Generac 5000 / 4000-Watt Dual Fuel Recoil Start Gasoline / Propane Powered Portable Generator-GP4000 DF 81552
- Dual Fuel

Model GEN-4500W-3800W-GASPortable Generators
2-Year GridGuardPlus Warranty included. Every item we sell is backed by our two-year warranty. Questions? Call 1-800-680-4080.
This portable gas generator delivers 4,500 starting watts and 3,800 running watts from a 223cc 4-stroke engine. It is lightweight and quiet for its class and includes a CO alarm, plus 12V and USB ports so you can charge phones and power small devices straight from the unit. It is a practical choice for RV trips, power tools, camping and home backup power.
A gas generator makes its own power from fuel, so it can run for as long as you keep it fueled, with no wall outlet needed. Always run it outdoors and well away from windows, doors and vents.
Running (rated) watts are what the generator can supply continuously. Starting watts are a short burst for starting motors and compressors. Add up the running wattage of everything you plan to power at the same time and keep it below 3,800W. A portable generator is not designed to run an entire home.
Anyone who needs to power an entire home, central air conditioning or other heavy loads at once, or who needs to run power indoors or in an enclosed space.
What can it run?
Add up the running watts of the items you want to power at the same time and keep the total below 3,800W. Allow for the higher starting watts of motors and compressors, up to 4,500W.
Can I use it indoors?
No. Gas generators produce carbon monoxide and must only be used outdoors in open air, even with a CO alarm.
Does it have a CO alarm?
Yes. A CO alarm is an extra safeguard and never a reason to run a generator near the home.
Can I bring it on a plane?
No. Gas generators cannot be transported by air.
Orders placed before 2:00 pm ET on a business day ship the same day from Orlando; Saturday orders before 1:00 pm ET go out that afternoon. After that, it ships the next business day.
Delivery takes 3–5 business days after dispatch to most US addresses, and 5–8 to Alaska, Hawaii and US territories.
Yes — tell us within 30 days of delivery and send it back unused, in its packaging, for a full refund. If it is faulty, damaged in transit or not as described, we pay the return; if you have changed your mind, the return shipping is yours, and we quote it before anything is booked.
Every item under $550 counts, and you can mix them: 2 items save 5%, 3 save 10%, 5 or more save 15%. The saving is taken off automatically in the cart — there is no code to enter.
Online orders are limited to $1,099 each, before sales tax. The quantity selector and the cart stop at that figure, so checkout never surprises you.
Orders over $150 ship with signature on delivery, so a missing parcel can be claimed. Your tracking number is emailed the moment the label prints.
