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1999 Mainship 350 Trawler

San Diego, California


39' Mainship 350 Trawler '99 "The Liberator"

The Mainship 350 trawler allows you to cruise economically or clip off the miles up on plane.  Upgraded 370 HP Yanmar engine in 2005. Her loving owners have spared no expense when it comes to maintenance. Northern Lights generator and  bow thruster. She is in excellent condition with lots of options. Call to schedule a personal showing.

Basic Boat Info

Price: $139,500
Boat Name: The Liberator
Make: Mainship
Model: 350 Trawler
Year: 1999
Condition: Used
Category: Power
Builder: Mainship
Construction: Fiberglass
Boat Hull ID: MPTHB146C999
Has Hull ID: Yes
Range: 6,904.68 mi


Length: 39 ft
Length Overall: 39 ft
Length Of Deck: 39 ft
Beam: 14'2 ft
Min Draft: 3'8 ft
Displacement: 22,000 lb
Cabin Headroom: 6'6 ft

Engines / Speed

Engines: 1
  • Make: Yanmar
  • Model: 6LYA-STP
  • Drive Type: Direct
  • Fuel: Diesel
  • Engine Power: 370hp
  • Type: Inboard
  • Year: 2005
  • Engine Hours: 706
Cruising Speed: 7 kn
Propeller RPM: 900
Maximum Speed: 15 kn


Fuel Tanks: 1
Fuel Tank Capacity: 300 gal
Fuel Tank Material: Aluminum
Water Tanks: 1
Water Tank Capacity: 130 gal
Water Tank Material: Plastic
Holding Tank Count: 1
Holding Tank Capacity: 36 gal
Holding Tank Material: Plastic


Heads Count: 1
Drive Type: Direct
Boat Class: Trawlers, Motor Yachts


our office
Yachtfinders Windseakers


Yachtfinders Windseakers
2330 Shelter Island Drive Suite 207
San Diego, California, US, 92106
Tel:(619) 224-2349


Starting forward is the large master cabin with center-line walk around queen, cedar lined hanging lockers and plenty of storage. Moving aft to starboard is an easy cleaning molded fiberglass head with shower stall and built in vanity. To port your guests will enjoy a second stateroom with double berth, hanging lockers and storage. Further aft is the open salon with galley to port and lower helm with side door to starboard. Aft is a comfortable sofa and to port is the entertainment area. A large sliding door gives you access to the cockpit with molded in steps leading to the huge fly bridge which is perfect for entertaining.  


Nova Kool 12V and 110V refrigeration

Force 10 3-burner electric stove with oven and broiler

GE microwave oven

Black & Decker coffeemaker

Pressure fresh water system

Electronics and Navigation


Raymarine autopilot

Saturn compass

Raymarine GPS

Raymarine chart plotter

Raymarine radar

Ray52 VHF radio

Sight tube tank level indicator

Additional Standard Horizon VHF

Sirius satellite radio




12V DC and 110V AC

(4) Trojan 60volt house batteries

(1) 8D starter battery

(1) 12V genset battery

Battery parallel switch

Battery charger

Xantrex inverter/charger

Northern Lights 6 KW generator – 910 hours


Anchor with 60’ of chain and 150’ rope rode

Lewmar electric winch

Bimini, flybridge enclosure and window shade covers

Deck light

Running lights

Boarding gates

Dock lines and fenders

Swim ladder

Swim platform



Actual loa: 39’ 9”

Last bottom paint – 3/2018

Engine and Mechanical

Bow thrusters

Fuel filters

Bridge and cabin engine controls

(3) electric bilge pumps

Manual wheel steering

36-gal plastic holding tank


Fish box

Live well

Rod holders

Transom door


Life jackets

Fire extinguishers


Other Features and Equipment

Hurricane heater may be inoperable


All seller’s personal effects on board are excluded from the sale of this vessel. Also excluded is all owner’s personal fishing equipment including but not limited to fishing rods, reels, lures and tackle.

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Disclaimer This calculator is intended solely for general informational purposes, and to provide a rough estimate based on the information you provide. You should not base your decision on this estimate alone.