Free shipping over $199

Generac 70771 20/17 kW Air-Cooled Standby Generator, Aluminum Enclosure

by Generac

$5,575.22 + Free Shipping
Ships Factory Direct
This is a Built to Order item and ships from the manufacturer within 10 to 15 business days. For further assistance please call 800.629.3325

Condition: New

SKU: GNC-70771

Product Downloads





Owner's Manual


Wi-Fi Manual



  • For small commercial buildings with 120/208V 3-Phase service
  • Protects your small business during a power outage
  • Monitor generator status on a smart phone, tablet or PC
  • Requires automatic transfer switch (Sold Separately)
  • Compatible with Generac RTS Series transfer switches
What's in The Box
  • Generac Guardian 70771 20kw Aluminum Standby Generator System
  • Owners Manual
  • 5-Year Limited Factory Warranty
  • 30 Day Satisfaction Guaranteed
SKU 70771
Brand Generac
Engine Generac OHVI
Engine RPM 3600
Max Continuous Power Capacity (LP) 20,000 Watts
Max Continuous Power Capacity (NG) 17,000 Watts
Starting System 12v Auto Start
Fuel Type LP/ natural Gas
Voltage 120/208 Three Phase
Frequency 60 Hz
Enclosure Aluminum
Transfer Switch Automatic (Not Included)
Length 48 in
Width 25.5 in
Height 29 in
Unit Weight 516 lbs
This generator provides essential circuit power protection for your home during a power outage, ensuring that essential appliances maintain power. This standby generator is automatic and offers protection year-round, for less than the cost of central air conditioning.
Every Guardian Series home standby generator comes with Mobile Link™ Remote Monitoring. Remote Monitoring is FREE, and allows you to monitor the status of your generator from anywhere in the world. Use a smartphone, PC, or tablet to access generator information, such as the current operating status and maintenance alerts. By connecting your account you have access to authorized service dealers for fast, friendly, and proactive service.
Generac generators are ideal for weathering storms and power outages. Their automatic backup power gives you piece of mind that your home and appliances are protected.
Generac generators and engines are designed, engineered and assembled in the USA using domestic and foreign parts.
The Generac G-Force Engine is built to handle the stressors of generator use. This results in power that’s more reliable and requires less routine maintenance than competitor engines. Generac’s new G-Force engine is purpose built and pressure-lubricated. It features hydraulic lifters, which improve engine performance and extending the life of the product. (Hydraulic lifters only available on the 13 & 16 kW.)

Spend $199 or more and receive Fast FREE Ground Shipping on your order. Plus for those of you who need your order even quicker, spending $199 or more we pass the savings on to you by offering Discounted Express Shipping. For orders under $199, you will only pay a flat fee of $8.95. This shipping offer applies to the Continental US ONLY. All locations outside the Continental US will receive discounted shipping, if you have any questions please feel free to contact us. Full Shipping Policy.