Brian Borchers
Brian BorchersYacht BrokerSmith Yacht Sales
Pre-OwnedPower
Braintree, MA, US

2003Mainship 390 Trawler

$149,500 USD
39'Length
14' 2"Beam
DieselFuel

Overview

2003 Model - Added Mainship enhancements of production include Stainless Steel Railings, Sampson Post, Stainless Steel Port Lights

The Mainship 390 Trawler blends today's technology with years of experience in crafting thousands of trawlers making it one of the most popular LOOP Boats available today.  Inside the spacious cabin, for example, is a lower helm station that's complete with full instrumentation and a windshield equipped with wipers and washers. The salon features warm teak highlighted by designer fabrics, a color television and VCR, a stereo, and opening windows with screens. Deck access is made easy for shorthanded cruising with a starboard helm sliding door. There is also a large screened sliding door to the cockpit. The 390 Trawler's galley is equipped for cruising or entertaining with a range, an oven, a microwave, coffee maker, a full-size refrigerator, an oversize sink, abundant cabinets, and Corian countertops. The large master stateroom has a center island bed, cedar-lined hanging lockers, an opening portlight and hatch, and again more storage. For guests, a second stateroom features twin berths along with a hanging locker, storage, an opening hatch and a portlight. And finally, the easy cleaning, molded fiberglass head offers a built-in vanity, a shower, an electric vacuflush fresh water fed marine toilet, an opening hatch, a portlight, and a mirror. The power to travel is provided by a standard single diesel. Freshwater cooling, an engine alarm system and a standard fire extinguisher system. To make docking easier, a bow thruster is standard on single engine boats. On the flybridge there is a large area for entertaining or lounging, seating for more than six, and a drop-leaf table. The center helm has great visibility, full instrumentation, and plenty of room for electronics (note the radar mast). This deck is reached by a wide, molded stairway with a full handrail. Access forward to the anchor is protected by a high bulwark and a walk-around deck. In the cockpit there is more than ample storage with deep wells and a lazarette.

Boat Details

Dimensions

Length Overall39'
Display Length39'
Beam14' 2"
Max Draft3' 8"
Min Draft3' 8"

Boat Details

Year2003
MakeMainship
Model390 Trawler
ConditionUsed
CategoryTrawlers, Cruisers
ClassTrawlers
TypePower
Hull MaterialFiberglass

Performance

Fuel TypeDiesel

Weights

Dry Weight22,000 lbs

Tanks & Capacity

Fuel Capacity300 gal
Fresh Water130 gal

Builder & Registry

Boat LocationBraintree, MA, US
Registration NumberMPTHB363E203
Listed SinceAug 31, 2026

Propulsion

Engine 1Caterpillar 3126
Engine TypeInboard
FuelDiesel
Power350 HP
Hours1169
Drive TypeDirect
Year2003

Additional Specs, Equipment and Information

Mechanical Service

Yearly service performed on Diesel and Generator(Oil Change / Filter Replacement)

New Zincs installed each year

2024 - New Alternator and belts replaced

2024 - New Belts for generator 

2024 - RACOR RK 19761 Vacuum gauge added to RACOR Filter

2025 - New Water pump impeller for both Diesel and Generator replaced 

2025 - Reverso Oil Changing System installed

2026 - Aftercooler / Heat Exchanger / Gear Cooler (replaced - NEW) cleaned by Niemeic Marine in New Bedford, MA 

2026 - Full coolant system flush - NEW Caterpillar coolant added 

Owners Service and Improvements

Current owner purchased the boat in 2023, all service records provided in a single binder including a 2023 boat survey and engine survey

Bottom soda blasted, barrier coated and painted in 2024

New Dripless Shaft Seal 2024

New 8D batteries replaced in 2024

New Trim Tabs 2024

RACOR RK 19761 Vacuum gauge added to RACOR Filter 2024

New Alternator and Belts 2024

SCAD TM2 Tank Monitor added 2024

New Bow Thruster AGM batteries replace in 2025

New V2 Windless and Solenoid 2026

New Sun Shades added to the Stern Cockpit area 2025

Plasteak step covers and head floor cover installed 2025 / 2026

AIRLOCK added to both AC Units 2026

Main Cabin AC serviced 2026 

Exclusions

Dometic Electric Cooler

EZ Rider Bean Bags

Personal safety equipment

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.

Photos78 images

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