2018 J Boats J/121

$359,000

Used

Boat in Mattapoisett, MA 02739 US

builtBuilt in 2018
Year the boat was built
model

J/121

Boat model
engine

1 Engine (Yanmar)

Engine type and count
length

40 feet

Overall boat length
fuel

Diesel

Fuel type
material

Fiberglass/Reinforced

Hull material
Nominal Length
40ft
Length Overall
40ft
Length at Waterline
34.58ft
Beam
11.75ft
Max Draft
7.25ft
Displacement
14900lb
Dry Weight
14900lb
Ballast
5600lb
Fresh Water Tanks
42gal
Fuel Tanks
35gal
Hull Material
fiberglass
Hull Shape
monohull
Engine 1
Engine Make
Yanmar
Engine Model
3YM30ACE
Total Power
29hp
Engine Hours
740
Engine Type
inboard
Fuel Type
diesel
Engine Year
2018
Drive Type
sail
Cockpit Shower
Swimming Ladder
Electric Bilge Pump
Oven
Manual Bilge Pump
Marine Head
Hot Water
Depthsounder
Log Speedometer
Radar Detector
Wind Speed And Direction
Repeater
Navigation Center
Plotter
Autopilot
Compass
Gps
Cockpit Speakers
Vhf
Ais
Shore Power Inlet
Storm Jib
Battened Mainsail
Genoa
Asymmetric Spinnaker
Sails

Racing mainsail.  North 3Di RAW, New 2023.  Condition Excellent. Used only for 3 distance races

Delivery mainsail. North 3Di RAW.  2018

 

J1: new 2025:  North 3Di RAW. Never Used. Furlable horizontal battens

J2 new 2025:  North 3Di RAW. Never Used. Furlable horizontal battens

J4 2018: 2018 North 3Di, condition Good. On a Karver furler 

J1 delivery sail:  2021 North 3Di RAW, vertical battens, condition Fair

J2 delivery sail: :2018 North 3Di vertical battens, condition good

Genoa staysail: 2024 North 3Di,  condition excellent

 

A1.5 Asymmetrical: North 2024, condition new

A2 Asymmetrical:: North 2022, condition good

A4 Asymmetrical:: North 2018, condition good

A2 Asymmetrical (oversize): North 2018, condition good

A7 Asymmetrical fractional storm chute on furler, condition excellent 

Spinnaker Staysail: North 3di 2022, condition excellent

Code Zero:  North Helix structured luff, 2022 top down on Karver furler, condition good

 

Storm Trysail 2018: Never used

Storm Jib: 2018 Condition Excellent

Electronics

B&G H5000 Hercules System

Zeus 3 multifunction plotter/displays.  12” at navigation system and 9” at each helm (2022)

4 HV 20/20 data displays mounted on mast

Precision 9 compass with heel sensor

NAC-3 Autopilot Controller 

Jefa 150KgM Autopilot direct drive with AF25 rudder feedback unit

Autopilot remote control unit via blue tooth

Simrad RS35 VHF base unit with DCF

B&G handheld linked to VHF base unit

AIS receiver/transmitter with new masthead antenna and cable 2023

Airmar speed/depth/temp transducer, new in 2025

B&G masthead unit new in 2024 on 5’ carbon fiber wand

Sonic Hub Audio on NEMA2K backbone

EPIRB Ocean Signal, new in 2024

Recent Upgrades

Victron LiFePO4 house battery system new in 2023,  200ah with Blue Tooth BMS Monitoring

Smart Shunt with Blue Tooth State of Charge and load monitoring

New Victron Engine Battery 2023

500 Watt Victron AC/AC Inverter 2023

Electric Cabin Top 2 speed winch

Numerous running rigging items replaced in 2024 & 2025

Removable V-Berth

Upper rudder bearing reinforced at deck 2025

Keel bolts: Visual and torque inspection/check 2024

Companionway storm dodger, Sunbrella by Thurston

¾ Beam offshore spray dodger, Sunbrella by Thurston

Furled Headsail UV Cover, Sunbrella by Thurston

Zippered Wheel Covers, Sunbrella by Thurston

Companionway black out curtain

NEMA 2000/0183 bus data for laptop connection via wireless or ethernet

Life Sling, horseshoe life ring & throw rope

Switlix 8-A man overboard inflatable floatation buoy

Full offshore safety equipment (flares, spare VHF antenna, bungs, etc.)

Negotiable items

Life Raft, 10 man Superior Wave Racer – re-inspection due spring of 2027

10’6” West Marine RIB PVC with fiberglass bottom

6 HP Mercury 4 stroke OB, new in 2025

Carbon Fiber telescoping genoa running pole, 2023, never used

Loos RT-11 rod rigging tension gauge

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. Personal items do not convey with the sale.

Price History

DateEventPrice
3/5/26Price decreased$359,000(-4.3%)
2/28/26No change$379,000
2/19/26Price decreased$375,000(-1.1%)

Videos from South Dartmouth, MA on this 2018 J Boats J/121

Contact South Dartmouth, MA

1 Bridge St., P.O. Box 87082, South Dartmouth, MA, 02748

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Address

1 Bridge St.
P.O. Box 87082
South Dartmouth, MA 02748

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