---
product_id: 461769628
title: "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"
brand: "cummins"
price: "¥631454"
currency: JPY
in_stock: true
reviews_count: 8
category: "Cummins"
url: https://www.desertcart.jp/products/461769628-onan-p4500i-portable-inverter-generator-power-inverter-dual-5v-usb
store_origin: JP
region: Japan
---

# 4500W peak power Dual 5V USB ports 7.3 HP 224cc 4-stroke engine 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

**Brand:** cummins
**Price:** ¥631454
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your freedom, anywhere, anytime.

## Quick Answers

- **What is this?** 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 by cummins
- **How much does it cost?** ¥631454 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/461769628-onan-p4500i-portable-inverter-generator-power-inverter-dual-5v-usb)

## Best For

- cummins enthusiasts

## Why This Product

- Trusted cummins brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Parallel Power Boost:** Connect two P4500I units for up to 50A output—perfect for when you need extra juice on demand.
- • **Quiet, Compact & Ready:** Super quiet operation in a portable, fuel-efficient design that fits perfectly into your camping or emergency kit.
- • **Effortless Start, Anytime:** Remote start and push-button ignition make powering up a breeze, even from inside your RV or home.
- • **Power that Keeps You Going:** Robust 4500W starting wattage with 3700W running power for seamless backup and outdoor use.
- • **Charge Everything, Everywhere:** Dual 5V USB ports ensure your mobile devices stay powered on the move—no more dead batteries.

## Overview

The Cummins Onan P4500I is a portable, gas-powered inverter generator featuring a 7.3 HP 224cc 4-stroke engine delivering up to 4500 starting watts and 3700 running watts. Designed for RV, camping, and home backup use, it includes dual 5V USB ports, a 30A outlet, remote start, and parallel capability for expanded power. Compact, fuel-efficient, and super quiet, it offers up to 18 hours runtime on a 3.4-gallon tank, backed by a 3-year warranty.

## Description

desertcart.com : 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 : Patio, Lawn & Garden

Review: Great generator. - I’ve used this for about three months now, camping, and it’s been great. It starts up every time the remote works great, and it gives me the power that I need when I need it.
Review: A little more noise than I thought it would have. - Great little generator for camping. Not as quiet as described I think, but not obnoxious either. Quiet hours, you will most likely have to shut it off.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B081ZG9VLJ |
| Additional Features | Fuel Efficient, Overload Protection, Portable, Remote Start, Super Quiet |
| Best Sellers Rank | #316,647 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #757 in Outdoor Generators |
| Brand | Cummins |
| Brand Name | Cummins |
| Color | Grey |
| Current Rating | 30.8 A |
| Customer Reviews | 4.5 out of 5 stars 160 Reviews |
| Engine Displacement | 224 cubic centimeters |
| Engine Power Maximum | 7.3 hp |
| Engine Type | 4 Stroke |
| Frequency | 50 hertz |
| Fuel Type | Gasoline |
| Global Trade Identification Number | 00690781007925 |
| Ignition System Type | Electronic |
| Included Components | Generator |
| 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 |
| Manufacturer Part Number | A058U955-P4500I |
| Material Type | Metal |
| Model Name | Onan P4500I |
| Model Number | A058U955 |
| Number of Items | 1 |
| 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 Count |
| Voltage | 120 volts |
| Warranty Description | 3 Year |
| Wattage | 3700 watts |

## Product Details

- **Brand:** Cummins
- **Fuel Type:** Gasoline
- **Included Components:** Generator
- **Item Weight:** 98 pounds
- **Output Wattage:** 3700
- **Power Source:** Gas Powered
- **Recommended Uses For Product:** Camping
- **Special Feature:** Fuel Efficient, Overload Protection, Portable, Remote Start, Super Quiet
- **Voltage:** 120 volts
- **Wattage:** 3700 watts

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71U-KRMOy-L.jpg)

## Questions & Answers

**Q: This looks exactly like the westinghouse 4500 made in china.  is this different and is it made in the us?**
A: Same Generator, just repackaged under the Cummins name.   Save the money and get the Westinghouse.  I purchased the blue one recently and was impressed for the money. I also have the Honda 3000. This is much lighter and provides more power. The build quality is not as nice as the Honda and probably won’t last as long under commercial use, but for use here and there it is hard to justify spending 3 times as much for less power and only slightly louder. The same week mine came in I purchased one for my father.

**Q: So is the 3-year warranty automatic and then you add another 3-year warranty for 120 bucks**
A: The manufacturer provides a 3 year warranty.  Any other warranty purchase is from a third party source, such as Amazon.

**Q: Product specs say 50 Hz -- that's going to be a problem for many devices in North America, right?**
A: It isn’t a common American cycle, things may run on 220-240volt but not on 110v. Unless specified by the manufacturer to operate on both 50Hz and 60Hz, appliances may not operate efficiently or even safely if used on anything other than the intended frequency.

**Q: how quiet is it while running?**
A: just as good as my honda 3000iu gen. My second one of theses with 250 hrs on it without a problem, Good product for the money.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great generator.
*by L***U on September 28, 2026*

I’ve used this for about three months now, camping, and it’s been great. It starts up every time the remote works great, and it gives me the power that I need when I need it.

### ⭐⭐⭐⭐⭐ A little more noise than I thought it would have.
*by F***R on October 12, 2026*

Great little generator for camping. Not as quiet as described I think, but not obnoxious either. Quiet hours, you will most likely have to shut it off.

### ⭐⭐⭐⭐⭐ Tried and true
*by J***A on November 11, 2023*

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.

## Frequently Bought Together

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- Fits Cummins Onan P4500i Inverter Generator Cover (BLACK) COVER ONLY
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-28*