string(6) "360206"

END OF THE LINE1974 Bertram 31 Flybridge Cruiser


Without question the most popular production built sportfisher of all time!

This classic Bertram 31 was re-powered with 330 hp Cummins 6BT5.9's only 300 hours ago. With a Westerbeke generator, fiberglass windshield, island bait tank, up to date electronics all the heavy lifting has been done.

It was this model that launched the Bertram name and company into orbit and made history building nearly 1860 Thirty-Ones from 1961 to 1986. Today the soft ride of the Deep-V C. Raymond Hunt hull design and agility and of an original Bertram 31 are often taken for granted. It's not just about the looks its about the concept much like gravity its a theory but one you can count on when everything else is in question. These fiberglass boats worked so well at sea they have proven their strength time and time again throughout the oceans of the world for the last 60 years! "The sun never sets on the Bertram Empire" was a famous ad campaign that reflected the success of a single design at a time when most boats were built of wood and designed like a shoebox with windows. These boats were put into rigorous service in all types of offshore duty following the initial launch date. The deep-v twenty-one degree dead rise design was born and has since been adopted in one form or another in nearly every offshore performer since.         

Dimensions and Capacities



  • Garmin 2006C GPS Plotter
  • Simrad AP 25 autopilot
  • Simrad 4G radar
  • Standard Horizon MD 150 multi 
  • Standard VHF radio
  • Ritchie powerdamp compass
  • Sony AM/FM/CD  sirius radio
  • Blue Seas Battery bank voltage meter
  • Blue Seas AC distribution panel

Bertram 31

Few, if any, other boats have had such a profound influence on the design of power boats as has the Bertram 31.   The first boat design to use a Deep-V hull, it is arguably the most famous modern boat design ever built, the 31 Bertram has achieved a near cult status, infecting boaters around the world. Designed by Ray Hunt and built by Richard Bertram, the 31 was in production for 25 years.  Many are still on the water and in use throughout the world. 

"The 31 has become a benchmark both in terms of sea keeping ability and rugged fiberglass construction. It has had a reputation from the start as a boat that will take you out and bring you back." (Soundings, May 1994). 

"They went to rogues and royalty, grizzled marlin captains and fair-weather sailors. Many of them are still tearing across the whitecaps..." for customs and border patrol work, search and rescue missions, and, of course, to ferry anglers to offshore fishing grounds. The Bertram 31 launched Bertram Yacht, Inc. when it was introduced at the 1961 New York National Boat Show, essentially as a day boat for Florida sport fishermen. More than three decades later, it is a collectible classic, sought-after, even coveted. According to Soundings, aficionados refer to it as "Bertram Art." The Bertram 31 has aged well, a tribute to its impeccable blood lines and robust construction." 

Few boats on the water today share the same storied history and devout owner loyalty as the Bertram 31. Over the past several years, these mighty little workhorses have enjoyed a resurgence of interest that borders on cult status. All over the world, eager buyers have been snatching up old 31s and restoring them from the hull up, with modern diesel power, generators, air conditioning and all manner of electronic equipment. Many of these renovations end up costing 10 or 20 times what one of the classic hulls brought when it rolled out of the Bertram plant in the early ‘60s. 

The appeal of these boats is a powerful one-two punch. First, they were built so solidly and with such a remarkable hull design that they still perform as well as anything ever built in their size class. In addition, they have a proven track record of catching fish: Marlin includes them in its list of the top 10 sportfishing all time. As a bonus, a freshly painted and refurbished 31 looks the part as well, delivering a combination of classic lines and fishing functionality that has never been successfully reproduced in a boat of its size. 


  • Shore power inlet
  • Statpower Tru Charge 20 amp battery charger
  • Generator - Westerbeke 4kw
  • Electrical Circuit: 110V
  • (6) Group 31 AGM batteries
  • Shurflow Pro Blaster 5.0 rpm wash down pump
  • Shurflow 110 Bait Sentry bait pump
  • Sealand VacuFlush toilet

Cummins 6BT5.9 330 hp

Configuration In-line 6-cylinder, 4-stroke diesel Bore & Stroke 102 mm x 119 mm (4.02 in x 4.72 in) Displacement 5.9 L (359 in3) Aspiration Turbocharged/Aftercooled Rotation Counterclockwise facing flywheel 

  • Highest production 6 liter diesel ever made and is still in production in over 6 countries worldwide
  • The most proven mid-range diesel platform and is used in multiple markets
  • Simple 12 valve mechanical design with parts pricing that no other engine can touch

Estimated Performance 12/18/20

  • 750 rpm 6 Knots 2 GPH 666 nautical mile range
  • 1000 RPM 8.3 Knots 3 GPH 614 nautical mile range
  • 1200 RPM 9.0 Knots 4 GPH 499 nautical mile range
  • 1400 RPM 11 Knots 7 GPH 348 nautical mile range
  • 1600 RPM 13.7 Knots 10 GPH 304 nautical mile range
  • 1800 RPM 17.2 Knots 12 GPH 318.20 nautical mile range
  • 2000 RPM 20 Knots 13 GPH 341 nautical mile range
  • 2200 RPM 24 Knots 16 GPH 333 nautical mile range
  • 2400 RPM 26 Knots 20 GPH 288 nautical mile range
  • 2700 RPM 28.5 Knots 33 GPH 191 nautical mile range
  • The performance estimates cannot be guaranteed due to seas and load factors 

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.



Price: $99,950

Length: 31ft

Builder: Bertram

Year: 1974

Hull: Fiberglass

Fuel: Diesel

Location: Long Beach, CA

Please Note:

Due to product improvements, changes during the model year and/or transcription errors that may occur, information represented within this website may not be accurate at the time of your purchase.
If certain information is significant to your purchasing decision, please confirm the information with your dealer.

HELP Close

Contact us now:Ian McGhie

Geoff was so good to work with. He helped me through every aspect of the buying process which I really appreciated. He kept in touch with me through email, phone calls and texts to make sure I understood everything. Very helpful from the minute I landed with directions and support for hotel room and dinner options in the area to the purchasing paperwork, sea trials and finally handing over the money and receiving the keys. He made it very easy for a first time buyer.

Glen P.

I have bought 3 boats from Stan Miller Yachts. 2 were Cabo Yachts that I purchased directly from Stan Miller, and recently I purchased a Viking Yacht where Stan Miller acted as my broker. I am very satisfied with the help and service that I got from Stan Miller and I would happily recommend them! Very professional and very smart.

Rob M.

Stan Miller helped me sell my Grand Banks 36 Classic and purchase a Grand Banks 38 Eastbay. The process was simple and enjoyable thanks to Ian McGhie who went above and beyond to share his vast knowledge and stay engaged with all involved parties until the deals were complete. Thanks Ian and Stan Miller team, I wouldn’t go anywhere else to buy or sell a boat.

Bill T.

Ian was fantastic from start to finish. He was quick to understand my needs and perspective and worked hard on my behalf. He is knowledgeable, has a great working knowledge of boats and the market. I would wholeheartedly recommend him.

Steve M.

It was my first time using Stan Miller Yachts brokerage services. My boat was docked in Mexico. I needed an experienced broker that understood both U.S. Coast Guard and Mexican government procedures. I chose Blake Oversmith. Blake did a great job in working with potential buyers. We had a very rapid closing. Blake stayed in touch to help the transition to the new owner. I highly recommend the Stan Miller team and Blake Oversmith.

David T.

Ian, Brad and the Stan Miller Yachts team were wonderful throughout the purchase of my first boat in almost 30 years and first major boat. Ian was patient and happy to answer all my questions and make sure that I understood everything and certainly crossed every “t” and dotted every “i”. I can’t say enough about their integrity, support and expertise. Thanks.

Brock W.

About Us

For over sixty years, Stan Miller Yachts has earned a reputation for being one of the West Coast's premier yacht brokerages, offering a wide selection of new and pre-owned yachts.For boat buyers, we offer a dedicated team of experts to assist in finding the right boat for your cruising needs, lifestyle and budget. For boat sellers, we are able to use our cultivated network and targeted marketing reach to find buyers for a wide variety of yachts - from sportfishing battlewagons to cruising yachts and sailboats.

We are proud to be the authorized dealers for Viking Yachts, Sabre Yachts, Back Cove, Kadey-Krogen Yachts, SUMMIT MotorYachts, Mag Bay Yachts and Valhalla Boatworks.

Learn More

Our LatestNews

July 16, 2021 Sabre Yachts Announces New Sabre 43 Salon Express Exciting news from Maine boatbuilder Sabre Yachts, who just announced the newest model in their fleet - the Sabre 43 Salon Express.... See More
July 13, 2021 Viking Yachts Announces New Viking 64C Model Viking Yachts recently announced the newest model in their sportfish yacht lineup, the new Viking 64C. The Viking 64C will debut at... See More
July 1, 2021 Save the Date for the September Boats Afloat Show in Seattle Save the date! The Boats Afloat Show at South Lake Union returns September 16th through the 19th, at Chandler's Cove on South... See More

@stanmilleryachts On Instagram

Stay in the Loop