43' (13.11m)

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SEA U SOONER - 2003 43' MAINSHIP 430 Trawler
Stuart Florida United States
$249,000 USD

The 2003 43' MAINSHIP 430 Trawler Trawler SEA U SOONER is a boat for sale located in Stuart, Florida, USA. Contact the yacht broker to receive more information or schedule a showing of this 2003 43' MAINSHIP 430 Trawler Trawler SEA U SOONER yacht for sale in Stuart, Florida, USA today!

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LENGTH 43' (13.11m)
BEAM 15' 6" (4.72m)
LOCATION Stuart, Florida, USA
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The Mainship 430 Trawler has taken a classic design and improved it through innovative engineering and modern manufacturing methods. Since its inception 20 years ago, Mainship has produced thousands of boats - mostly in the trawler family. The focus has been, and continues to be, in building high-quality, low maintenance diesel cruisers that are comfortable and affordable.

The 430 Trawler has a fully instrumented lower helm that allows operation during inclement weather, and is equipped with full washers and wipers. The comfortable and adjustable pilot seat doubles as a great place to store the large standard freezer. From the expansive flybridge, captains have a full unobstructed view to all points. Both overhead and console space have been dedicated to electronic needs. Aft of the standard radar mast, are molded steps with diamond non-skid leading to the aft deck which is large enough to store a tender. Sturdy aluminum rails offer excellent handholds, and the cockpit is lowered for safer and easier entry to the full-size swim platform that includes a convenient swim ladder, and freshwater shower.

Heading to the integrated pulpit is safe for all with the wide decks and high bulwarks of the 430. The split anchor well will handle plenty of rode and an extra Danforth, and includes a washdown. Fore and aft shorepower outlets allow for choice of docking. The port and starboard cabin doors make shorthanding a snap as well.

Counter space is usually at a premium on a boat of this size, but the galley on the 430 Trawler is a chef's paradise with plenty of Corian-covered counters, an oversize sink, a three-burner range, a microwave - convection oven, a refrigerator, and loads of storage. All this is on the same level as the salon and has its own deck access door.

Upgrades & Optional Equiment

  • Kohler 8KW Generator -1124 hours
  • Direct TV Antenna 
  • NEW Garmin Electronics throughout
  • Additional complete lower helm station
  • 3 Reverse Cycle Climate Control Units
  • Fly-Bridge Hardtop with Semi Isinglass Enclosure.
  • Fly-Bridge Re-upholstered with Sunbrella Fabric - 2019
  • Garmin Auto Pilot - December 2019
  • AIS Installed - December 2019
  • ProNautic 50 Amp Battery Charger - August 2020
  • New Windless Motor - August 2020
  • Aluminum Inflatable With 20 HP
  • Fusion Bridge System - May 2019 
  • Transom Hose Connection replaced - August 2020
  • New Propeller Shafts – November 2019
  • New dripless shaft seals - 2019
  • New Stainless-Steel Rudders – November 2019
  • New Cutlass Bearings – November 2019
  • Both Engines Aligned – November 2019
  • Swim Platform Reconditioned – November 2019
  • All Interior/Exterior Lighting Updated with LEDs – 2018
  • Updated Delta Anchor – April 2019
  • Central Vacuum System
  • Washer / Dryer
  • Glenndenning Engine synchronizer


  • VHF Radio
  • Raymarine depth sounder
  • Upholstered sofa love seat w/ storage below
  • TV & stereo controls
  • Work desk with storage above and below desk top
  • Complete lower station with engine controls
  • Cherry interior with teak holly flooring
  • Corian bar top with two bar stools overlooking galley
  • (3) Entry/exit doors port, starboard and aft


  • Corian counter tops
  • Double stainless steel sink
  • Bar top to salon
  • Built-in coffee maker
  • Teak and holly flooring
  • Full size refrigerator and freezer
  • Princess 3-burner cook top with oven
  • Microwave - New 2019
  • Storage above and below counter tops
  • Fresh water pressure system with hot and cold

Lower Helm Station

  • Garmin 7612 Chart plotter - New 2019
  • Single lever engine controls
  • Trim tab control
  • Ritchie compass
  • Fireboy engine room suppression override control
  • Anchor windless controls

Flybridge & Electronics Equipment

  • Fixed hardtop - Eisenglass Enclosure - New 2018
  • Sunbrella Upholstery - New 2019
  • Dining Table
  • Separate captain and helm seats
  • Wrap-Around Seating with storage below
  • Courtesy Lighting
  • Garmin Chart Plotter - New 2019
  • Garmin Radar - New 2019
  • AIS - New 2019
  • Garmin Autopilot - New 2019
  • Garmin Transducer - New 2018
  • VHF - New 2019
  • Trim Tab Control
  • Bilge Hi-Water Alarm
  • Fireboy engine room fire suppression override control
  • Anchor Windlass Controls
  • Richie Compass
  • Single Lever engine controls
  • Engine room and transom CCTV system, viewed on Garmin

Master Stateroom

  • Walk Around Queen Island Berth w/ storage drawers below
  • Built-in night stands each side
  • LED Reading Lights
  • Wall Mount Flat Screen TV with internal DVD
  • Cedar Lined, full length hanging locker
  • Storage Cabinets and Drawers with integrated lock latch
  • (4) Port Lights with screens
  • LED Lighting
  • Separate HVAC Control
  • Aft private entry/exit door
  • Private bath w/ large vanity, corian top, sink, teak trimmed medicine cabinet, large shower w/ seat  & glass enclosure, portlight screen &  head

Guest Stateroom, Forward Aft

  • Island Queen Berth
  • Bench Seats each side
  • Reading Lights
  • (2) Portlights
  • Overhead Hatch with screens
  • (2) Extra Large Drawers with integrated lock latches
  • (2) Cedar lined hanging lockers
  • LED Lighting
  • Flat Screen TV with internal DVD
  • Separate HVAC control
  • Guest Bath w/ Vanity, Corian top, porcelain sink, teak trimmed mirrored medicine cabinet large shower w/ seat & glass enclosure, port light, LED lighting, overhead hatch & head

Deck Equipment

  • Windlass with foot controls - New 2019
  • Fresh water anchor wash down 
  • Delta anchor - New 2019 
  • (2) Secondary Danforth anchors 
  • Fresh Water Anchor Washdown
  • Heavy Duty Stainless Steel Rails and Hardware
  • Swim Platform - Reconditioned 2019 
  • Stainless Steel Swim Ladder
  • Dock Water Connection at Transom - New 2019 
  • (2) 50 amp shore power outlets (1 each fore & aft)
  • Courtesy Lighting
  • Running Lights
  • Anchor and Mast Light
  • Tender Lift for dingy with freshwater wash down
  • Aft outdoor fresh water shower arrangement

Engine Room & Mechanical

  • Twin Yanmar 6LYSTP Diesel Engines, 370HP
  • ZF Transmissions
  • Engine alignment 2019
  • Kohler 8KW generator
  • Battery charger - New 2019 
  • Dripless Shaft Seals w/ spare sets - All new 2019
  • Separ Primary fuel filters with Vacuum Gauges for main engines 
  • Racor 500 Primary fuel filter for generator 
  • Oil-X Changer, both engines and genset
  • Seastar hydraulic steering system
  • Seaward 20 gal hot water heater
  • Macerator Pumps, 2 ea
  • Dometic  Air Conditioning Reverse Cycle - (3) Self contained units w/ (1) sea water cooling pump
  • Engine Room fresh water connection 
  • New propeller shafts, gutless bearings, and SS rudders 2019


The Mainship 430 Aft Cabin Trawler is an extremely popular model, sought after for coastal cruising and the Great Loop alike. "SEA U SOONER" is in great condition. Two large staterooms located with privacy are forward and aft, each with a private head.  Upper and lower helm stations offer versatility in all weather conditions and a great social atmosphere where the captain can be a part of the conversation.  Call to arrange a private showing of this very well cared for Mainship today.

Listing Marketed by

George Bittles
RJC Yacht Sales
399 S.E. 18th Court Ft. Lauderdale, Florida, USA

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George Bittles
RJC Yacht Sales