2003 Mainship 400 Trawler
|Fort Pierce, FL
$230,000
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2003 Mainship 400 Trawler — Loop-Proven, Meticulously Updated, Turn-Key
Few boats in this class come to market this well sorted. This Mainship 400 has just completed America's Great Loop under her current owners, and six years of continuous, documented investment — most of it in the last thirty-six months — is all still aboard.
At her heart is a single Caterpillar 3126TA, 385 horsepower, with just 1,375 hours. The 1,000-hour service is long behind her, heat exchangers flushed, impellers and zincs current, and a three-stage Racor setup with fuel polishing lets you change filters underway without breaking stride. Fresh Pettit Trinidad bottom paint and a polished, waxed hull, May 2025.
The electronics are genuinely current: Raymarine Axiom+ displays at both helms — 12" above, 9" below — with Quantum radar, EV-1 autopilot, Tri-Data instruments, Class B AIS, and Standard Horizon DSC radios at both stations. Mast-mounted Starlink Gen 3 runs off its own 12-volt supply.
Belowdecks she's a proper two-stateroom cruiser: island queen forward with en-suite head and separate glass-door shower, twin-berth guest cabin to port, 6'6" headroom throughout. Headliners and wall coverings — the Achilles heel of many Mainships of this vintage — have all been replaced with upgraded LED lighting, and teak-and-holly-look soles replace the original carpet. The rebuilt propane range with working oven and an engine-heated hot water system mean you can cook and shower at anchor without running the generator.
Topside, a ¾ flybridge enclosure (2024) extends the season, and the aft bridge deck carries a summer kitchen with grill, sink, and ice maker. Seawise davits handle the included Avon 310 RIB and Honda 15hp. Side Power bow thruster with new gear leg and quiet props (2025), Kohler 8kW generator, Mastervolt 2000W inverter/charger (2025), Trojan AGMs, reverse-cycle heat and air, Sea-Fire suppression, and a hinged mast that drops in two minutes for the 17' air draft the Loop demands.
With a 3'8" draft and 300 gallons of fuel, she's ready for the Bahamas, the Chesapeake, or another lap of the Loop. Ground tackle, spares, fenders, linens, and galley kit all convey. Step aboard, provision, and go.
Disclaimer
We provide this yacht listing in good faith, and although we cannot guarantee its accuracy or the condition of the boat. The South Jersey Yacht Sales - CCM is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Norwood & Skiff Yacht Group. She is subject to prior sale, price change, or withdrawal without notice and does not imply a direct representation of a specific yacht for sale.
MANUFACTURER: Mainship
BOAT TYPE: Trawlers
MODEL: 400 Trawler
HULL MATERIAL: Fiberglass
YEAR: 2003
CATEGORY: Power
BEAM: 14.17 ft
LENGTH: 42 / 12.80 m
DRY WEIGHT: N/A
ENGINE 1
MAKE: Caterpillar
MODEL: 3126
FUEL: diesel
POWER: 385 HP
TYPE: Inboard
HOURS: 1701
LOCATION: N/A
DRIVE: Direct
PROPELLER TYPE: N/A
YEAR:
FUEL TANK CAPACITY: 0 gallons
FUEL TANK COUNT: 2
WATER TANK CAPACITY: 0 gallons
WATER TANK COUNT: 1
HOLDING TANK CAPACITY: N/A
HOLDING TANK COUNT: N/A
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.
2003 Mainship 400 Trawler — Loop-Proven, Meticulously Updated, Turn-Key
Few boats in this class come to market this well sorted. This Mainship 400 has just completed America's Great Loop under her current owners, and six years of continuous, documented investment — most of it in the last thirty-six months — is all still aboard.
At her heart is a single Caterpillar 3126TA, 385 horsepower, with just 1,375 hours. The 1,000-hour service is long behind her, heat exchangers flushed, impellers and zincs current, and a three-stage Racor setup with fuel polishing lets you change filters underway without breaking stride. Fresh Pettit Trinidad bottom paint and a polished, waxed hull, May 2025.
The electronics are genuinely current: Raymarine Axiom+ displays at both helms — 12" above, 9" below — with Quantum radar, EV-1 autopilot, Tri-Data instruments, Class B AIS, and Standard Horizon DSC radios at both stations. Mast-mounted Starlink Gen 3 runs off its own 12-volt supply.
Belowdecks she's a proper two-stateroom cruiser: island queen forward with en-suite head and separate glass-door shower, twin-berth guest cabin to port, 6'6" headroom throughout. Headliners and wall coverings — the Achilles heel of many Mainships of this vintage — have all been replaced with upgraded LED lighting, and teak-and-holly-look soles replace the original carpet. The rebuilt propane range with working oven and an engine-heated hot water system mean you can cook and shower at anchor without running the generator.
Topside, a ¾ flybridge enclosure (2024) extends the season, and the aft bridge deck carries a summer kitchen with grill, sink, and ice maker. Seawise davits handle the included Avon 310 RIB and Honda 15hp. Side Power bow thruster with new gear leg and quiet props (2025), Kohler 8kW generator, Mastervolt 2000W inverter/charger (2025), Trojan AGMs, reverse-cycle heat and air, Sea-Fire suppression, and a hinged mast that drops in two minutes for the 17' air draft the Loop demands.
With a 3'8" draft and 300 gallons of fuel, she's ready for the Bahamas, the Chesapeake, or another lap of the Loop. Ground tackle, spares, fenders, linens, and galley kit all convey. Step aboard, provision, and go.
That's about 350 words, down from 520. If you want it tighter still, the flybridge/systems paragraph is the easiest one to trim further — most of that gear will show up in your equipment list anyway.
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