Seaglass

About

1999 Mainship 350 Trawler – Seaglass

The 1999 Mainship 350 Trawler “Seaglass” is a highly sought-after single-diesel cruising trawler offering efficiency, comfort, and easy handling. Powered by a dependable 300hp Caterpillar 3116, she delivers economical cruising performance, paired with a Kohler 8kW generator (1,215 hrs) for extended stays aboard.

Designed for Great Loop cruising, coastal passages, or comfortable liveaboard life, this 350 features dual-zone reverse-cycle air conditioning (16k & 12k BTU), a spacious salon with cherry interior, a fully equipped galley with Corian counters, and a private master stateroom with island berth. The guest cabin with twin berths and a separate enclosed shower make her ideal for cruising couples or small families.

Her flybridge is fully protected with a Stamoid Bimini and full Strataglass enclosure, and docking is simplified with a Side-Power bow thruster. Updated electronics include a Raymarine Axiom RV9 touchscreen MFD with Quantum radar, VHF with RAM mic, and full upper and lower helm stations.

Well-equipped, well-maintained, and loaded with factory options, Seaglass represents an outstanding value in the 35’ cruising trawler market.

Highlights

  • Single 300hp Caterpillar 3116 diesel

  • Kohler 8kW generator (1,215 hrs)

  • Dual-zone A/C with reverse cycle heat

  • Raymarine Axiom RV9 + Quantum Radar

  • Side-Power 4HP bow thruster

  • Upper & lower helms

  • Full Strataglass enclosure (2020)

  • Oil X-Change-R system

  • Cherry interior, updated salon furniture (2022)

  • Windlass & dual anchors

  • Racor fuel polishing system

  • Excellent Great Loop candidate

Basic Information

  • Builder: MAINSHIP
  • Category: Trawler Yacht
  • Model: 350 Trawler
  • Model Year: 1999
  • YearBuilt: 1999
  • Country: United States

Dimensions

  • LOA: 35' (10.67m)
  • Beam: 14' 2" (4.32m)
  • Max Draft: 3' 8" (1.12m)

Speed / Weight

  • Gross Tonnage: 0.00 Pounds
  • Water Capacity: 130 Gal Gallons
  • Holding Tank: 30 Gal Gallons
  • Fuel Capacity: 300 Gal Gallons

Accomodation

  • State Rooms: 2
  • Captains Quarters: No

Hull & Deck

  • Hull ID: MPTHB139A999
  • Hull Material: Fiberglass
  • Deck Material: Fiberglass
  • Hull Configuration: Monohull

Engine Information

  • Engine Count: 1
  • Manufacturer: Caterpillar
  • Model: 3116
  • Engine Type: Inboard
  • Fuel Type: Diesel

Seaglass