pilothouse – 2026
• New cockpit cushions – 2026
• New cockpit cushion covers – 2026
• Pilothouse privacy curtains
• New pilothouse Smart TV – 2025
• Fusion stereo system
• Bose speakers
• Cockpit electrical receptacle suitable for an electric grill
• Versachock dinghy cradle on aft platform
IMMRAMA's extensive custom cockpit weather protection is a particularly distinctive feature. The combination of custom sun and wind screens, aft bimini, and new Eisenglass substantially enhances the comfort and usability of the cockpit and pilothouse in varying conditions.
Galley / Interior Equipment:
• Microwave/convection oven
• New pilothouse Smart TV – 2025
• Fusion stereo system
• Bose speakers
• Pilothouse privacy curtains
Tender / Swim Platform:
• Versachock dinghy cradle installed on aft platform
• Dinghy – new 2025
• Dinghy cover – new 2026
• Spirit ePropulsion electric outboard
Ground Tackle:
• Original stainless-steel claw anchor
• New-generation Spade anchor
• Approximately 100 ft. anchor chain
• Approximately 150 ft. anchor rope/rode
• Two anchoring systems for added cruising versatility
Construction:
The MJM 40z was designed to deliver the performance, strength, efficiency, and offshore capability associated with advanced composite yacht construction.
Built by Boston BoatWorks in Massachusetts, the MJM 40z incorporates lightweight epoxy-composite construction techniques developed to maximize structural integrity while minimizing unnecessary weight.
The result is a remarkably capable performance cruiser combining responsive handling, fuel efficiency, and a comfortable ride.
MJM 40z Design & Construction Features:
• Advanced epoxy-composite construction
• Modified deep-V offshore hull design
• Lightweight structural composite construction
• Vacuum-bagged composite manufacturing techniques
• Closed-cell structural foam core construction
• High strength-to-weight ratio
• Efficient hull design optimized for IPS propulsion
• MJM Quiet Chine design to help minimize wave slap at anchor
• Designed for offshore performance, efficiency, and cruising comfort
IMMRAMA represents an excellent opportunity to acquire a highly equipped MJM 40z with substantial recent maintenance and thoughtful owner upgrades already completed.
Contact ana@diaz-marine.com for additional information or to arrange a private showing.
