mJm 40z
| Length on Deck | 40'0" |
| Beam | 12'0" |
| Draft | 3'3" |
| Displacement | 18,908lb |
| Power | (2) 370hp |
| Max Speed | 38 Kts |
| Cruise Speed | 28 Kts |
| Cruising Range | 423 KM |
| Builder | mJm Yachts |
Welcome to the new queen of the mJm fleet. The mJm 40z adds twin engine control and expanded cruising capabilities to the 36z concept.