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KOHLER PRO6.4 Spec Review

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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Picture 1 of the KOHLER PRO6.4
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Price History
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Price history for the KOHLER PRO6.4
Latest updates:
  • $1,299.99 - August 6, 2020
  • $1,169.99 - August 1, 2020
  • $1,299.99 - July 24, 2020
  • $1,169.99 - July 4, 2020
  • $1,299.99 - June 3, 2020
  • $1,169.99 - May 27, 2020
  • $1,299.99 - April 30, 2020
  • $1,169.99 - April 24, 2020
Data source: tractorsupply.com
Since: April 24, 2020
  • Highest Price: $1,299.99 - April 30, 2020
  • Lowest Price: $1,169.99 - April 24, 2020

Description

Zoom on the KOHLER PRO6.4

In a nutshell, the KOHLER PRO6.4 is a portable generator mostly geared towards:

  • RV travellers looking for even more independence
  • People occasionally participating in outdoor fairs, festivals or events
  • Food truck owners who do not wish to see their business interrupted under any circumstances
  • Homeowners in need of an emergency backup power for their essentials
  • Professionals who want to ensure that a power failure will not prevent them from working

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The KOHLER PRO6.4's engine, 277 cc KOHLER Command PRO® OHV 4-stroke, fueled by gasoline, can deliver 120/240V. It provides a running wattage of 5200W and reaches a peak wattage of 6400W.

Enjoying a noise rating of 73.2 dBA (just slightly more noisy than a dishwasher), this generator gets running thanks to a simple traditional pull-start mechanism.

The fuel capacity of 8 gallons allows the PRO6.4 to operate for around 15 hours at 50% load with a full tank (fuel consumption around 0.53 GPH). 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.

The powering of sensitive electronic devices with the PRO6.4 is not recommended due to its relatively high THD (<6%).

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 features an L5-30R receptacle, enabling an easy RV connection via an L5-30P to TT-30R adaptor. However, it is still not quite RV ready. Besides, as it features a twist-lock L14-30R receptacle, the PRO6.4 is transfer switch ready: in case of a power outage, you will be easily able to connect it to a breaker box and power your household.

Portability

With its dimensions of L29.4 x W21.4 x H22.3 in, the conventional, open frame design of the KOHLER PRO6.4 offers stability and allows the generator to be raised above ground level. The device has been designed for tough environments and demanding outdoor use.

Even though this device may be technically portable (as in movable), manipulation and transportation without special equipment can be a challenge, as it weighs 174 pounds. However, this lack of maneuverability is compensated by its wheel kit (⌀10") and its folding handle, with which you can conveniently shift it, once it's on the ground.

Features

Panel of the KOHLER PRO6.4

The PRO6.4's control panel

One of the many PRO6.4's features is the data center (Maintenance Minder), included in its control panel, which conveniently provides information on the lifetime run hours and thus, helps you monitor its activity and status.

In addition to this info, a light indicator shows you if its oil levels are insufficient.

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 standpoint, the product offers an automatic low oil shut-off (Oil Sentry™ technology) and an overload protection (circuit breaker), allowing you to use it with a peace of mind.

Regarding its accessories, besides the aforementioned features, the KOHLER PRO6.4's box includes the typical documentation and an owner's manual (opens in a new tab), letting you start it right off the bat.

Emissions

The KOHLER PRO6.4 is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 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).

  • Having a dry weight of 174 lbs, the KOHLER PRO6.4 belongs in the expected weight range for generators which produce 4500 to 5500 rated watts. If weight matters to you, one of the champions in this power range is the Westinghouse WGen5300v with only 107 pounds.
  • If compared to generators capable of producing a similar running wattage, this generator with a lowest emitted noise of 73.2 dBA can be considered somewhat noisy. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Honda EU7000iS, whose lowest noise levels reach just 52 dBA.
  • Since the PRO6.4 boasts with a run time of around 15 hours at 50% load, it can be safely judged as one of the devices with the highest run time among those of a comparable output.
  • While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider fuel consumption as well. This generator reaches an estimated fuel consumption of 0.53 GPH (gallon per hour) at a 50% load, making it average, for the previously mentioned wattage range. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.35 GPH, the Westinghouse WGen5300v is a device you should look out for.

Price comparison

As you can see from this interactive 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
  • GFCI Outlets
  • High run time
AVERAGE SPECS:
  • Decent weight (174 lbs)
  • Decent fuel efficiency
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.

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 outlets
  • 2x 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
Approx. 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 (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-544-2444.

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizer.
ItemRunning WattsStarting Watts
At homeElectric fry pan15001500
Microwave (1000 watts)15001500
Sump pump (1/2 hp)10502150
Radio100100
Total4150 W5250 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Toaster oven800800
Slow cooker270270
Bug zapper8080
Total4140 W4730 W
For workTable saw18004500
Grinder14002500
Drain cleaner250250
Bug zapper8080
Total3530 W6230 W

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