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Product review – Kohler 15KW, 1-Phase Diesel Marine Generator 16EKOZD

diesel marine generator

Previously we have in detail analyzed Kohler’s diesel marine generator product line with its key characteristics, its versatility, and the reasons why it is regarded as the leading product on the market for marine power generators. (If you want to read the referred article, click here: IS A KOHLER MARINE GENERATOR A QUALITY PRODUCT?).

In this piece we will take a closer look at KOHLER 15KW, 1-PHASE DIESEL MARINE GENERATOR WITH SOUND SHIELD ENCLOSURE | 16EKOZD.  The aim is to provide you with detailed information that will serve you as reference when deciding whether to proceed with product purchase in our online store. (Below we will give you the direct purchase link).

The outstanding features of the Kohler marine diesel generator 16EKOZD.

diesel marine generator

The functioning power of the Kohler 16EKOZD marine diesel generator has evolved over time as the manufacturer (Kohler) has been optimizing and improving its production lines. Previously operating with the “Yanmar” brand engine, known for its excellent performance and quality, today, manufactured with Kohler engines, the product unifies the design premises of 24EKOZD, 21EKOZD, 14EKOZD and 16EKOZD products.

One of the most outstanding features of the product is precisely its robust motor, with highly attractive cost/value ratios compare to similar products available on the market. This is ultimately a competitive advantage for the user including reliability, long-term life, maintenance cost and finally the peace of mind that your boat will always operate on high-end, reliable and clean energy.

Below find a video that demonstrates the Kohler engine assembly line to give you a better idea of the functioning, technology and engineering behind the Kohler 16EKOZD marine diesel generator:


  • Frequency 60 Hz
  • kW 16
  • Controller Decision-Maker(R) 3500 Controller
  • Fuel Type Diesel
  • Alternator Type 4-pole, rotating-field
  • Engine Manufacturer Kohler
  • Remote start 12-pin connector
  • Class H insulation
  • Single phase and three phase models available
  • Voltage regulation of ±1.0%
  • Radio suppression
  • Outstanding motor-starting capability
  • Directly connected to the engine, the generator has sealed precision ball bearings with a precision-machined steel sleeve in the end bracket to prevent shaft misalignment and extend bearing life.


  • Heavy-duty construction
  • Certified by the Environmental Protection Agency
  • (EPA) to conform to Tier III marine auxiliary
  • Diesel fueled
  • Three cylinders
  • Four cycle
  • Electric fuel lift pump
  • Lifting eye

Small, quiet and reliable. The Kohler diesel marine generator 16EKOZD gives you everything you need to power your journeys from sea to sea.

How many AC appliances can I power on my boat with the 16EKOZD?

Some experts conclude that the process to determine the size of a genset is to add up the total wattage of the AC appliances you plan to be using simultaneously, and then divide by 1,000 to get the kilowatts needed to power them…but this calculation is INCORRECT!

All appliances have what is called a transient regime, which is a peak energy consumption at the time of startup. That is why we always recommend calculating twice that figure, to prevent your generator set from running fully loaded all the time. Overloading the genset not only stresses your engine, but also places a high demand on the alternator side, causing it to overheat, reduce its performance and shorten its lifespan. All this adds to the cost of unnecessary repairs. A generator set should run on between 35 and 80 percent of its maximum load. Aiming for 50 percent load adds room if your crew uses more AC than you planned, or for the extra demand when electric motors kick in. At startup, a motor may momentarily draw two to three times more current, than when it is running. Sometimes it’s more: For example, a typical 12,000 Btu air conditioner uses about 9 amps of AC for maximum cooling, but its starting current draw can be more than 50 amps. Air conditioners switch on and off continuously, so you want to have a little extra power available. Same goes for refrigerators, although they do not consume as much as the electrical network or air conditioning.

So let’s do an exercise based on what we outlined above with the values in the following table, to showcase standard consumption of standard AC appliances that we use in our boats:

DeviceConsumed power (Watts)

Diode Lighting


Fluorescent Lighting


Incandescent Lighting


DVD Player




Ice Maker


Home Theater




DC Convertor


Seakeeper 3 (30-39′ vessel)


Electric Stove




Air Compressor1,500

Coffee Maker


Electric Frying Pan


Electric Water Heater


Microwave Oven




Rooftop AC


Seakeeper 5 (40-49′ vessel)


Seakeeper 9 (50-59′ vessel)


Seakeeper 6 (40-49′ vessel)


Battery Charger


Seakeeper 16 (60-69′ vessel)


Seakeeper 26 (70-84′ vessel)


Seakeeper 35 (85’+ vessel)


As an example, with the marine diesel generator 16EKOZD you can simultaneously power the following:

  • 1 Seakeeper 5 (40-49′ vessel)
  • 10 Diode Lights
  • 1 Refrigerator/Freezer
  • 1 Icemaker
  • 1 home theater
  • 3 Computers
  • 1 Rooftop ACs
  • 1 TV

This gives a total simultaneous consumption of 7,325 watts. You will still have 50% of the total capacity of your marine diesel generator to be able to use occasionally to power, for example: the electric stove, the microwave, the coffee machine, the electric water heater and to be able to withstand the current peaks generated by the transitory regimes that we commented previously.

A diesel marine generator with 15kw and versatility at your fingertips

One of the main features of Kohler diesel marine generators is the ability to be placed in parallel with another Kohler generator to boost the overall power (see diagram below). The 16EKOZD diesel marine generator fully complies with this feature. This gives you flexibility with your investment in 16EKOZD generator for uninterrupted use even when your requirements change. This can happen either because you change your boat or because the power requirements change due to increased load in your boat. With this characteristic of the marine diesel generator 16EKOZD, you will be able to design how and in what situations to use your generator today, tomorrow and always, regardless of whether your needs change over time.

Kohler Marine Generator 2

The Decision-Maker® 3500 Controller, incorporated in the Kohler Diesel Marine Generator 16EKOZD, allows you to parallel two or more KOHLER® generators with a single communication wire. No oversized switchgear. No costly add-ons. See the video below:

At Brags & Hayes Generators we strive to guarantee you the best prices on the market, the best pre-sales service and the best after-sales service, so that your investment in energy pays off over time. Remember, it’s not simply buying a generator. What truly matters is that you buy what suits your needs and how the product serves you after your purchase. 

If you wish to buy this Kohler Diesel Marine Generator 16EKOZD for your boat, at the best market price and with the best technical support, below you will find a direct purchase link for this high quality product in our online store!

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