M&M Marine Sales – Your Premiere Boat Dealer

Massachusetts premiere boat dealer for Key West, Defiance, and MayCraft boats! M&M Marine is a full-service boat dealer conveniently located between Greater Boston and Cape Cod in Plymouth, MA. We are one of the largest Key West dealers in the United States and are very excited to now also bring both Defiance and MayCraft Boats to MA! We also provide boat service, maintenance, and repairs by experienced, trained technicians.

We stock a wide variety of lengths and models across our brands and can also custom order a boat if so desired. We also carry a great selection of pre-owned boats for sale.

Conveniently located off Route 3 in Cedarville, Plymouth, stop in today or email us for more information on helping you find the perfect boat for you and your family to begin creating memories that will truly last a lifetime!