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Home Generators Standby Generators Briggs & Stratton 13kW Generator Power Protect + 100A 16 Circuit ATS | 40742
Briggs & Stratton 13kW Generator Power Protect + 200-Amp SE Rated Symphony ATS | 40743
Briggs & Stratton 13kW Generator Power Protect + 200-Amp SE Rated Symphony ATS | 40743 $2,899.00
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Generac 400 Amp Service Rated Automatic Transfer Switch Single Phase Nema 3R | RTSW400A3
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Briggs & Stratton 13kW Generator Power Protect + 100A 16 Circuit ATS | 40742

1 review

$2,899.00

  • Briggs & Stratton 13kW Generator PowerProtect Series
  • Rated at 11.5kW Natural Gas 13kW LP Propane
  • 16 Circuit 100-Amp Automatic Transfer Switch
  • Automatically Restores Power Seconds After the Power Goes Out
  • Sleek, Appealing Design Fits Into Neighborhood Landscapes
  • Easy, No-Tool Access to Major Components and Maintenance Items
  • Thermally Protected Fuel System Shuts off Fuel in the Event of a Fire
  • Aluminum Enclosure on a Galvanneal Steel Base
  • Longest Most Comprehensive Standard Warranty in its Class
  • 7-Year Warranty Covers Parts, Labor, and Travel for Entire Warranty Term.
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Category: Standby Generators
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Description

Briggs & Stratton 13kW Standby Generator

NEW Briggs & Stratton 13kW Standby Generator. Get Maximum Power NGMAX Technology delivering 13kW on LP and 11.5kW on Natural Gas. Includes the longest, most comprehensive standard warranty in the industry. Briggs and Stratton’s PowerProtect Series has a sleek and appealing design with tool-less access to all major components for routine maintenance.

The 13kW Generator includes a 100-Amp 16-Circuit Load Center Automatic Transfer Switch to power your critical, essential, and basic circuits.

More powerful than competing 13kW models, Briggs and Stratton rates the air-cooled standby at 37kVA for motor starting capability. 13kW LP Propane 11.5kW Natural Gas in accordance with Underwriters Laboratories UL2200. PowerProtect Series generators install just 18 inches from your home, taking up less space and fitting into your landscape. The Briggs & Stratton 40742 comes with the load center transfer switch—ideal for homes with lower electrical needs or to power only the most important circuits.

  • Briggs and Stratton 100-Amp 16-Circuit Automatic Transfer Switch
  • NGMax Technology for superior power and performance on Natural Gas or Propane
  • Eco-cise 16 second weekly test mode tests generator while reducing noise and fuel consumption
  • Suitable for Off-Grid Use or On-Demand Systems
  • Excellent Motor Starting Capability for Large Appliance Motors
  • Commercial-Grade 627 cc Engine
  • Reinforced Corrosion Resistant Enclosures and Bases.

The 13kW Briggs and Stratton Generator has the longest, most comprehensive warranty of any air-cooled standby. Briggs & Stratton’s 7-Year Limited Warranty covers parts, labor, and travel for the entire 7-year term. Made in the USA with commercial-grade Vanguard engines that lead the industry with rugged and reliable operation. With a 200-Amp Automatic Transfer Switch (not included), the 18kW generator keeps your entire home supplied with power for the duration of any power outage.

Briggs and Stratton 13kW Generator

The Briggs and Stratton 13kW Generator has a 627 cc V-Twin OHV Vanguard commercial-grade engine equipped with Low Oil Shutdown to prevent engine damage. This standby generator set also has a high temperature shutdown, LED display, and a built-in battery charger. The aluminum enclosure withstands hurricane-force winds up to 186 MPH. Compatible with the Symphony II and Amplify Power Management systems to ensure your home and family have the power they need when they need it.

13kW Standby Generator 40742 Ratings

Automatic Transfer Switch 100 Amps Single Phase 16 Circuits
Voltage 120/240 Volts Single Phase
Running Watts 13kW LP Propane / 11.5kW Natural Gas
Running Amps 54.2 Amps LP Propane / 47.9 Amps Natural Gas
Main Circuit Breaker 70 Amps
Normal Operating Sound 69 dBA Normal Operation / 65 dBA Low Idle Mode
Frequency Regulation ±1.0 Percent
Engine Speed 3600 RPM

13kW Briggs and Stratton Generator

Briggs and Stratton 13kW Generator installations require the use of a Carbon Monoxide Detector inside the home to guard against CO Poisoning.

* Battery Not included—12 Volt, Group BCI 26 or 51, 540 Cold Cranking Amps

* Enclosure Warranty

  • 1-Year Parts/Labor/Travel covers surface rust and corrosion.
  • 3-Year Parts/Labor/Travel covers enclosure rust through.

Product Specifications

Model

Model Number; 40742

Manufacturer; Briggs and Stratton

Made In USA; Yes

Rated Watts; 11.5kW Natural Gas 13kW Propane

Rated Amps; 54.2 Amps Propane or 47.9 Amps Natural Gas

Voltage; 120/240 Volts Single Phase

A/C Ton Rating; 4-Ton

Enclosure; Aluminum Enclosure with Galvanneal Steel Base

UL Listed; UL-2200

Decibel Rating; 65 dBA Low Idle / 69 dBA Normal Operation

Type; Standby Generator

Series Name; PowerProtect

Features

Starting System; Automatic

Low Oil Alert; Low Oil Shutdown

Mainline Breaker; 70 Amps

Battery Requirement; 12-Volt, Group 26 or 51, 540 CCA

Weight; 315 Pounds

Dimensions; 28.5L x 25.5W x 37.6H Inches

Warranty Information

Consumer Warranty; Briggs and Stratton 7-Year Limited Warranty Covers Parts, Labor, and Travel

Engine

Engine Brand; Vanguard Commercial Grade OHV

Engine Size; 627 cc

Engine RPM; 3600

Cast Iron Sleeve; Yes

Cooling System; Air Cooled

Alternator

Alternator Type; Synchronous, Self-Excited, Rotating Field

Frequency; 60 Hz

Auto Voltage Regulation; Yes

Fuel

Fuel Type; Natural Gas or LP Propane

Fuel Gauge; No

NG Power Capacity; 11.5kW

LP Power Capacity; 13kW

NG Consumption @ Full Load; 212 Cubic Feet per Hour

NG Consumption @ Half Load; 119 Cubic Feet per Hour

LP Consumption @ Full Load; 2.9 Gallons per Hour

LP Consumption @ Half Load; 1.7 Gallons per Hour

Transfer Switches

Transfer Switch Model; 71212

Transfer Switch Amps; 100 Amps

Transfer Switch Circuits; 16 Circuits

Ats Poles; 2

Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

Customer Reviews

Based on 1 review
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R
Ronnie
Decent Backup Power, But Not Without Frustrations

I installed the Briggs & Stratton 13kW Power Protect generator (40742) mainly for storm season coverage. Living in a rural area where outages happen more often than they should, I needed something reliable to keep essentials running - fridge, well pump, lights, etc. The power output has been consistent, and the automatic transfer switch works as it should.
But setup wasn’t as smooth as I hoped. The installation instructions were vague, and even my electrician had to call support a couple of times to clarify wiring. Also, the unit runs louder than expected for a residential area - not a dealbreaker, but it’s worth noting if you’re placing it close to the house.
It gets the job done, but at this price point, I expected a bit more refinement and better support. Not a bad generator, just not quite as user-friendly as I hoped.

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