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Brian Borchers
Brian BorchersYacht BrokerSmith Yacht Sales
+1 (781) 749-9989+1 (781) 974-8469brian@smithyacht.com
Pre-OwnedPower
Warwick, RI, US

2004Mainship 430 Trawler

$239,000 USD
43'Length
15' 6"Beam
DieselFuel

Overview

The 2004 Mainship 430 combines the comfort and livability of a motor yacht with the efficient, practical character of a true cruising trawler. Designed for extended stays aboard, she offers generous interior volume, excellent visibility, and the kind of thoughtful layout that makes long-distance cruising—and relaxing at the dock—equally enjoyable.

Her spacious salon provides an inviting gathering area with abundant natural light and excellent sightlines. Below deck, the well-appointed accommodations provide comfortable sleeping quarters for family and guests, while the galley is designed for practical meal preparation during extended time aboard.

Outside, the 430's expansive flybridge is one of her defining features. It provides an ideal setting for entertaining, relaxing, and enjoying panoramic views underway. The aft deck adds another versatile outdoor living space, creating a natural flow between the interior and exterior areas.

With her substantial fuel capacity, comfortable cruising characteristics, and capable semi-displacement hull, the Mainship 430 is well suited to coastal cruising, extended voyages, and seasonal living aboard. Her twin diesel configuration provides dependable power and maneuverability, while her relatively modest draft opens up a wide range of cruising destinations.

Boat Details

Dimensions

Length Overall43'
Display Length43'
Beam15' 6"
Max Draft3' 8"
Min Draft3' 8"

Boat Details

Year2004
MakeMainship
Model430 Trawler
ConditionUsed
CategoryTrawlers, Motor Yachts
ClassTrawlers
TypePower
Hull MaterialFiberglass

Performance

Fuel TypeDiesel

Weights

Dry Weight36,000 lbs

Tanks & Capacity

Fuel Capacity500 gal
Fresh Water250 gal
Holding Tank50 gal

Builder & Registry

Boat LocationWarwick, RI, US
Registration NumberMPTSM097D304
Listed SinceSep 24, 2026

Propulsion

Engine 1Yanmar 6LYA-STP
Engine TypeInboard
FuelDiesel
Power370 HP
Hours1550
Drive TypeDirect
Year2004
Engine 2Yanmar 6LYA-STP
Engine TypeInboard
FuelDiesel
Power370 HP
Hours1550
Drive TypeDirect
Year2004

Additional Specs, Equipment and Information

Highlights

  • Spacious 43-foot cruising platform

  • Approximately 15'6" beam for exceptional interior volume

  • Two-cabin, two-head accommodations

  • Large, comfortable salon with excellent visibility

  • Well-equipped galley suitable for extended cruising

  • Expansive flybridge with excellent entertaining space

  • Generous aft deck

  • Twin diesel power

  • Approximately 500-gallon fuel capacity

  • Approximately 250-gallon freshwater capacity

  • Semi-displacement hull designed for comfortable cruising

  • Excellent visibility from the lower helm and flybridge

  • Practical layout well suited to extended stays aboard

The Mainship 430 is a proven cruising design that offers the space, amenities, and versatility to serve equally well as a comfortable family cruiser, a Great Loop-capable trawler, or a floating home away from home.

Owner Upgrades

  • Hard Top (2012)
  • Ropelight - dimmable
  • Helm spot (white/red)
  • Dual spots (white)
  • Forward Sunpad w/ cover (2020)
  • Mastervolt CombiMaster 12V/2000-100A Inverter
  • Bow Thruster (2015)
  • Victron Energy dedicated charger
  • Arid Bilge vacuum (2026)
  • Floscan fuel meter at the Upper Helm Station
  • Spurs Line Cutters - refurbished 2021
  • Fresh water flow meter for aft tank
  • Vacuum pressure gauge for Racor
  • St Croix Little Crane - rail mounted
  • Front window sun screen cover
  • Bridge helm sun cover

Replaced trim controllers to Bennett (2018)

  • New EIC Controller (2026)
  • New batteries – 2024??
  • House – 4 Deka Golf Cart 6 V (6/2021)
  • Starting: 2 banks / 3 Deka Dual Purpose GR24) ea (4/2022)
  • New water heater: 5/24
  • New Pyle Bluetooth Radio w/ speakers: 7/2026
  • New Horn: 9/2026
  • Replaced holding tank sensors
  • New fridge: 2024 ??
  • New Microwave: 9/2026
  • New Aft washdown (5/2026)
  • New Golight | GT Series Model 20074GT LED Spotlight (2026)
  • New Magma Grill burner (2023)
  • New Window treatments - salon & master (2019)
  • All interior lights are now LED

Electronics

Raymarine 2019:

  • 12” Axiom
  • 9” Axiom Plus
  • 4K Doppler Radar
  • RNS5 - Gigabit switch
  • Autopilot
  • EV-1 Course Computer
  • RS-150 GPS Sensor - pole mounted
  • P70Rs Control Head / Display unit
  • ACU150 Actuator Control Unit
  • RV-220 RealVision 3D transducers (2021)
  • AIS700 Transceiver (2025)
  • New NautiControl wireless controller (2026)

Entertainment

  • Salon Stereo w/ surround sound speakers
  • Salon Stereo - DVD player
  • Flat screen TV
  • Shakespeare TV Antenna

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.

Photos59 images

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