Generac 7039 Guardian 20kW Standby Generator w/ 200 Amp Smart Transfer Switch New

Manufacturer: Generac

SKU: 7039

Generac 7039 Guardian 20kW Standby Generator w/ 200 Amp Smart Transfer Switch New
Generac 7039 Guardian 20kW Standby Generator w/ 200 Amp Smart Transfer Switch New


(888) 999-1522

$ 4,999.00

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Generac 7039 Guardian 20kW Standby Generator w/ 200 Amp Smart Transfer Switch New

Generac 7039 Guardian 20kW Standby Generator w/ 200 Amp Smart Transfer Switch New

Product Overview

  • Generac 20kW Generator 
  • Generac G-Force V-Twin Overhead Valve Industrial Engine
  • Certified for 18” to Home Installation
  • Included Composite Pad Sits Directly on Soil
  • Natural Gas or LP Gas Operation
  • All Weather Aluminum Enclosure with Improved Locking System
  • Access all Electrical, Fuel, and Battery Connections Under a Single Removable Panel
vendor logo
authorized dealer

5 year factory warranty


Includes 200a Switch


Brand new Generator


Ships directly from Generac out of WI


Works with liquid propane or natural gas


Authorized Generac dealer


  • True Power™ Technology delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances.
  • Generac generators and engines are engineered and assembled in the USA*
  • Generac’s Evolution™ Controller features a multilingual LCD display that allows users to monitor battery status and track maintenance intervals to ensure your generator is always in top operating condition.
  • Our RhinoCoat™ powder-coated finish helps make corrosion-resistant aluminum perfect for all weather conditions
  • Generac's G-Force Engine is a purpose-built, pressure-lubricated engine capable of handling the rigors of generator use, resulting in power that’s more reliable and requires less routine maintenance than any competitive engine.
  • Quiet-Test™ Self-Test Mode runs at a lower RPM for a five or twelve minute test, making generators significantly quieter than other brands while consuming less fuel.
  • 24/7/365 Customer Support Team standing by all day, every day from our headquarters in Wisconsin to answer any questions you might have.


Type Natural Gas or Propane
Gauge No
NG Consumption Full Load 301 Cubic-feet / hour
NG Consumption Half Load 204 Cubic-feet / hour
LP Consumption Full Load 3.56 Gallons / hour
LP Consumption Half Load 2.37 Gallons / hour
Transfer Switch
Switch Amps 200-Amps
ATS Poles 2
Consumer Warranty Generac 5-Year Limited Warranty
Model Number 7039
Manufacturer Generac
Made In USA Yes
Rated Watts 20kW Propane /18kW Natural Gas
Voltage 120/240-Volts
AC Ton Rating 5-Ton
Enclosure Aluminum
UL Listed UL-2200
Decibel Rating 7m 57 dBA Quiet Test Exercise / 67 dBA Full Load
Type Standby Generator
Series Name Guardian Series
Starting System Automatic
Low Oil Alert Low Oil Shutdown
Mainline Breaker 90-Amps
Battery Requirements 12-Volt Group 26R 540 CCA
Mounting Pad Yes
Weight 448 lbs
Dimensions 48L X 25W X 29H
Engine Brand Generac G-Force
Engine Size 999cc
Engine RPM 3600
Cast Iron Sleeve Yes
Cooling System Air-Cooled
Alternator Type 2-Pole Rotating Field
Frequency 60 Hz
Auto Voltage Regulation Yes

Package Contents

Generac 20kw Standby Generator

200a Transfer Switch

Aluminum Enclosure

Composite Pad

User's Manual


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authorized dealer

This item comes with a 5 year factory warranty.

Customer Reviews

Customer Reviews

Based on 6 reviews
Jeff Gaines

Very friendly and helpful service. Each customer service rep is very helpful.

James Malerba
Generac -- like life insurance -- great to have but you hope to never have to use it

We installed a Generac 7039 Guardian 20kw generator with the 200 amp smart transfer switch ($4,599) and 5 Generac Smart Management Module SMM 7000 ($130 each).

So good. Delivery worked well. Installation was easy. It tests weekl with no issues. With luck, we will rarely have to use it. The modules do a great job of managing the load and according o our electrician..."They are the best thing since sliced bread."

As noted in our other reviews, we were disappointed in Factory Pure for other reasons (restock fee, requiring you to wait for Generac to approve returns, sloe shipping for replacement items) but are happy overall with or Generac.

G. Hurner
Getting hooked up

I look forward to having my Generac hooked up.
One problem is the model number on the number it is not the model number on the literature

John Erickson

Seems like a great machine. I haven’t had a chance to use it yet because my power has not gone out. I had a 400 amp service to my house so my electrician had to make a lot of changes on installation. However he was brilliant in doing this and everything seems to work fine.Seems like a great value for the money spent.

michael laupp

Generator arrived in perfect condition, can’t say the same for the battery. Only trouble now is finding someone qualified to install it. Other wise, very happy with your company

John Diaz

Generac 7039 Guardian 20kW Standby Generator w/ Smart Transfer Switch New

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