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KOHLER PRO6.4 Spec Review

Picture 1 of the KOHLER PRO6.4
Picture 2 of the KOHLER PRO6.4
Picture 3 of the KOHLER PRO6.4

The KOHLER PRO6.4 is an open frame portable generator with a rated wattage of 5200 W and a starting wattage of 6400 W.

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Description

Zoom on the KOHLER PRO6.4

In summary, the KOHLER PRO6.4 is a portable generator especially useful for:

  • RV travellers looking for even more independence
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
  • Professionals in need of safely powering high-intensity work or lighting equipment

In the sections ahead, the power characteristics, availability of various outlets, the portability and any additional features of the device shall be discussed, including its emission compliance information.

Power & Run Time

The KOHLER PRO6.4's build contains a gasoline-fueled 277 cc KOHLER Command PRO® OHV 4-stroke engine. With a 120/240V output, it gives a running wattage of 5200W and also a peak wattage of 6400W.

At a noise rating of 73.2 dBA (just slightly more noisy than a shower), the generator offers the possibility to start the device via a conventional pull-start mechanism.

With a full tank, the PRO6.4 can operate for around 15 hours at 50% load (fuel consumption around 0.53 GPH), thanks to its fuel capacity of 8 gallons. Refilling the fuel tank is facilitated by KOHLER’s Accu-Fill™ technology. It offers a 45% larger angled fuel inlet, which allows for an easier and safer pouring of gasoline as well as less spilling.

Since the PRO6.4 has a somewhat high THD (<6%), it is advisable to not use it for the powering of sensitive electronic devices.

The generator will allow you to simultaneously power various devices, for example:Note: Not all of these items may be able to start at the same time. These examples are based on a maximum load of 75 % and on wattage estimates. Use our wattage calculator to find out if this product will be suitable for your needs.

Outlets

The control panel provides the upcoming 6 AC outlets:

Two Duplexes 120V 20A (5-20R) GFCI
120/240V 30A (L14-30R) receptacle
120V 30A (L5-30R) receptacle

This KOHLER generator isn't quite RV Ready, but it features an L5-30R receptacle, allowing a simple RV connection through an L5-30P to TT-30R adaptor. Besides, since the PRO6.4 bears a twist-lock L14-30R receptacle, it is transfer switch ready: it is easily connectible to a breaker box and can power your home in case of a power outage.

Portability

The KOHLER PRO6.4 has the following dimensions: L29.4 x W21.4 x H22.3 in. In combination with its conventional, open frame design, they provide support and allow the generator to be raised above ground level. The featured design is ideal for the outdoors and all tough environments.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 174 lbs. However, this lack of maneuverability is compensated by a wheel kit (⌀10") and a folding handle, with which you can conveniently displace it, once it's on the ground.

Features

Panel of the KOHLER PRO6.4

The PRO6.4's control panel

An illuminated data center (Maintenance Minder), one of the features of the PRO6.4’s control panel, gives you information on the lifetime run hours, and thus, is helpful for the monitoring of its activity and status.

In addition to this info, when its oil levels are insufficient, you will be informed by the featured light indicator.

The generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.

From a security point of view, the generator is equipped with an automatic low oil shut-off (Oil Sentry™ technology) and an overload protection (circuit breaker), giving you a peace of mind during use.

Besides the features previously mentioned, accessory-wise, the KOHLER PRO6.4 comes with the usual documentation and user manual needed to get you promptly started.

Emissions

The KOHLER PRO6.4 is EPA-approved and CARB-compliant. Therefore, its sale and purchase are permitted in all of the 50 states, including California.

The KOHLER PRO6.4 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the KOHLER PRO6.4 compare to generators of similar power (between 4500 and 5500 W).

  • With a dry weight of 174 pounds, the KOHLER PRO6.4 finds itself in the expected weight range for generators able to produce between 4500 and 5500 rated watts. If you are concerned by weight, one of the champions in the above mentioned power range is the WEN 56500, with a dry weight of just 119 pounds.
  • When compared to devices able to produce a similar running wattage, this generator and its lowest emitted noise of 73.2 dBA is on the noisier side. If you are concerned with noise, check out the Honda EU7000iS, which is one of the least noisy generators in its power range, with a noise rating of just 52 dBA.
  • Thanks to an impressive running time of 15 hours at 50% load, the PRO6.4 benefits from one of the highest run time of generators of a similar output.
  • The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. This generator, with an estimated fuel consumption of just 0.53 GPH (gallon per hour) at 50% load, is one of the more fuel efficient generators, for the previously mentioned wattage range. If you wish to acquire one of the most gasoline efficient products of this power range, the Westinghouse WGen5500, with a fuel consumption of 0.44 GPH could be in your good books.

Price comparison

As you can see from this dynamic chart, when compared to other 4500-5500W generators, the KOHLER PRO6.4 is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • High run time
  • Fuel efficient
AVERAGE SPECS:
  • Decent weight (174 lbs)
WEAKNESSES:
  • No electric start
  • No spark arrestor
  • On the noisy side (73.2 dBA)

Do you own the KOHLER PRO6.4 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Where to buy the KOHLER PRO6.4?

You can easily buy your KOHLER generator online. You will benefit from a convenient delivery and avoid carrying the heavy package yourself. Here is a reliable online seller:
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Features and Specifications

General

InverterNo
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine277 cc KOHLER Command PRO® OHV 4-stroke
Starting systemRecoil

Power

VoltageAC: 120/240V 60 Hz
Running watts5200 W
Starting watts6400 W
Running amps (@120/240V)43.3/21.7 amps
Peaks amps (@120/240V)53.3/26.7 amps
Run time @50% load15 h
Run time @25% loadN/A

Features

GFCI outletsYes
Covered outletsNo
Automatic Voltage RegulationYes
AC outlets2x Duplex 120V 20A (5-20R) GFCI
1x 120/240V 30A (L14-30R)
1x 120V 30A (L5-30R)
DC outletsNo
Data centerLifetime run hours
IndicatorsLow oil
Fuel tank8 gal
Fuel gaugeYes

Misc

Weight174 lbs
Dimensions (L x W x H)29.4 x 21.4 x 22.3 in
Noise (lower limit)73.2 dBA
THD< 6%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorNo
NeutralBonded to frame
Accessories includedNo
Warranty3 years

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

About KOHLER

Kohler Co., founded in 1873 by John Michael Kohler, has been one of the leading US manufacturing companies for over a century, with its products ranging from furniture to power generators. Its American based Kohler Power division focuses on the latter, scaling from portable generators to industrial-scale devices. Its rich history and great reputation serve as a testament to the quality of their products. The company has in recent years outsourced some of its production overseas, to China, but US made generators can still be found among their product selection.

Warranty Information

The KOHLER PRO6.4 is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of KOHLER generators, please consult KOHLER's warranty policies. Alternatively, you can also contact their Customer Support: 1-800-544-2444.

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