Tiara Yachts – 3100 Open

Massachusetts, United States

Notable upgrades and service recently done including:

  • 1000 hour service just done! (Over $17,000 spent on engines)
  • New AC system 12,000 btu
  • Lumitec underwater lights
  • New hot water system 
  • New salon and cockpit flooring covers
  • Upgraded electronics
  • New canvas
  • New windlass

This Tiara features the much desired Cummins 6BTA 5.9 300 HP diesel powerplants( very rare in the 3100 series).  As well as a generator that has been serviced, and is ready to go!

Engines have approximately 1000 hours and have been extremally well maintained (1000 service compleated over the winter with over $17,000 put into these engines).

Manufacturer Provided Description

The 3100 Open’s standard exterior features include a stepped cockpit floor, transom/boarding door, tilt-away helm station (with over 2 square feet of space for electronics), and helm and companion back-to-back seats.

The interior is expansive, with outstanding 6’4″ headroom – making the open cabin arrangement a large, livable, and comfortable retreat for 4.

Complete with fully equipped galley, dinette/berth, private forward berth, and private head. Six opening ports, and three overhead hatches with screens, provide excellent ventilation and light throughout.

Options Include

  • Cruising Radar Antenna Arch
  • Swim Platform with built-in Ladder
  • Curved Companion Seat
  • Generator
  • Honey Ash Interior
  • Air conditioning
  • Teak and Holly style Sole

Cockpit / Helm

The cockpit on the 3100 Open is spacious and versatile, whether you plan to fish, cruise, or both. Standard features include a navigation chart area and drink holders, the Tiara “heads up” fiberglass tilt away helm station with full flush mount electronics and a sliding companionway door with lock and built-in screen.

Seating is a back-to-back helm seat with locker storage, and a back-to-back companion seat, also with storage and a cooler. 



The cabin on the Tiara 3100 Open has everything you need for a weekend getaway or an extended vacation. The Owner’s stateroom has a double berth with fitted quilt and filler cushion. There are three storage compartments under the berth and two storage compartments above, as well as a hanging locker to the port side with a large storage area above it.

The large U-shaped convertible dinette sits to starboard, directly across from the galley.

The galley features recessed double burner cooktop, microwave/convection oven, refrigerator/freezer, and a deep stainless sink with pressure water system. There are also three utensil drawers, two dish lockers, and additional storage. The easy cleaning all fiberglass head features two vanity storage compartments, mirror, S.S. sink, and electric head.

Electrical System

Generator Northern Lights 5kw

The electrical system on the 3100 Open features a custom 12V and 120V master distribution panel with plexiglass door, amp meter, reverse polarity indicator, one 30 amp 50′ shore power cord with adapter, a two bank 12V battery system with gel cell batteries, and battery charger.

Standard Safety Equipment

Standard safety equipment includes:

  • Cockpit lighting
  • Automatic bilge pumps
  • Hand-held fire extinguishers
  • Coast Guard safety and medical kit
  • 4 Tiara life vests, and the certification from the NMMA, U.S.C.G., and CE (European.)

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.


Basic Boat Info

Tiara Yachts
Boat Hull ID
Has Hull ID


30.75 ft
Length Overall
30.75 ft
12 ft
Dry Weight
12,300 lb
Cabins Count

Engines / Speed

Engine #1 Specs:
  • Make : Cummins
  • Model : Cummins 6BTA 5.9
  • Fuel : Diesel
  • Engine Power : 300 hp
  • Type : Inboard
Engine #2 Specs:
  • Make : Cummins
  • Model : Cummins 6BTA 5.9
  • Fuel : Diesel
  • Engine Power : 300 hp
  • Type : Inboard
Total Engine Power
600 hp


Fuel Tanks
Fuel Tank Capacity
246 gal
Water Tanks
Water Tank Capacity
1 gal
Holding Tank Count
Holding Tank Capacity
1 gal


Heads Count
Boat Class
Express Cruiser

Additional Info


Cell: 774-212-5485

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