36 Mainship 1988 Boat for Sale

Sea K Sister

ASKING PRICE: $37,900 Watch Price

Guilford, CT

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Last updated May 14, 2026

Sea K Sister Boat | 36' Mainship 1988

"Sea K Sister" is a Mainship Nantucket 36 Aft Cabin model. It offers a lot of boat in just 36 feet. The air-conditioned interior has two staterooms both with manual heads with showers. The aft stateroom has a centerline double bed and the forward stateroom has traditional V-berths. The salon has a helm station, large windows on three sides and a convertible sofa. The galley and convertible dinette are located two steps down from the salon. With both the sofa and dinette converted the boat can sleeps up to 8 people. The flybridge has a full helm station with enclosure. Aft of the helm is the large aft deck with room for abundant seating. She is currently hauled out for winter storage and shrink-wrapped in Westbrook, CT and can be shown by previous appointment.

Denison Yachting is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Brewer 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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Sea K Sister HIGHLIGHTS

Yacht Details: 36' Mainship 1988
Location: Guilford, CT
Engines: 2 x 270.00hp (Gas/Petrol)
Last Updated: May 14, 2026
Asking Price: $37,900
Max Draft: 3' 0''

Sea K Sister additional information

Specifications

Beam: 13' 0''
Hull Material: Fiberglass
Max Draft: 3' 0''
Cabins: 2
Heads: 2

Electrical System

12 Volt DC Perko rotary Battery switches
Main DC panel
DC branch breakers in main electrical panel at each helm
3 group 24 Batteries
Battery charger Newmar Phase Three 12 volt Battery charger
AC shore power system 120 volt @ 60 Hz
2 shore power inlets 30 AMP with shore power cords
The Onan generator is inoperable and will be sold as is
Hot water heater

Marine Electronics

Northstar 951 and Northstar 958 GPS /Chart plotters
Simrad Roberson Auto pilot
Standard Horizon VHF marine radio
Standard Horizon digital depth gauge
Ritchie Compass
Maxxima Stereo/cassette player with speakers

Galley Equipment

Danby upright refrigerator/freezer
SS galley sink wth hot & cold water supply

Mechanical Disclaimer

Engine and generator hours are as of the date of the original listing and are a representation of what the listing broker is told by the owner and/or actual reading of the engine hour meters. The broker cannot guarantee the true hours. It is the responsibility of the purchaser and/or his agent to verify engine hours, warranties implied or otherwise and major overhauls as well as all other representations noted on the listing brochure.