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Briggs & Stratton 40510 - 8kW Home Standby Generator (50A Pre-Wired 10-Circuit Switch) for sale.

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Briggs & Stratton 8kW Home Standby Generator (50A Pre-Wired 10-Circuit Switch)

(Based on expert analysis, manufacturer ratings and customer reviews)
4.0 out of 54.0 out of 54.0 out of 54.0 out of 54.0 out of 5
2 Reviews
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In-Stock Only 3 In-Stock
Ships Monday, Oct 24th

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Airooled Standby Generators
8 kW
Rated Watts
120/240 Single-Phase
Fully Automatic Operation - Includes Automatic Transfer Switch

8kW (LP) /6kW (NG) Automatic Start Power Generator (40351)
Runs off LP or Natural Gas - no gas cans to fill and store

Newly Designed 500cc Briggs & Stratton Intek Engine
Specifically designed for this generator
Delivers improved reliability, performance and durability

Includes Pre-Wired 10-Circuit Auto Transfer Switch (50A @ 240V)
Customize your installation to back-up priority loads

25' Pre-Wired Whip - Saves Up To 30% Installation Time
Only Pre-Wired whip & ATS for indoor & outdoor placement
Install on either side of circuit breaker panel
No junction box required in some areas (Check Local Codes)

Flexible Placement (Please Verify Local Building Codes)
Tested against tough National Fire Protection Agency standards
Can be placed as close as 18” from structure

Galvanneal Steel Enclosure w/ Front Air Ventilation
Automotive rust proofing paint process for durable protection
Pushes engine exhaust out the front, away from the home

Includes Synthetic Oil & Battery Charger

4-Year Parts, Labor & Travel Warranty (100 Mile Max)
Engine Brand
Briggs and Stratton Intek
500 CC
Consumer Engine Warranty
4 Years
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Product Specs
120/240 Single-Phase
60 Hertz
Surge Watts
8000 Watts
Rated Watts
8000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
6000 Watts
LP Power Capacity
8000 Watts
NG Fuel Consumption @ 50% Load
94 (BTU: 94,000 BTU/HR) ft3/hr
NG Fuel Consumption @ 100% Load
121 (BTU: 121,000 BTU/HR) ft3/hr
LP Fuel Consumption @ 50% Load
1.04 (BTU: 94,380 BTU/HR) gallons/hr
LP Fuel Consumption @ 100% Load
1.57 (BTU: 142,478 BTU/HR) gallons/hr
Rated Amps
33 @ 240 Volts (Single Phase) Amps
Decibel Rating @ 7m
79 dbA
Transfer Switch
Automatic (Included)
Transfer Switch Amperage
Not Included (540 CCA)
Mounting Pad
Steel (Included)
Transfer Switch Style
Pre-Wired (10-Circuit)
ATS Service Disconnect
Cooling System
Air Cooled
UL Listed
Made in USA
252 Pounds
Product Length
28 Inches
Product Width
24.4 Inches
Product Height
35.1 Inches
Consumer Warranty
4 Years

*Ask Mike about the Briggs & Stratton 40510. Sorry, no repair questions:




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  1 Question
Q: What's the maximum distance that the generator can be placed from the transfer switch? What is the length of the prewired cord and how far can it be extended?
by Howard from Washington on June 27, 2014

A: There is no specific distance stated by the manufacturer for distance from the switch.

The prewired whip is 25 feet long and you must follow national and local electric codes. So, to put it another way, Briggs & Stratton will not dictate the length after their whip because if you use the right materials, spelled out in code, there is no limit to the distance you can extend.

We recommend you consult with a "Certified" electrician who is familiar with all national and local electrical code requirements for proper installation.

by Mike, Product Expert
Briggs & Stratton 40510 Reviews & Ratings
Overall Rating
4.0 out of 54.0 out of 54.0 out of 54.0 out of 54.0 out of 5
None to display.
Bad Instructions (1)
Low Quality (1)
2 Reviews  Sort by 
manufacturers review image

Christin Wam
Channel Manager
From The Manufacturer
Pre-wired Transfer Switches For Fast, Simple Installation
There are many benefits to installing a generator using a Pre-wired transfer switch including saving up to 30% of installation time and costs since there is no need to purchase, measure and cut wire; it's all there!

When you select a Briggs & Stratton Pre-wired transfer switch you are making an even better decision! We work hard to innovate based on your needs, and the needs of the certified electrician who installs the unit. Based off our extensive research, this unit reflects our... more
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William G.
Lapeer, MI
Purchased from Power Equipment Direct
Purchased 7/3/14
Total Helpful Votes
17 Helpful Votes
3 out of 53 out of 53 out of 53 out of 53 out of 5
Generator seem fine. I did not like the pad for my application. The transfer switch was cheesy. All the circuit wires run right in front of the contactor, board and fuse block. The weather proof box was a waste in my application. Started right up, seem to delay on transfer when the utility returned.
Cons: Low Quality, Bad Instructions
William Does Not Recommend This Product
William's Experience With Power Equipment Direct
Web Site


"Driver for delivery was excellent and put the unit right where I needed it to be. I will use them for the next install."
Was this review helpful?
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  • Requires a loading dock or forklift
  • Free to Lower 48 States
We currently CANNOT ship this product to Alaska, Hawaii or any destination outside of the United States
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  • Faster Delivery Times
  • Ships Same Business Day
  • Guaranteed In-Stock
  • $50 Service Charge
Lift Gate Services
  • Safely Lowers Products Off the Truck
  • Requires Special Hydraulic Lift
  • Free Lift Gate
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Buy Briggs & Stratton 8kW Home Standby Generator (50A Pre-Wired 10-Circuit Switch) at Power Equipment Direct. Read standby generator reviews and standby generator articles. Wide Selection of standby generator accessories available, including Reliance Controls Non-Contact Voltage Detector, Briggs & Stratton Standby Generator Remote System Status Panel and Briggs & Stratton 8 kW Standby Generator Maintenance Kit.

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