

⚡ Power your adventure, anytime, anywhere — don’t get left in the dark!
The Cummins Onan P4500I is a portable, gas-powered inverter generator featuring a robust 7.3 HP 224cc 4-stroke engine. It delivers 4500 starting watts and 3700 running watts with clean, stable power ideal for RVs, camping, and home backup. Equipped with remote start, dual 5V USB ports, and a 30A outlet, it combines convenience, portability, and durability in a compact 98-pound frame.










| ASIN | B081ZG9VLJ |
| Additional Features | Fuel Efficient, Overload Protection, Portable, Remote Start, Super Quiet |
| Best Sellers Rank | #78,406 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #460 in Outdoor Generators |
| Brand | Cummins |
| Brand Name | Cummins |
| Color | Grey |
| Current Rating | 30.8 Amps |
| Customer Reviews | 4.3 out of 5 stars 144 Reviews |
| Engine Displacement | 224 Cubic Centimeters |
| Engine Power Maximum | 7.3 Horsepower |
| Engine Type | 4 Stroke |
| Frequency | 50 Hz |
| Fuel Type | Gasoline |
| Global Trade Identification Number | 00690781007925 |
| Ignition System Type | Electronic |
| Included Components | Generator |
| Is Electric | Yes |
| Item Dimensions L x W x H | 24.5"L x 18.25"W x 20.5"H |
| Item Type Name | Generator |
| Item Weight | 98 Pounds |
| Manufacturer | Cummins |
| Material Type | Metal, Plastic, Rubber |
| Model Name | Onan P4500I |
| Model Number | A058U955 |
| Output Wattage | 3700 |
| Power Source | Gas Powered |
| Recommended Uses For Product | Camping |
| Running Wattage | 3700 Watts |
| Runtime | 18 hours |
| Starting Wattage | 4500 Watts |
| Tank Volume | 3.4 Gallons |
| Total Power Outlets | 3 |
| UPC | 690781007925 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Warranty Description | 3 Year |
| Wattage | 3700 watts |
F**1
Powers a/c on most rv’s
Great package.. haven’t had a chance to use yet but friend owns one and they are quiet and pack a punch
D**D
Perfect Generator
I purchased this to use with my toy hauler camper and it's worked great, very quiet allows me to use everything within the toy hauler without a hitch I haven't had any issues with it. A few of my family members have purchased the same one for themselves also to use with a camper or living quarter horse trailer and they also haven't had any issue with it at all. I love the remote start and shut off key fob it works for a good distance.
J**A
Tried and true
I bought a Generac non-inverted 8500W EFI model from Costco and it wouldn't start so I returned it. Decided to give the Cummins a try. It's not the latest design, but right out of the box (after adding oil and gas) it started right up. It's so quiet, relatively speaking (it's not going to be the gathering place at your parties) and just purrs along. They don't want you running more than 50% load until it's ran for 5 hours, so I let mine run to that point before hooking it up to my 5th wheel. Turns out my 50A 5th wheel doesn't even use 50%, at least without running AC which I didn't try. My normal hookup is only 30A, so I have no concerns with this generator being able to supply my trailer. In fact, my voltage stays up at 120 while running on the generator, whereas it drops badly when running on the park power. Changing the oil is a bit of a challenge. The body panel that covers the oil area for some reason does not line up with the oil drain plug and it's a very tight space, so it's extremely difficult to get any kind of wrench on it. I just bought a swivel head ratcheting box wrench to hopefully reach it easier in the future. I love the luggage-style handle that lets you move it around easily. I'm in the gravel and on uneven ground, so a 4 wheel setup is a problem. Tilting it up by the handle and rolling it on 2 wheels works very well. I'm very happy with the purchase.
V**R
Bad equipment
We received the generator, unboxed it and followed the instructions to start it. The generator will not even attempt to start at all. We called Cummings and GenMart. GenMart told us no replacement and we will not get our money back. That’s infuriating when we paid so much for it! We will never ever purchase from GenMart again!
C**L
Super fast shipping
Love this unit, the handle the lite 98 lbs is very manageable. The remote start is a great feature also. It’s pretty quiet although I thought it would be a little quieter but still not bad.
E**S
Cummings Onan P45001 Portable inverter Generator
Works great just what we wanted Thanks
B**N
Seems to be a good quality generator so far.
The product was delivered on time, but the battery compartment door waa dislodged during shipping and ended to inside of the generator. This was most likely due to the battery not being hooked down, as the battery was also loose in the box. So far the generator has started and ran for about 1 hour. It was easy to setup and get going. It runs very smooth and quiet. I would recommend generator. No complaints so far.
N**Y
This thing is a win for sure
This thing is a champion generator! We were without power for a week and it really saved us. The remote car starter is super dope. People are always jealous of how quiet it runs. It’s definitely, definitely worth the mulah!
Trustpilot
4 days ago
2 weeks ago