• Slide: The Image of 2005 Mainship 400 Trawler docked in marina, cloudy sky. - 1The Image of 2005 Mainship 400 Trawler docked in marina, cloudy sky. - 1
  • Slide: The Image of 2005 Mainship 400 Trawler docked under cloudy skies. - 2The Image of 2005 Mainship 400 Trawler docked under cloudy skies. - 2
  • Slide: The Image of Interior of a 2005 Mainship 400 Trawler with seating and helm station. - 3The Image of Interior of a 2005 Mainship 400 Trawler with seating and helm station. - 3
  • Slide: The Image of Interior of a 2005 Mainship 400 Trawler yacht with harbor view. - 4The Image of Interior of a 2005 Mainship 400 Trawler yacht with harbor view. - 4
  • Slide: The Image of Interior of a 2005 Mainship 400 Trawler with comfortable seating. - 5The Image of Interior of a 2005 Mainship 400 Trawler with comfortable seating. - 5
  • Slide: The Image of Interior of a 2005 Mainship 400 Trawler with seating area. - 6The Image of Interior of a 2005 Mainship 400 Trawler with seating area. - 6
  • Slide: The Image of 2005 Mainship 400 Trawler at marina, featuring covered helm station. - 7The Image of 2005 Mainship 400 Trawler at marina, featuring covered helm station. - 7
  • Slide: The Image of Outdoor kitchen on a 2005 Mainship 400 Trawler with grill and sink. - 8The Image of Outdoor kitchen on a 2005 Mainship 400 Trawler with grill and sink. - 8
  • Slide: The Image of Outdoor kitchen on a 2005 Mainship 400 Trawler with grill and sink. - 9The Image of Outdoor kitchen on a 2005 Mainship 400 Trawler with grill and sink. - 9
  • Slide: The Image of Deck of a 2005 Mainship 400 Trawler in the marina. - 10The Image of Deck of a 2005 Mainship 400 Trawler in the marina. - 10
  • Slide: The Image of Mainship 400 Trawler 2005 bow view with anchor and blue ropes. - 11The Image of Mainship 400 Trawler 2005 bow view with anchor and blue ropes. - 11
  • Slide: The Image of Mainship 400 Trawler 2005, stair area with railing, marina in background. - 12The Image of Mainship 400 Trawler 2005, stair area with railing, marina in background. - 12
  • Slide: The Image of Interior of a 2005 Mainship 400 Trawler yacht with wooden furnishings. - 13The Image of Interior of a 2005 Mainship 400 Trawler yacht with wooden furnishings. - 13
  • Slide: The Image of Interior of 2005 Mainship 400 Trawler with sofa and wooden table. - 14The Image of Interior of 2005 Mainship 400 Trawler with sofa and wooden table. - 14
  • Slide: The Image of Interior of 2005 Mainship 400 Trawler with dining table and seating area. - 15The Image of Interior of 2005 Mainship 400 Trawler with dining table and seating area. - 15
  • Slide: The Image of Mainship 400 Trawler 2005 kitchen with wooden cabinets and appliances. - 16The Image of Mainship 400 Trawler 2005 kitchen with wooden cabinets and appliances. - 16
  • Slide: The Image of Sleeping area in 2005 Mainship 400 Trawler with nautical bedding. - 17The Image of Sleeping area in 2005 Mainship 400 Trawler with nautical bedding. - 17
  • Slide: The Image of 2005 Mainship 400 Trawler cabin interior with TV and wooden cabinets. - 18The Image of 2005 Mainship 400 Trawler cabin interior with TV and wooden cabinets. - 18
  • Slide: The Image of Interior of 2005 Mainship 400 Trawler with twin beds. - 19The Image of Interior of 2005 Mainship 400 Trawler with twin beds. - 19
  • Slide: The Image of Bathroom in 2005 Mainship 400 Trawler with sink and toilet. - 20The Image of Bathroom in 2005 Mainship 400 Trawler with sink and toilet. - 20
  • Slide: The Image of Engine room of a 2005 Mainship 400 Trawler with visible engine. - 21The Image of Engine room of a 2005 Mainship 400 Trawler with visible engine. - 21
  • Slide: The Image of Engine room of 2005 Mainship 400 Trawler with battery and wiring. - 22The Image of Engine room of 2005 Mainship 400 Trawler with battery and wiring. - 22
  • Slide: The Image of Engine room of a 2005 Mainship 400 Trawler with Yanmar engine. - 23The Image of Engine room of a 2005 Mainship 400 Trawler with Yanmar engine. - 23
  • Slide: The Image of Engine room of 2005 Mainship 400 Trawler with Kohler generator. - 24The Image of Engine room of 2005 Mainship 400 Trawler with Kohler generator. - 24
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2005 Mainship 400 Trawler

$199,000

Used

Boat in Solomons, MD 20688 US

builtBuilt in 2005
Year the boat was built
model

400 Trawler

Boat model
engine

1 Engine (Yanmar)

Engine type and count
length

40 feet

Overall boat length
fuel

Diesel

Fuel type
material

Fiberglass/Reinforced

Hull material

2005 Mainship 400 Trawler - Comfortable Cruising with Classic Downeast Style

The 2005 Mainship 400 Trawler is a perfect blend of efficiency, comfort, and timeless design-ideal for extended cruising or relaxing weekends on the water. Known for her economical single-diesel performance and spacious layout, this vessel delivers an exceptional on-the-water experience with the practicality Mainship is known for.

Powered by a reliable single diesel engine (commonly a Yanmar 370HP), she offers impressive fuel efficiency and long-range cruising capability, making her a favorite among seasoned cruisers and loopers alike.

The wide-beam layout provides a bright and open salon with large windows, offering panoramic views and abundant natural light. The fully equipped galley is designed for functionality, featuring ample storage, solid surface countertops, and full-size appliances-perfect for extended stays aboard.

Below deck, the two-stateroom, one-head layout comfortably accommodates owners and guests. The forward master stateroom features an island queen berth, while the guest stateroom provides twin berths-both offering generous storage and headroom.

Outdoor living is equally impressive, with a spacious aft cockpit ideal for entertaining, easy access to wide side decks, and a flybridge with excellent visibility, ample seating, and a full helm station-perfect for enjoying those sunset cruises.


Key Features:

  • Single diesel engine for fuel-efficient cruising
  • Spacious 2-stateroom layout
  • Bright salon with panoramic windows
  • Fully equipped galley with ample storage
  • Large flybridge with seating and full controls
  • Wide side decks for safe, easy maneuverability
  • Expansive cockpit for entertaining or relaxing


Whether you're planning the Great Loop or looking for a comfortable liveaboard, the Mainship 400 offers an unbeatable combination of value, efficiency, and classic trawler styling.

Nominal Length
40ft
Length Overall
41.33ft
Beam
14.17ft
Max Bridge Clearance
19.17ft
Max Draft
3.67ft
Cabin Headroom
6.5ft
Dry Weight
24000lb
Cabins
2
Heads
1
Fresh Water Tanks
130gal
Fuel Tanks
300gal
Holding Tanks
47gal
Hull Material
fiberglass
Hull Shape
deep-vee
Engine 1
Engine Make
Yanmar
Total Power
370hp
Engine Hours
1500
Engine Type
inboard
Fuel Type
diesel
Accommodations
  • Centerline Master Berth
  • 2 Hanging Closets
  • Master Flat Screen TV
  • Leather Salon Sofa
  • 2 Zone Reverse Cycle AC/Heat
  • Opposing Dinette with Stools
  • Salon Flat Panel TV
  • DVD Player
  • Bose Surround Sound
  • Vacuflush Head with Shower
  • Lower Helm
  • Salon Wood Floor Option (Including In Staterooms)
Galley
  • AC/DC Fridge/Freezer
  • 3 Burner electric stove with Oven
  • Microwave
  • Large Sink
  • Great Cabinet Storage
Deck
  • Bow Thruster with dual helm control
  • Molded Steps To Bridge
  • Swim Platform with Ladder
  • Transom Door
  • Dinghy Davits
  • Windlass w/ dual helm control
  • Washdown system
  • Aft Deck Wetbar with Grill Option & Icemaker
  • Custom Bridge Seating Covers (upholstery looks brand new)
  • Radar Mast with TV antenna
  • Bridge Table
  • Full Enclosure In Great Condition
  • Upgraded Helm Seat
Engines & Mechanical

Yanmar 370 Diesel

Kohler 9kw Generator

Side Power Thruster

Transom Lazerette

Battery Charger

Dripless Shaft Seal

Hot Water Heater

Electronics

Lower Helm:

Flo Scan Gauges

Icom VHF Radio

Upper Helm:

Raymarine C80 GPS

Raymarine E80 GPS & Radar/Depth

West Marine VHF Radio

Clarion Stereo

Floscan Gauges

Default

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

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.

Price History

DateEventPrice
4/10/26Initial price$199,000

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2005 Mainship 400 Trawler. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Trawler cost in today's market, or how much does a Mainship cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$2,258.59/mo
$
$
Loan amount$ 199,000
OR
%

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2005 Mainship 400 Trawler. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Trawler cost in today's market, or how much does a Mainship cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$2,258.59/mo
$
$
Loan amount$ 199,000
OR
%

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By checking this box, I consent to receive recurring marketing text messages, phone calls, and emails from Knot 10 Yacht Sales at the number and email provided, including messages sent using an autodialer or prerecorded voice. Message frequency varies. Message and data rates may apply. Reply STOP to opt out or HELP for assistance. Consent is not a condition of purchase. We'll also send helpful email updates about your boat search. You can unsubscribe whenever you like. See Terms of Use and Privacy Policy.

Contact Knot 10 Yacht Sales

Boat Location Appears Under Price In Listing

By checking this box, I consent to receive recurring marketing text messages, phone calls, and emails from Knot 10 Yacht Sales at the number and email provided, including messages sent using an autodialer or prerecorded voice. Message frequency varies. Message and data rates may apply. Reply STOP to opt out or HELP for assistance. Consent is not a condition of purchase. We'll also send helpful email updates about your boat search. You can unsubscribe whenever you like. See Terms of Use and Privacy Policy.

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