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Briggs & Stratton 40346 20kW Generator with 200A SE Transfer Switch

Discontinued - AP Recommends Replacing with Briggs 40621
5 Stars 3 product reviews
Average Product Review Rating: 5/5
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The Briggs & Stratton 40346 20kW Air-Cooled Standby Generator provides reliable backup power for homeowners during a power outage. This generator makes sure your appliances stay on so you and your family aren’t left in the dark. Includes outdoor/indoor NEMA 3r rated automatic power transfer switch, providing flexible installation.

Briggs & Stratton 40346 Features:

  • Thanks to Symphony II Power Management System, a smaller home generator system by Briggs & Stratton can meet all your needs and save you money in the process.
  • This 20kW with Symphony II Power Management can manage a home, up to 12,000 square feet with a 5-ton air conditioner saving you thousands less than a previously required larger, liquid cooled unit
  • Includes 200 Amp Automatic Transfer Switch
  • Reliable, commercial-grade Briggs & Stratton Vanguard engine handles the most demanding jobs
  • Compliancy with the NFPA 37 standard means it can be placed as close as 18” from your home for flexible placement3 options — perfect for tight lot lines.
  • Automatically turns on the backup generator for your home in seconds after sensing a power outage
  • Comprehensive 5-year parts, labor and travel limited warranty
  • This standby generator is available for sale in all 50 states
  • Rated for operation in areas with low natural gas pressure. This home generator can operate at 3.5’’ to 7’’ water column.


40346 Specifications Sheet 40346 Specifications Sheet
Transfer Switch Specifications Sheet Transfer Switch Specifications Sheet
40346 Warranty 40346 Warranty

Product Reviews

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  1. Best generator ever

    5 star rating Product Review Rating: 5/5

    Posted by on Feb 24, 2017

    I bought this generator 3 years ago, Installed it myself and it cranks up every time power is dropped, been very happy with it.

  2. Briggs 20 KW Air Cooled

    5 star rating Product Review Rating: 5/5

    Posted by on Feb 13, 2017

    I've sold as many as 30 units such as the 20 KW from Briggs & Stratton. I have never had an after the sale problem except for one sensor in a transfer switch. All customers are very satisfied

  3. great Generator

    5 star rating Product Review Rating: 5/5

    Posted by on Jul 01, 2015

    I am very pleased with my purchase of this Briggs & Stratton 40346 20kW Generator with 200A SE Transfer Switch. competitively priced and Briggs & Stratton are known for their engines. I have had it installed for about 4 months now. One brief power outage so far of about 1 hour so nothing major. fired right up and power was restored in under 10 seconds I would guess. I would recommend this home standby generator. Deliver was also spot on.

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