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2018 SeaPiper 35' Cahoots

$ 195,000

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Cahoots is a 2018 SeaPiper 35' 35 listed for sale with United Yacht Broker Craig Starns. Craig can be reached at 1-813-340-0227 to answer any questions you may have on this boat. United Yacht Sales is a professional yacht brokerage firm that has experience listing and selling all types of SeaPiper Yachts and similar boats. With over 250 yacht brokers worldwide, we have the largest network of boat buyers and sellers in the industry.

2018 SeaPiper 35

She has simple minimalist but adequate systems and her economical engine with just over 200 original hours only sips fuel.

2018 SeaPiper 35

"CAHOOTS" is a unique very economical and "Salty" looking mini trawler for a couple perhaps with a child along for a leisurely waterway cruise or Great Loop adventure. She is also capable of long-range voyaging with a stalwart and experienced crew and has made a round trip voyage from Florida to the outer reaches of the Abaco chain of the Bahama Islands. She has simple minimalist but adequate systems and her economical engine with just over 200 original hours only sips fuel.


  • Price USD:$ 195,000
  • Builder:


  • Model:


  • Year:


  • Location:

    St. Petersburg, Florida, United States

  • Type:

    Power Yacht

  • LOA: 35 ft 11 in
  • Display Length: 35 ft
  • Beam: 8' 6"
  • Yacht Category


  • Water Capacity: 140 gals
  • Fuel Capacity: 160 gals
  • Engine Details: Beta Marine 85 4 Cylinder
  • Engine 1: 207.00 HRS 83.00 HP
  • Engine Fuel: Diesel
  • Days on Market:

Vessel Walkthrough:

From forward, moving aft: The forward cabin contains V-Berths and the head; Up three steps, to the midship cockpit, with storage and seating on each side under a full canopy. This is a novel and interesting feature - a pleasant place upwind at anchor and away from the exhaust when under way; Through a sliding door into the pilothouse and salon; Down two steps to the galley; and Up two steps to the aft cockpit, with a seat on each side and opening transom doors.

Main Salon:

In the salon the helm station is to starboard, with an L-Shaped settee is to port around two sides of a dining table. Aft of the helm station is a raised chart table with storage under. The table can be lowered, and the settee converted to a berth. The fixed side windows offer views outside when seated. The pilothouse is ventilated with an overhead hatch, two portlights aft, a custom top-hinged window in the forward pilothouse door and a fan. The salon and galley share an air-conditioning unit.


The galley has a deep stainless-steel sink and Corian countertops, a two-burner propane cooktop, an Isotherm C130 4.6 cubic foot refrigerator, and numerous storage lockers, shelves and drawers. Ventilation is from four portlights, the hatch to the aft cockpit and the shared ventilation with the salon.

Master Stateroom:

The master and only stateroom is in the forward cabin, which is separated from the pilothouse and salon by the midship cockpit. In addition to the V-Berths and head, there is a hanging locker, a locker on the forward bulkhead, two deep drawers between the berths, full-length shelves on each side and stowage under the V-Berths. For ventilation there is an overhead hatch, three opening portlights in the forward cabin and one in the head, solar vents in the head and forward cabin, and a fan. The forward cabin has its own air conditioning unit.


At the bow, a 15kg Rocna anchor is secured on a Kingston bow roller, having a rode consisting of 125' of 5/16" Group 43 galvanized steel chain spliced to 125' of 9/16" 8-strand braid, controlled by a Maxwell R-8 windlass/capstan aft of a Maxwell chain brake.

Both cockpits are covered by canopies. The midship cockpit has a hose bib and hot/cold water shower. An Engel 58 quart cooler functions as another seat, or as a table, and stores ice, drinks, and vegetables on a rack below the opening top. A door on each side of the midship cockpit allows easy access to dinghies and floating docks. Under the seats there is storage for fenders, hoses, dock lines and life jackets.

There are two hatches in the midship cockpit sole. The aft hatch opens to the forward end of the engine space for access to fuel filters, the lube oil filter, the raw water pump impeller, oil and coolant fills, storage, and the seacock for the engine raw water intake. The forward hatch opens to a compartment containing the batteries, the inverter/charger, the solar charge controller, other electrical equipment, pumps, storage and two seacocks (one for the head discharge, the other for the head intake, air conditioning pumps and the raw water washdown pump).

At the stern cockpit, rails on the galley roof extend aft to form davits, and the transom doors open 180 degrees so as to make a convenient place from which to swim or to handle and board a dinghy. A swimming ladder attaches off the stern. The port seat contains one 20 lb. and one 10 lb. aluminum propane tank, while the starboard seat has storage underneath. The aft cockpit has a hose bib to allow washdowns and rinsing of salty feet and swimmers. A hatch in the aft cockpit sole opens for storage and access to steering gear.

Electronics and Helm:

The steering system is hydraulic. At the helm station, there is a Garmin 1040 plotter/sounder, an Icom VHF with Digital Selective Calling and AIS (receive only), a Garmin autopilot control and controls for the electric bow thruster and anchor windlass. The main electrical panel for 12V and 110V is within the helm station. Above the helm station are circuit breakers and switches for the horn, lights, VHF radio, bow thruster and windlass. On the port side of the pilothouse, above the forward window, are Gauges on the port side of the pilothouse, across from the helm station, show fuel, water and holding tank levels, the house battery bank state of charge and net input or output, and solar panel output.


"CAHOOTS" does not have a generator. The 415Ah house bank consists of two 6V Rolls AGM batteries in series, which are charged in three ways: either (1) by shore power, through a 50' SmartPlug cord through a Samlex 2000W inverter/charger; or (2) by the large-frame 175 A alternator on the engine, output from which goes to a Wakespeed S500 external regulator; or (3) by a 590W solar array above the midship cockpit canopy through a Victron solar charge controller.

A separate Optima 34/78/1000 (12V/800 cold cranking amps) battery starts the engine. It is combined with the house battery bank for charging from the same three sources. If the starting battery is discharged, a switch disconnects the starting battery from, and substitutes the house battery bank on, the starting circuit.

All electronics, lights, fans, pumps and the refrigerator operate on 12V. The inverter produces 110V power for household appliances, chargers and the like, available through single plugs in the galley and forward cabin, and through three plugs in the salon.

All interior lights and navigation lights are LED. There are red/white overhead lights in the galley, salon, head and forward cabin, four reading lights in the salon and two in the forward cabin, and task lighting in the galley.

A galvanic isolator is installed at the SmartPlug receptacle for the protection of underwater metal parts of the boat.

Engine Details:

The engine space is under the salon and continues forward under the aft portion of the midships cockpit. Access to the forward end of the engine (and to the remote lube oil filter, fuel filters, oil and coolant fills, the lube oil dipstick, and the raw water pump) is through the aft hatch in the midship cockpit sole. Access to the aft end of the engine (and to the stuffing box, marine gear oil filter and dipstick, and lube oil discharge pump) is through a hatch in the salon sole.

The marine gear is a ZF model 45 hydraulic unit having a 3.1:1 reduction ratio. The engine drives a 1 and3/4" stainless shaft which passes through a conventional stuffing box (made by Buck Algonquin) to a four blade 23 X 17 Michigan propeller.

The seller replaced the original waterlift muffler fabricated and installed by the builder with a stock Vetus waterlift muffler, a Vetus anti-syphon valve and a discharge hose looped to create a greater drop to the exhaust outlet.

The Isotemp hot water heats 5 gallons of water using shore power or using engine coolant when the engine is running.

Construction Details:

Nidacor (or equivalent) sandwich construction for deck, forward cabin trunk, pilothouse, internal bulkheads and hull to just above waterline, where the hull becomes solid fiberglass.  

Equipment List:

Air Conditioners:

There are independent reverse-cycle air conditioning/heating units in the forward cabin (Dometic ECD6k/6,000 BTU) and in the pilothouse (salon/galley) (Dometic ECD 10k/10,000 BTU).

Anchors and Rodes:

(1) 15kg Rocna on Kingston KR 1015 bow roller, with 125' Group 43 5/16" galvanized chain, spliced to 125' of 8-strand nylon braid 9/16", stowed in the bow locker.

(2) 25lb CQR, stowed under starboard V-berth. Chain is under port V-Berth, 200' 3-strand nylon 5/8" stowed under port locker in aft cockpit.


Garmin Reactor 40; system serial #5E1027971; hydraulic pump SN 5RK00445; rudder feedback, SN 2LB013585.

Bow Thruster:

Vetus 12V.


House bank made up of two Rolls S6-460 AGM batteries in series, giving 12V/415Ah (at 20 hour rate).

Start battery is an Optima 34/78-1000 having 800 cold cranking amps.

Both house and start batteries stored in boxes under the forward midships cockpit hatch.

The batteries are combined with a ML-ACR Battery Combine Relay - Blue Seas system #7622

A Balmar SG-200 battery monitor system shows the condition of the house bank (state of charge, rate of charge/discharge and other information) on a gauge above the forward port pilothouse window.


Ritchie 4", mounted below forward/port pilothouse window.

Engine, Marine Gear, Alternator and Remote Charge Controller:

BetaMarine 85 4 cylinder diesel producing 83 hp at 2800 rpm. Engine has a small turbocharger, Engine was made and tested in 2016 but installed and started for the first time in late 2018. Engine hour meter reads 207. Displacement is 3300cc. SN is 8FE1700.

Marine gear is ZF 45, sn 20257445 having a 3.1 to 1 reduction.

Alternator is a Mahle with rated output of 175a. The internal voltage regulator is removed and replaced with a Wakespeed WS500 regulator and charge controller which produces the four stage charge recommended for AGM batteries. There is a spare.

Fuel Tank Selector Valve:

Groco FV 65038, located at forward end of engine compartment. Allows fuel to be drawn and returned from port tank, starboard tank, or neither tank.

Galley/Head Fixtures:

Sink, washbasin, and faucets made by Scandvik.


Gauges showing fuel levels in the port and starboard fuel tanks are mounted to port near the forward pilothouse door; Gauges above the forward port pilothouse window reflect the level of solar charging, the condition of the house battery bank, the water level in the main tank and the level of the holding tank.

Light Fixtures:

Overhead lights in head, forward cabin, pilothouse and galley are Hella EuroLED 150 white/red.

Reading lights (four in pilothouse, two in forward cabin) are Hella Ponui.

Lights over galley counters are LED.

Nav/anchor lights are Hella NaviLED.

Overhead Hatches:

Vetus Magnus 4747 (18.5" x 18.5") hatches are installed in the overhead in the pilothouse and forward cabins. Each overhead hatch has an insect screen.


Samlex EVO-2212 (2200W/100A) is mounted near the batteries in the forward compartment under the midship cockpit. It receives output from shore power, the alternator or the solar array and charges the batteries. It also takes 12V power from the house battery bank and inverts it to 110V.


Garmin GPSMAP 1042xsv having 10" screen, SN 60Y003313; transducer VDR-GEM B744V-8G. The transducer is below the hatch in the galley sole.

Propane Tanks:

20 lb. and 10 lb. made by Worthington. Purchased new in 2018. The tanks, regulator and propane supply solenoid are under the port seat in the aft cockpit.


Indel Webasto Marine Isotherm C130 operates on 12V, has a volume of 4.6 cubic feet.


Vetus RCTOPBG single lever gearshift and throttle, uses cable to engine.

Spares and Supplies:

There is a spare 175a alternator, a Raritan Ph II pump, and various fuses stored off the boat. Aboard the boat are replacement fuel filters, lube oil filter, a marine gear oil replacement filter, raw water pump impellers, and engine zincs, together with supplies of lube oil, coolant and hydraulic fluid for the steering system. Battery operated strobe/electronic signal flare.

Solar System:

The solar array consists of two 295W SolarWorld rigid-frame panels mounted above the midship cockpit canopy. Each panel has 60 monocrystallinge cells with the following characteristics: Voc 40.0V; Vmpp 31.5V(DC); ISC 10.10A; module efficiency 17.59; power sorting 0Wp/+5Wp; max system voltage 1000V (DC); ISO 9001, 14001 certified. Each panel weighs 39.7 lbs. A switch above the helm station allows the output to reach, or not to reach, the charge controller. When the switch is on output from the panels goes through a Victron charge controller, which reads the state charge of the batteries and provides charging current as needed.

A Victron controller monitoring system reflects the state of the house bank and the level of charging current flowing to the house bank.


An 18" stainless steering wheel drives a Vetus hydraulic steering pump (HTP 4210R) which activates a Vetus steering ram (MTC 7210) below the aft cockpit.


Dickinson 00-2BP two burner propane cooktop. One burner is sized for pots and pans from 6" to 10" in diameter; the other burner is sized for pots and pans up to 6" in diameter. Brackets holding pots/pans in place are in the drawer above the refrigerator.


Two stuffing box wrenches stowed aft in the engine room, a box wrench fitting the engine primary fuel filter hanging forward/starboard in the engine room, and Allen wrenches for the flagstaff socket retaining screw and the marine gear oil filter housing under the forward end of the settee. Laser digital infrared thermometer.

Utensils and Galley Stuff:

Some remain in the galley drawer above the refrigerator.

VHF Radio:

ICOM M506 with Digital Selective Calling and AIS (receive only), SN 21007448/

The AIS is integrated with the plotter. Handheld portable VHF.

Water Heater:

Indel Webasto Isotemp 5-gallon water heater works off 110V shore power and coolant when engine is running.


Vetus/Maxwell RC8-8 (1,000W/12V) with chain wheel and rope capstan; there is a windlass control at the helm station, and a handheld control which plugs into a receptacle in the bow locker. A chain brake is mounted forward of the windlass to take the strain from the rode.

Owner's personal effects and tools not otherwise listed.

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.

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.

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