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The Briggs & Stratton 40304a - 18kw home standby generator (natural gas) has been discontinued and is not available for purchase at this time.

Briggs & Stratton 40304A - 18kW Home Standby Generator (Natural Gas)

(Based on expert analysis, manufacturer ratings and customer reviews)
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
1 Review
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Air Cooled Standby Generators
18 kW
Rated Watts
Need Help? Call Our Generator Experts.
Industry leading 4 year limited warranty
Covers both parts and labor

Briggs & Stratton V-Twin Commercial Engine
Provides years of long lasting, reliable standby power

Sound Shield™ Technology
Ensures ultra-quiet, neighbor-friendly operation (Only 68 dB)

Patented Central Air Technology When Using ACCM-II Transfer Panel
Manages demands of up to two 5-ton central air conditioners

CoastGuard™ All-Climate Enclosure
Automotive rust proofing paint process reduces corrosion

Remote System Status
Transmits diagnostic reporting on 8 different system functions

Turnkey Extras
Automatic battery charger
Polymer installation pad
Synthetic oil
Hour meter

Natural Gas Configured
Simply connect to your home's natural gas supply
Will NOT work with LP propane tanks

  Model Number:40304A
 Manufacturer:Briggs & Stratton
 Made in USA:Yes
 Brand:Briggs & Stratton Vanguard
 HP/CC:993 cc
 Consumer Engine Warranty:4 Years
 Commercial Engine Warranty:Not Available
 Engine RPM:3600 RPM
 Low Oil Alert/Shutdown:Yes
Product Specs
 Voltage120/240 Single-Phase
 Frequency:60 Hertz
 Cooling SystemAir Cooled
 Fuel TypeNatural Gas
 NG Power Capacity18,000 Watts
 NG Consumption (50% Load)160 ft³/hr (BTU: 160,000 BTU/HR)
 LP Consumption (50% Load)'N/A' gallons/hr (BTU: 0 BTU/HR)
 Rated Amps:75 Amps @ 240 Volts (Single Phase)
 Decibel Rating @ 7m:68 db(A)
 A/C Ton Rating5-Tons
 Mounting PadComposite (Included)
 Transfer Switch:Automatic (Not Included)
 Transfer Switch StyleStandard Installation
 ATS Poles:2 Poles
 Battery:Not Included (350 CCA)
 UL ListedYes
 Weight:600 Lbs.
(121.92 x 83.82 x 77.47 cm)
 Dimensions:48L x 33W x 30.5H
 Consumer Warranty:4 Years
 Commercial Warranty:Not Available
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Briggs & Stratton 40304A Reviews & Ratings
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1 Review  Sort by 
Dwight Richard
Geismar, LA
Total Reviews
2 Reviews
5 out of 55 out of 55 out of 55 out of 55 out of 5
Very Pleased
I Had a 18kw Natural Gas Generator Installed On My Home a Couple of Months Ago and So Far So Good.

It Has Come On a Couple of Times, Only For About a Half-Hour Each Time, But Everything Worked Out Great. It Starts Once a Week For 30 Minutes and Runs It's Self-Test.

I Am Very Pleased With the Briggs and Stratton Product So Far. I Just Built a New House and Knew Before I Built That I Was Going to Put a Standby Generator in With the New House.

I Almost Went With the Generac But... more
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Shop for the Briggs & Stratton 40304A - 18kW Home Standby Generator (Natural Gas) at Electric Generators Direct. Research Briggs & Stratton standby air-cooled generators online. Find Briggs & Stratton 40304A standby air-cooled generators & 18 kw IntelliGEN natural gas generator features and specifications.