Generac 6552 Guardian 22kW LP/NG Standby Generator New

Manufacturer: Generac

SKU: 6552

Generac 6552 Guardian 22kW LP/NG Standby Generator New
Generac 6552 Guardian 22kW LP/NG Standby Generator New


$ 4,499.00

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Product Overview

  • Generac 22kW
  • 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
  • 5-Year Limited Warranty

Please note: Due to a chip shortage this unit will not have WiFi functionality right away.  Generac will mail you a WiFi chip that can be plugged into the outside of the generator. Chips are estimated to ship by late Summer.  The WiFi feature is solely for remote monitoring and will not affect the performance of the generator.

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authorized dealer

5 year factory warranty


Brand new in box


Ships directly from Generac


Works with liquid propane or natural gas


Authorized Generac dealer

Generac 6552 Guardian 22kW LP/NG Standby Generator New

Generac 6552 Guardian 22kW LP/NG Standby Generator New


  • Mobile Link™ Remote Monitoring FREE with every Guardian Series Home standby generator Allows you to monitor the status of your generator from anywhere in the world using a smartphone, tablet, or PC. Easily access information, such as the current operating status and maintenance alerts. Connect your account to your authorized service dealer for fast, friendly and proactive service. With Mobile Link, you are taken care of before the next power outage.
  • 5 Year Limited Warranty for automatic standby generators.
  • 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 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.
  • Our RhinoCoat™ powder-coated finish helps make corrosion-resistant aluminum perfect for all weather conditions.
  • 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.


TypeNatural Gas or Propane
NG Consumption Full Load306 Cubic-feet / hour
NG Consumption Half Load203 Cubic-feet / hour
LP Consumption Full Load3.9 Gallons / hour
LP Consumption Half Load2.5 Gallons / hour
Consumer WarrantyGenerac 5-Year Limited Warranty
Model Number6552
Made In USAYes
Rated Watts22kW Propane / 19.5 kW Natural Gas
Rated Amps100-Amps
AC Ton Rating5-Ton
UL ListedUL-2200
Decibel Rating 7m57 dBA Quiet Test Exercise / 67 dBA Full Load
TypeStandby Generator
Series NameGuardian Series
Starting SystemAutomatic
Low Oil AlertLow Oil Shutdown
Mainline Breaker100-Amps
Battery Requirements12-Volt Group 26R 540 CCA / Group 35AGM 640 CCA
Mounting PadYes
Weight445 lbs
Dimensions48L X 25W X 29H
Engine BrandGenerac G-Force
Engine Size999 cc
Engine RPM3600
Cast Iron SleeveYes
Cooling SystemAir-Cooled
Alternator Type2-Pole Rotating Field
Frequency60 Hz
Auto Voltage RegulationYes

Package Contents

Generac 6551 22kw Standby Generator

Aluminum Enclosure

Composite Pad

User's Manual


vendor logo
authorized dealer

This item comes with a 5 year factory warranty.

Manuals & Documentation

Customer Reviews (215)

Customer Reviews

Based on 215 reviews
couldn't keep it running

I purchased a 22-kw generac generator and it worked fine for about 3 years and at some point it wouldn't start. I had 3 different authorized dealer repairmen work on it. The spark plugs were changed at least twice, plug wires once, carburetor, was changed out, the choke assembly was again changed, the magnetic pick ups were also changed and still after all of these changes it still ran poorly.. During a repair service call, a service tech noticed a diaphragm which had openings to allow air the activation of the fuel to flow to the engine was clogged with dirt and he removed the mud and the unit started up immediately. The air diaphragm is located on the right side at the very bottom of the unit with air vents allowing water when it rains and dust from mowing the grass to enter. To prevent the system from clogging I cut a plastic gallon water bottle in half and placed it over the diaphragm and it has run great ever since. I called generac numerous times when the unit wouldn't run so I felt it would be the right thing to do as to inform them what they were able to cure the issue and wouldn't you know it, they voided my warranty. I would estimate that generac had spent an excess of 5 or 6 hundred dollars for the tech and several hundred more dollars for parts. This is now the 3rd year sin I used the plastic bottle and the unit is and has run great every time we have had a power outage.

Michael Green
Buying a generator and delivery was easy

I purchased a Generac generator about a month ago and the purchase and delivery were easy. Factory Pure was the best price out of 5 vendors I shopped. Delivery was about 7 days after I purchased the generator and a date and time was set by the shipper.

Gregory Tabbert
Great service

Easy to talk to and explain everything

James Fellwock

Was packaged perfectly and not one problem, delivery company was also exceptional

Edward Henderson

Great service at great prices!!!! Thank you from Hanover, Ma

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