Contact us

Site map

What Our Customers Say

About Joe DeMers

Beta Marine Diesel Engines

Norpro Isuzu Diesel Marine Engines

Norpro Yanmar Diesel Generators

Norpro Diesel Generators

Kubota Diesel Generators

Residential & Industrial Diesel Generators

Portable Diesel Generators

Alternative Fuel Generators

Sound Marine Diesel News

Recent Repowers with Beta Marine Diesels

The Devon Launch

Questions and Answers on Diesels

Buy a 5KW Yanmar @ Ebay Now


Marine Diesel

Diesel Generators

Alternate Fuel

Portable Diesel

Heat Exchanged
Diesel Generators

Isuzu Diesel

Power Max
Isuzu Diesel gensets

Natural Gas

Diesel Gensets

Keel Cooled
Diesel Generators
Yanmar Diesel

Power Max
Yanmar Diesel


RV/ Camping

Diesel Generators
Spartan Turf

Residential Series
Diesel gensets

Gas Portable


Norpro Diesel Generators

Sound Marine Diesel LLC is  a full line dealer for NORPRO  diesel and alternate fuel  natural gas & propane generators. We have a wide selection of units available, either heat exchanger cooled, or keel cooled, radiator cooled  from 3KW to 120KW, with or without sound enclosures. An extensive list of options ensures your generator will be built to fit your specific requirements.
We also offer radiator cooled residential &  industrial generators for land and vehicle applications, for use with diesel, natural gas, or propane fuel. Portable, air cooled diesel gensets using Lombardini engines are also available, as are portable trash / water pumps. The latter are ideal for dewatering basements, swimming pools, etc.
Discounted pricing on any NORPRO brand product is available from Sound Marine Diesel LLC, please  contact  Joe  
Sound Marine Diesel, LLC  offers shipping of all units from 3KW  thru 120KW , 26HP thru  222HP Heat exchanged, keel cooled + Radiator cooled !

NORPRO  engines  and  generators  carry  the " Best  in  the  Industry"
                          5 Year 5000 Hour warranty.
     Joe will quote you the equipment you need installed or delivered to you at a substantial savings, local Ct River Valley installation, delivery and repair.  Hourly work rates are very competitive. Please contact Joe DeMers to discuss your mechanical or electrical needs, along with a work estimate, at no cost or obligation. We love to talk about your projects, and how best to improve them!
Dealer of the Year Award
Joe DeMers accepts "Outstanding Sales Growth" award from David Sweet. Sound Marine Diesel LLC earned this award for the North East Territory for 2005 , based on customer service and competitive pricing.

"Thank you for your determination I look forward to working with you to provide your customers with Power Solutions in 2006"
David Sweet, Norpro East Haddam, Ct.

SMD has partnered with Morris Marine Wiring & Electrical LLC to better serve our customers. We  offer professional liscensed generator installation for your boat, home, or business. Morris Electrical has American Boat and Yacht Council, ABYC  certification, and E1 certification and licensing for land based applications in Connecticut. We will ensure you get the correct generator for your application, AND have it professionally installed, all at discounted pricing.  Please contact Joe DeMers of Sound Marine Diesel LLC for details.

About Norpro

Norpro is located in East Haddam CT, and has been building quality diesel generators since 1986, with an emphasis on high quality units at reasonable prices. 

Norpro Products

Norpro started business by engineering and building reliable and affordable diesel generators.  Norpro expanded their product line by producing portable diesel gensets, alternative fuel generators, Isuzu propulsion engines, portable pump sets and more. They continue to expand their offerings with innovative products such as the very compact Yanmar generator line.  These units are available in 5KW through 45KW, with or without sound enclosures.

Norpro Performance

Norpro uses only reliable and efficient engines from manufacturers such as Kubota , Yanmar, Isuzu, Lombardini and Farymann (Kubota models are coming soon ! ) for its diesel lines of marine and industrial generators. For the alternative fuel powered models, Norpro uses durable General Motors (GM) and Nissan gas fuel models. Norpro products are designed and built to run reliably for years. Whether it's for your yacht, fishing boat, camp, saw mill, construction site, or powering your home off the grid or during a power outage, you can count on Norpro quality. Each and every unit is live run tested and load bank tested prior to leaving the production facility to ensure quality each and every time.

Follow these links for more detailed Norpro marine & Industrial products information.

More About Norpro

In January 1986 Tom and Anne Mondelci established Northeast Isuzu Engines/Norpro. Mr. Mondelci had introduced Isuzu diesel engines five years earlier and was now setting up a company whose sole purpose was to distribute Isuzu diesel products to the Northeastern United States.

Norpro quickly became recognized as one of the leading distributors of Isuzu diesel products in the United States. Norpro’s growth and recognition were due to Norpro’s core belief in exceptional customer service and satisfaction, and in the selling of outstanding products- Isuzu diesel engines. Norpro grew very rapidly and in 1988 Mr. Mondelci began designing and manufacturing generators under the Norpro trademark. Norpro’s philosophy was simple:

  • Build a product that was dependable and reliable in all kinds of operating conditions
  • Use the best technology available
  • Make a product that was simple to operate and easy to maintain
  • Provide the best pricing in the industry

Norpro had become more than just an engine/parts distributor. It was now a manufacturer and its reputation for building a quality product that was highly reliable and affordably priced fueled its growth to a company that now distributes power generation products all over the world.

One thing has not changed and that is that Mr. Mondelci is still guiding Norpro in its everyday business but now his two sons Thomas and Jared assist him. Norpro has the feel of a small business whose core values of customer service and satisfaction remain firmly in place.

Norpro now manufactures products which address multi-industry power generation needs such as commercial marine, recreational boating, agriculture, forestry, recreational vehicles, homeowners, portable power, standby power, and many more. Norpro continues to build its reputation based upon exceptional customer service and satisfaction and products that are the best in the industry.

Norpro has had many notable achievements since its inception in 1986. Norpro continues to develop and distribute new products, which allow it to appeal to an ever growing customer base. Norpro manufactures a full line of alternative fuel based generators using Nissan and General Motors power plants. Norpro builds portable power generators, industrial and marine pumps along with natural gas standby power units.

In 2002 Norpro has developed sound attenuation devices (sound shields) for its line of marine generators, which allows the quietest generator operation in the marine industry. At the 2003 Miami Boat Show Norpro introduced its newest line of generators powered by the popular Yanmar series of diesel engines. These units are ultra light, ultra quiet, compact and feature the latest technological innovations and features.

Research and design efforts are ongoing, the purpose of which is to allow Norpro to maintain its lead in technology, price and customer satisfaction.

©Copyright 2001- 2006, Sound Marine Diesel, LLC.

Design by Destiny Technology Associates
Get Found  Marinelisting.com