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2005 Mainship 40 Trawler

Naples, Florida


Sea Tiger III has twin 240 HP Yanmar diesels and is new to the market and ready for a new owner. She is a perfect yacht for a cruising family or couple.  A veteran of the Great Loop trip.  

  • 2 Stateroom
  • Air-condition
  • Bow Thruster
  • 8 KW Kohler Generator
  • Simrad Package (New 2015)
  • KVH Satellite TV (New 2015)
  • AIS (New 2015)
  • Navionic charts (New 2015)

Call for an appointment now!  

Basic Boat Info

Price: $198,000 (Sale Pending)
Boat Name: Sea Tiger III
Make: Mainship
Model: 40 Trawler
Year: 2005
Condition: Used
Category: Power
Construction: Fiberglass


Length: 40 ft
Length Overall: 41'4 ft
Beam: 14'2 ft
Max Draft: 3'8 ft
Bridge Clearance: 19'2 ft
Cabin Headroom: 6'6 ft
Dry Weight: 24,000 lb
Single Berths: 2
Double Berths: 1
Cabins Count: 2

Engines / Speed

Engines: 2
Engine #1 Specs:
  • Make: Yanmar
  • Model: 4 LHA-STP
  • Drive Type: Direct
  • Fuel: Diesel
  • Engine Power: 240hp
  • Type: Inboard
  • Year: 2005
  • Engine Hours: 1165
  • Engine Location: Port
Engine #2 Specs:
  • Make: Yanmar
  • Model: 4 LHA-STP
  • Drive Type: Direct
  • Fuel: Diesel
  • Engine Power: 240hp
  • Type: Inboard
  • Year: 2005
  • Engine Hours: 1165
  • Engine Location: Starboard
Total Engine Power: 480hp
Cruising Speed: 13.03 kn
Maximum Speed: 15.64 kn


Fuel Tanks: 1
Fuel Tank Capacity: 48.16 ft³
Water Tanks: 1
Water Tank Capacity: 20.87 ft³
Holding Tank Count: 1
Holding Tank Capacity: 7.55 ft³


Heads Count: 1
Drive Type: Direct
Boat Class: Trawlers, Downeast, Flybridge


Deborah Zeller
Listing Broker
Naples Yacht Brokerage


Naples Yacht Brokerage
895 10TH St. S. #302C
Naples, Florida, US, 34102


There is plenty of room for seating and relaxing on the bridge. There is even a Summer Kitchen option providing a grill, sink and icemaker aft of the centerline helm. Wide molded steps offer safe and secure footing to the covered aft deck. Going forward, there are wide, lighted and recessed walkways with overhead protection leading to the foredeck. A stainless steel Sampson post and dual roller pulpit is perfect for setting the anchor and the optional windlass makes retrieval a snap. All rails, hatches and portlights are now fashioned from 316L stainless steel for easy maintenance and great looks. All Mainships, including the 40, are featuring beautiful cherry wood interiors. All cabinets, drawers and tables are solid cherry and the optional cherry and holly sole is very traditional as well as serviceable. The extended salon includes an Ultra leather sofa, entertainment center with Bose audio system, and Luce flat screen TV. A starboard side galley offers a full size, dual voltage refrigerator and freezer, microwave, 3-burner range and oven, and even a coffee maker. Special attention has been given to general and dishware storage and the location for an under counter trash receptacle. To port of the lower station is a full dinette that seats four with a comfortable bench and two chairs. Forward, is a master stateroom with a centerline inner spring queen berth and plenty of hanging, drawer and locker storage. A second stateroom offers two single berths and an optional innovative desk arrangement, and the head, with a separate stall shower is accessible from the master stateroom or the companionway.


You enter the main salon through glass sliding doors which features cherry cabinetry and teak and holly floors and Marine Air  throughout.


SALON; (Starboard Side)

  • Ultra leather sofa which converts to a berth
  • Sliding side windows
  • Sole TV with Glomex antenna control
  • Bose CD Player
  • Bose speakers

GALLEY; (Port side)

  • Princess 3 burner stove/oven
  • Tapan microwave
  • Black & Decker coffee maker
  • Full size dual voltage refrigerator/frezzer
  • Under counter trash receptacle
  • Dual stainless sink
  • Overhead light
  • Sliding side windows
  • Abundant cherry cabinets and drawers 
  • Solid surface counter tops

DINETTE; ( Port side forward)

  • Dinette 
  • 2- bar stools
  • Ultra leather bench seating


  • Wood steering wheel
  • Simrad digital monitor (GPS, Bottom Machine, and radar)
  • Side power bow thruster
  • Simrad auto pilot 16
  • ZF controls
  • Windlass controls
  • Trim tabs
  • Dometic 16,000 BTU New 4/2017 (salon)
  • Sea Fire Alarm/override fire system
  • Overhead light
  • Side door to side deck
  • Large forward windows with center windshield opening
  • 3- wipers/washers
  • Fuel gauge
  • Parallel start switch
  • 12 Volt plug
  • Horn
  • Nav lights 



  • Pedestal center-line queen berth with storage and drawers beneath
  • Samsung TV
  • Overhead hatch w/screen & night shade
  • Hanging locker
  • Storage cabinets
  • 2 opening stainless steel ports
  • Carpeted floors


  • 2-Single berths
  • Hanging locker
  • Opening hatch
  • Overhead hatch
  • CO2 monitor
  • Carpeted floors


  • Sealand vacuflush head with holding tank, mascerator, and deck pump-out
  • Sink w/vanity
  • Solid surface counter top
  • Mirror
  • Enclosed shower/bath tub combination 
  • Overhead light






  • Stainless Sampson post
  • Lewmar windlass
  • Stainless anchor roller
  • Anchor
  • Stainless bow rail
  • Bow electrical hookup 50 AMP with cord

Stern Area:

  • Swim platform
  • Cockpit door
  • Aft Cleats
  • Steps port & starboard side of cockpit
  • 2 diesels fills
  • Aft storage area on gunnel
  • Aft fiberglass staircase to flybridge w/side storage
  • Hot & Cold Shower 
  • Aft cockpit hatch houses;  8 KW Kohler Genset  in sound box 1,355 hours

Oil change system, generator battery, and sea Fire system

  • Doors leading to the salon
  • Extended hard top


Simrad Package, KVH Satellite TV, AIS, & Navionic charts (New 2/18/2015)

  • Simrad digital display. GPS, Radar, and fish-finder & AIS
  • Simrad auto pilot
  • SidepowerThruster
  • Bennett trim tabs
  • Danforth compass
  • ZF controls
  • Windlass controls
  • Standard Horizon VHF
  • Stereo
  • 2- glove boxes
  • 12 Volt DC plug
  • Sea Fire alarm/override system
  • Engine gauges 
  • battery parrell switches 
  • Courtesy, nav, and anchor lights
  • Stainless wheel
  • Single helm seat


  • Hard top
  • Canvas; Green sumbrella bimini and eisenglass enclosure, helm cover, mesh window cover for pilot house (new 08/2014)
  • Port and starboard companion seats
  • L shaped port settee
  • Starboard settee 
  • Flip up table


  • Retractable mast (Antenna mounted; Simrad 4G radar, KIVH satellite  TV, spot light and stern light.aft deck area
  • Stainless stern rails aft deck area
  • Wet bar with sink, ice maker, storage area, and Jenn-Air.aft deck area




  • T-Yanmar FWC diesels 240 HP (1165 Hrs.)
  • Sea water straines
  • Dripless shaft
  • ZF transmission
  • ZF micro commanders controls
  • Hydraulic steering
  • Bilge pumps
  • Sea Fire automatic fire system
  • Oil change system
  • Bow Thruster


  • 8 KW Kohler Generator in Sound Box (Serviced August 2017)
  • Pro Nautic 12-50 AMP charge (New 6/4/2015
  • Battery switches
  • 2- D batteries
  • Generator battery
  • Main AC/DC distribution panels w/meters
  • Water heater



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.