Search  for anything...
Cummins

Cummins Onan P4500I Portable Inverter Generator, Power Inverter Dual 5V USB Ports for Mobile Charging, Gas Powered for Backup Home Use, RV & Camping - 7.3 HP 224cc OHV 4-Stroke Engine W/Remote Start | 224cc OHV 4-stroke gas engine, dual 5V USB ports, 30A TT-30R RV outlet, parallel capable up to 50A, pull cord backup

  • Based on 156 reviews
Condition: New
Checking for the best price...
$1,425.38 Why this price?
Save $73.62 was $1,499.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

Availability: Only 2 left in stock, order soon!
Fulfilled by CWDS
Arrives Friday, Aug 7
Order within 19 hours and 51 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • INNOVATIVE & PORTABLE POWER INVERTER: The Cummins Onan P4500I inverter portable generator is your go-to source of power wherever you need it. Designed compact with RV capabilities, our portable generator is the ideal generator for home use or on-the-go power.
  • HIGH-PERFORMANCE GAS-POWERED GENERATOR: With a robust 7.3 HP 224cc OHV 4-Stroke engine, this heavy-duty generator can run your tools, electronics, and appliances efficiently. Our power generator is a great choice for reliable power at job sites or during emergencies.
  • USER-FRIENDLY RV INVERTER GENERATOR: Easy to start with a push button or pull cord backup, our power inverter generator offers smooth operation. This RV generator has parallel capability with another P4500 for up to 50A - offering you more power when you need it.
  • CONSIDERS ALL NEED: This innovative portable inverter generator features dual 5V USB ports for charging mobile devices and a 30A TT-30R outlet for camper use. An ideal RV generator for camping trips, offering clean, reliable power.
  • DURABLE & POWERFUL 4500 WATT GENERATOR: The P4500I Cummins Onan generator is more than a portable gas generator, it's your power solution. With our reliable and durable inverter/ generator, you can meet your energy needs - whether for outdoor activities or as a home backup.

Description

Designed to go wherever you do, the Onan 4500i Portable Generator brings together efficiency, durability, and performance to ensure that you'll always have power when you need it most. *Please review the included quick start guide before initial operation* The fuel-efficient P4500i has a 3.4-gallon fuel tank that runs 18 hours at 25% load. Remote start with included FOB (109yds), Push-button start, and manual pull-cord for backup. Features a 30A TT-30R outlet and two 5V USB ports for charging electronics like phones or tablets.

Brand: Cummins


Wattage: 3700 watts


Fuel Type: Gasoline


Power Source: Gas Powered


Recommended Uses For Product: Camping


Item Weight: 98 pounds


Voltage: 120 volts


Output Wattage: 3700


Special Feature: Fuel Efficient, Overload Protection, Portable, Remote Start, Super Quiet


Included Components: Generator


Wattage: 3700 watts


Fuel Type: Gasoline


Power Source: Gas Powered


Recommended Uses For Product: Camping


Voltage: 120 volts


Output Wattage: 3700


Additional Features: Fuel Efficient, Overload Protection, Portable, Remote Start, Super Quiet


Engine Type: 4 Stroke


Ignition System Type: Electronic


Tank Volume: 3.4 gallons


Engine Displacement: 224 cubic centimeters


Total Power Outlets: 3


Current Rating: 30.8 A


Engine Power Maximum: 7.3 hp


Starting Wattage: 4500 watts


Running Wattage: 3700 watts


Frequency: 50 hertz


Runtime: 18 hours


Color: Grey


Material Type: Metal


Brand Name: Cummins


Included Components: Generator


Model Name: Onan P4500I


Model Number: A058U955


UPC: 690781007925


Unit Count: 1 Count


Manufacturer: Cummins


Global Trade Identification Number: 25


Item Type Name: Generator


Manufacturer Part Number: A058U955-P4500I


Warranty Description: 3 Year


Item Weight: 98 pounds


Item Dimensions L x W x H: 24.5"L x 18.25"W x 20.5"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 7

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Quiet running, easy set up
This is a great inverter generator. Came with easy to follow instructions. Need to fill oil (supplied BT manufacturer) need to hook up battery, add fuel. Easy start button, quiet, powers small A/C, excellent for running tools or small RV trailer.
Reviewed in the United States on July 5, 2026 by W K
    • Updated - Now working good
Initial issues. Resolved. Now working good.
Reviewed in the United States on June 29, 2026 by Jules
    • 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 very quiet. I now have owned this since Dec. this unit has ran every night when temps drop below 20 degrees. With temps 15 below zero on many nights this started and ran flawless.aThis has been a job saver for me, I can't say enough. ... show more
Reviewed in the United States on December 6, 2025 by Carl
    • 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. ... show more
Reviewed in the United States on November 11, 2023 by Jeff in Wenatchee, WA
    • Amazing generator
My friend purchased one of these several years ago and I had to have one. It’s so quiet it doesn’t affect anyone at our campsite when camping. Starts fist try every time. It’s a work horse for sure!
Reviewed in the United States on February 9, 2026 by Jhinze
    • Powerful generator, great for RV owners.
Love this thing, travels in the bed of my truck, the remote start is an awesome feature. Plugged into my camper overnight no need to go outside to start on a cold wet morning. Great product. Would highly recommend to other RV owners.
Reviewed in the United States on March 14, 2026 by Melissa
    • Very dissatisfied
I bought 2 of these generators with parallel kit. Delivery was great but once I put oil in them and got them started they ran for about 4 hours and then both shut down. Couldn’t get them to start again and after looking into it further 1 is leaking oil and the other not sure what’s going on just won’t start. Called manufacturer and they told me to stop by local dealer for repairs and or replacement. Can’t get me in for 2 weeks to look at them. In the meantime I had to go another generator to use until I can get replacement or refund. ... show more
Reviewed in the United States on September 30, 2023 by Eric
    • Heavy equipment
Large generator but great power
Reviewed in the United States on June 11, 2026 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...