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Generators
Inverter Generator SIG4540E
Portable 4000-Watt Inverter Generator
Online Model No: SIG4540E (Part No: 70063)
In-Store Model No: SIG4540E (Part No: 70063)
SIMPSON® inverter generators are perfect for providing power at work sites, recreational facilities, residential locations and more. These units run more quietly than standard generator units and provide a safe power source for sensitive electronics. The compact design allows for easy storage when not in use. Whether tailgating before a game, charging tools at a construction site or providing backup power for your home in case of a weather-related emergency, rely on SIMPSON for your power needs.
Features
- SIMPSON CRX® 225 engine with recoil and electric start
- LED Display
- Clean power, safe for sensitive electronics such as laptops, chargers and TVs
- Easy access data center provides real-time readings on fuel/wattage levels and run time
- Power is quietly delivered in comparison to standard generator noise levels
- Breaker Amperage: 30A MAX
- 2.4 gal gasoline fuel capacity
- Outlet Type: 120V (TT-20R) RV Outlet, 120V Duplex (5-20R) GFCI, 12V DC Automotive
- 9 hour run time at 50% Load
- RV Adapter included
- Unit Dimensions: L: 24” x W:17.5” x H: 19”
- Unit Weight: 110 lbs
- The actual product may vary slightly from product images
- *Generator per PGMA (Portable Generator Manufacturers’ Association) standard ANSI/PGMA G300-2015, Safety and Performance of Portable Generators.
**See Operator’s Manual for complete warranty details
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Product Specs
- UPC (Online): 879399006760
- Fuel Tank Capacity (Gallons): 2.4 gal Gasoline
- Run Time at 50% Load (hours/tank or charge): 9 hours
- Running Watts: 4000
- Starting Watts: 4500
- Engine Brand: CRX 225
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Warranty
- 3 Year limited consumer warranty
- 1 Year limited commercial warranty
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Reviews
Poe400Excellent features good priceReviewed in SC on October 12th, 2025
I just bought it, but it cranks up good and seems to run good.
Response from SIMPSONWe're happy to hear your inverter generator fired right up & delivered a smooth performance. Thanks for taking the time to review, Poe400!
Simpson TeamOctober 13th, 2025
BaryorkSo DisappointedReviewed on June 2nd, 2025I was finally feeling at ease when I bought the SIG4540E generator and ran it on my 3rd trip in my RV with my camping group. I had done everything right maintaining this generator changing the oil more than anyone would normally do. The hour meter read 226 hours when I went on this recent trip and I was extremely happy and had piece on mind with the way this had performed. On the second night of our trip that all came to an end. The unit died and would not restart. Luckily a friend had a spare 12 year old generator he let me use for our last day of camping. I'm so tired of wasting money on things that will not last long enough for you to get your fair money's worth.
Response from SIMPSONHi, Baryork. We are sorry to hear about the sudden failure - this is not the performance we expect & we'd like to learn all we can. Would you reach out to our team directly at 877-362-4271 or email us at productsupport@simpsoncleaning.com? We hope to hear more about what happened to determine how to improve this experience as quickly as possible. Thanks for sharing this feedback & we hope you will be in touch soon!
Simpson TeamJune 3rd, 2025
DIY GuyEase of use5/5Quality5/5Effectiveness5/5Value5/5Good value generatorReviewed in St Louis, MO on September 23rd, 2024Age: 55 to 64 |Purchased from: In-storeI purchased this generator on sale. It was an excellent value for the performance. The generator oil is easy to change, maneuvering the generator on the two wheels in comfortable, the gas tank and hour monitor are nice, the generator easily starts on the battery, and maybe most importantly the generator is relatively quiet.
Response from SIMPSONWe are happy to hear you've been pleased with every aspect of your inverter generator, and it has been delivering a flawless 5-star performance. Thanks for taking the time to review, DIY Guy!
Simpson TeamOctober 2nd, 2024
TomV38Ease of use5/5Quality4/5Effectiveness5/5Value5/5PerformanceReviewed in Saint Louis, Mo on June 6th, 2024Age: 55 to 64 |Purchased from: Online| Incentivized Review: YesPowered a RV AC, two outside fans, RV refrigerator, Two Tv's Hot water heater, Charged RV Batteries and charged 18Volt tool batteries over a 24 hour non stop period. Only issue was when we tried to run the Coffee Maker and Microwave while running everything above. Turned off the AC then no problems. Used about 9 gallons of fuel during that time and it was quite compared to a normal Generator. I would give 5 stars but have only used it once so far.
Response from SIMPSONThat's great to hear, TomV3.! We are so happy your inverter generator powered everything so reliably & efficiently. We appreciate you taking the time to share this experience!
Simpson TeamJune 10th, 2024
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