2008 Mainship 40 Trawler Boat in Warwick, RI 02889 US

2008 Mainship 40 Expedition Trawler - "Kim Katie III"
Location: Warwick, RI

"Kim Katie III" is a turn-key, Great Loop Veteran representing the highly desirable Mainship 40 Expedition Trawler series. The 40 Trawler shares the same prestigious pedigree as the best-selling 39, but offers many distinct upgrades all her own. Mainship's design team paid special attention to maximizing accommodations, extending the length a full three feet to deliver an especially spacious interior design and an expanded flybridge.


Only a 3-owner boat, this vessel was purchased by her current owners in Southport, NC, in May 2024. She features a meticulous, fully documented ownership history with all maintenance records available since 2017. Following a major mechanical top-end overhaul and extensive recent upgrades (2024-2026), she is fully turn-key, exceptionally clean, and ready for her next captain's long-range cruising adventures.


Vessel Specifications

• Engine: Single Yanmar 6LY3-UTP (1,976 Hours)
• Generator: Kohler 9kw 120/240v (~1,300 Hours)
• Maneuverability: Bow & Stern Thrusters for effortless docking
• Shore Power: Fore & aft power cords for flexible slip configuration

Recent Upgrades & Repairs (2024 - 2026)
The current owners have spared no expense maintaining and upgrading the vessel to premium standards:

Mechanical & Engine Room:

• Top-End Engine Rebuild (Nov 2025 - Feb 2026): Initiated by a slow coolant leak. Includes machined head (6 thousandths off spec), completely rebuilt injectors, and brand new Yanmar exhaust/intake valves, valve springs, and valve seats.
• New Yanmar Turbo (2/25)
• New Yanmar Wet Exhaust Mixing Elbow (4/25)
• Replaced Yanmar ECM (5/24)
• Complete removal and comprehensive service of all coolers (5/24)

Electrical & Systems:

• New Pronautic 1250P Battery Charger
• New batteries (4x 8D marine batteries) (5/26)
• New Jabsco quiet electric flush head and all-new sanitation hoses (9/24)
• Scheduled Maintenance: Fuel and tanks to be fully polished (9/26)

Deck, Canvas & Interior:

• New Sunbrella Bimini Top (2/25)
• New Flybridge Kenyon 240V Stainless Steel Electric Grill (9/24)
• New heavy-duty Mantus Rocna Galvanized 55lb/25kg anchor, custom bridle, and chain hook
• New premium carpeting installed in both Master and Guest staterooms

Prior Owner Significant Maintenance & History (> 2017)

• New Isinglass enclosure (3/24)
• Replaced generator battery (6/23)
• New galley Microwave (1/20)
• Comprehensive Generator rebuild (6/19)
• New Vitrifrigo Refrigerator/Freezer (11/17)
• Kato inflatable Davit system (10/17)
• Note on Vessel History: The boat sustained minor cosmetic/canvas damage during a 2021 North Carolina hurricane. All repairs were professionally executed to high standards, including newly replaced isinglass, seamless cosmetic Awlgrip fiberglass repair, and stainless rail repairs.

Accommodations & Layout

• Flybridge & Summer Kitchen: Features an expanded bridge layout with seating aplenty, two tables perfectly suited for dining outdoors, and a spectacular summer kitchen equipped with a newly upgraded stainless grill.
• Helm Station: The upper helm station is well-appointed, offering an ergonomic layout with ample room for all your gauges and electronic navigation options.
• Salon & Entertainment: Premium aluminum glass-paneled doors open from the aft deck to flood the interior with light. The raised salon and galley are beautifully crafted in warm, rich cherry wood. Unwind on the contemporary sofa (with optional convertible sleeper) while watching the flat-panel TV, or tune into the integrated Bose stereo/DVD system.
• Staterooms: Sleep comfortably in a forward master stateroom boasting a queen-size island berth, large hanging lockers, deep drawers, and built-in cabinets. The separate guest stateroom offers twin berths, a hanging locker, and independent storage cabinets.