39 Mainship 1998 Boat for Sale

Slow Ya Roll

ASKING PRICE: $108,000 Watch Price

Madisonville, LA

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Last updated Jul 4, 2026

Slow Ya Roll Boat | 39' Mainship 1998

Power Boat Guide: "A huge success, the Mainship 350 Trawler is an economical low maintenance coastal cruiser with classic trawler lines and a good turn of speed. Considered a "performance trawler" the Mainship rides on a semi-displaced hull capable of higher speeds than full displaced trawlers. Stepping inside from the covered aft deck, large wraparound windows provide lots of natural light in the saloon and excellent visibility from the lower helm". Slow Ya Roll features comfortable seating for a couple to starboard in the salon and a L-shaped galley with refrigerator/freezer, Corian counters forward and entertainment/storage aft to port. A teak and holly is attractive and functional, and a sliding door at the lower helm provides easy access to the deck. There are two staterooms with a queen island berth forward (6'4" headroom) with two lockers, drawers under the berth and a double guest berth. The head features 6'4" headroom and a separate shower. The molded in steps provide easy bridge deck/flybridge access from the aft cockpit. The flybridge will be the likely choice for entertaining which features plentiful seating, dinning and expansive views with large canvas coverage for weather protection. The upper helm provides four conner visibility, electronics for navigation and with both bow and stern thrusters the boat is easily handed in tight quarters. Lastly, powered by a single Caterpillar 3116 300 HP diesel engine, she has the power to reach 14 knots and is most efficient at 8 knots. Slow Ya Roll will tick the box for many Great Loop enthusiast, coastal cruiser, and those who enjoy entertaining in comfort.

Denison Yachting is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Murray Yacht Sales. It is offered as a convenience by this broker/dealer to its clients and is not intended to convey direct representation of a particular vessel

Denison Yacht Sales offers the details of this yacht in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of this boat for sale. A yacht buyer should instruct his yacht broker, or his boat surveyors, to investigate such details as the buyer desires validated. This yacht for sale is offered subject to prior sale, price change, or withdrawal without notice. This boat may be listed with another yacht broker.

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Slow Ya Roll HIGHLIGHTS

Yacht Details: 39' Mainship 1998
Location: Madisonville, LA
Last Updated: Jul 4, 2026
Asking Price: $108,000
Maximum Speed: 14 Knots
Max Draft: 3' 0''

Slow Ya Roll additional information

Specifications

Cruising Speed: 8 Knots
Maximum Speed: 14 Knots
Beam: 14' 0''
Hull Material: Fiberglass
Max Draft: 3' 0''
Cabins: 2

Mainship 350 Electrical

8 kw Onan Generator w/ 1057 hrs
12vcd / 110 vac power system
30 amp show power connections
2 - 50' 30 amp show power cords
50 amp splitter

Mainship Electronics:

Garmin GPS 741xs
Standard Horizon Eclips DSC+
VHF marine radio
VDO System Gauges
Remote Control for bow and stern thrusters
Trim tab controls

Upper

Garmin 8212
Garmin AIS600 Transceiver
Garmin GXM52 Sirius Marine Transceiver
Garmin B60 Transducer with Temperture for 8212 and 741X
Garmin GMR24xHD Radar
Garmin GSD22 Sounder Sonar
Standard Horizon Eclipse DCS+VHF
Yacht Thruster bow and Stern control
VDO System Gauges
Rule Highwater Alarm
Battery Monitor BM-1
12V electrical outlets
Simrad AP-11 Autopilot
Windlass control
Saturn AquaMeter Compass
Raymarine Tridata (IO)

Misc

Kisae DC/AC 2000W SineWave Inverter
Island Time Marina WiFi System with Wireless router

Mainship 350 Engine And Mechanical Equipment

Single Caterpillar 3116 300 hp marine diesel engine (3750 hrs)
ZF gearbox
Racor diesel fuel filter with (new) vacuum gauge
Bow Thruster 5hp
SidePower Stern Thruster (IO)
Oil exchanger system
2 - D starting and house batteries (2024)
2 - Air Marine Systems (forward new 2024) 16,000 BTU air conditioners model VCP16
8 Gallon water heater (new 4/2020)

Mainship 350 Deck Equipment

West Marine 10' RIB dinghy w/ cover
Tohatsu MFS6CDS 6hp short shaft 4 stroke (4/2017
Bow pulpit
Delta main anchor with snubber and 230' chain
Spare Delta anchor
Spare Danforth anchor
Lofrans Project capstan with foot switch steel deck fittings
Safety rails and stainless steel deck fittings
Freshwater washdown on bow and stern

Mainship 350 Fire And Safety Equipment

Halon fire suppression system
Portable fire extinguishers
2 - Carbon monoxide detectors (new 10/2019)
Lifesling Life jackets
Electric Horn

Maintenance And Repairs

2022

Air Condition Water Pump Relaced
Forward Webasto Air Conditioner Replaced
Rebuilt Oil Exchanger Pump Impeller
Oil Change and Filters Replaced
Replaced Solar Head Vent & Light

2023

Replaced all Bilge Pumps
Installed Remote Spotlight on Bow
Replaced Forward Above Water Line Through Hull Fitting
Replaced All Engine and Transmission Zincs
Installed Freshwater Accumulator

2024

All Batteries Replaced - House (2) D-Series, (1) Starting, (1) Dinghy Crane, and (1) Thruster
Dinghy Motor Serviced - Impeller, Plug, Fuel Filter
Diesel Engine Alternator and Drive Belts Replaced
Engine Starter Rebuilt
Diesel Engine Turbo Aftercooler Removed, Cleaned, Pressure Tested and Replaced
Valve Lash and Injector Time Adjusted

2025