Cummins Onan P4500i 3700W Continuous, 4500W Peak, Gas Portable Inverter Generator, Quiet Generator with Electric Start, Remote Control, RV Ready, EPA
SKU: A074Z436
The Cummins Onan P4500i is a professional-grade digital inverter generator built for those who demand reliable, clean, quiet, and portable power. Use it on the road, at the campsite, on the jobsite, or as a home backup solution. It’s powered by a 224cc OHV 4-stroke Cummins Onan engine able to continuously output 3.7kW and up to 4.5kW when needed. The P4500i delivers stable, inverter-quality power that protects your most sensitive electronics.
Specifications:
- 3.4 gallon gasoline tank runs for 18 hours at 25% load
- Push button or remote control start with a backup pull cord
- Safe for sensitive electronics such as laptops, audio systems, and security systems.
- Two 5V USB-A ports, one 30A TT-30R outlet, one 120V 20A (NEMA 5-20R) receptacle
- 7.3HP 224cc OHV 4-Stroke engine
- 52dB operation
- Continuous output: 3.7kW
- Peak output: 4.5kW
- Weight (empty): 98lbs
- Dimensions (H×W×D): 20.5×24.5×18.25in
- Not for sale to the state of California, consider the IDF Model
| Location & Stock | Fulfillment Options |
|---|---|
| Las Vegas, NV SW Distribution Center - Will Call Available Out of stock | ✗ Currently out of stock at this location |
| Hayden, ID Branch Office - Will Call Available 2 units available | ✓ Will call pickup available ✓ Ships within 1 business day |
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Cummins Onan P4500i Inverter Generator EPA Overview
The Cummins Onan P4500i includes a telescoping handle and built-in wheels for maximum portability while still delivering up to 4.5kW to power most household appliances and power tools. It includes three starting options: a push start button, a remote key fob, and a backup pull cord. The 3.4 gallon fuel tank delivers up to 18 hours of run time at 25% load while operating at 52dB. This generator can power an RV campsite or provide backup power during an outage.
Key Features of the Cummins Onan P4500i
- Powers both large and sensitive electronics, including RV air conditioners, power tools, phones, refrigerators, and LED lights.
- Operates as quietly as a normal conversation (52dB).
- 18-hour run time at 25% load.
- The digital display shows remaining fuel level, estimated run time, current power load, voltage, and lifetime run hours.
- It’s possible to parallel multiple units for increased output.
- Includes a dedicated 30A RV outlet for direct connection to most RVs and campers.
- Includes a traditional home outlet and two USB ports.
- The telescoping handle and wheels make it easy to transport.
- EPA compliant for use in the contiguous United States (not for sale in California).
Best Use for the Cummins Onan P4500i
The Cummins Onan P4500i delivers clean power up to 4.5kW, making it an ideal power source for many situations.
- RVs and Camping
- Motorsports and Tailgating
- Home Emergency Backup
- Remote Jobsite Power
- Outdoor Events and Food Service
Solar and Battery System Compatibility
While the Cummins Onan P4500i is a gasoline-powered generator, it plays an important complementary role in hybrid solar and alternative energy systems. You can use it in a residential or off-grid solar system to charge batteries, boost power output, or provide backup power on days with little sun.
Frequently Asked Questions
A conventional generator produces AC power directly from the engine at a fixed speed, which can result in voltage fluctuations. An inverter generator converts the AC output to DC and then back to clean AC through a digital inverter circuit, resulting in a stable, clean sine wave for sensitive electronics like laptops, phones, and modern appliances.
Yes, provided it is within the Generator’s specifications. Most standard rooftop RV air conditioners require 2.8-3.5kW (with higher starting surge), which is within the P4500i's 3.7kW continuous output.
Yes. The digital inverter technology produces a clean power for nearly any sensitive device.
No. The P4500i produces carbon monoxide (CO) and must be operated outdoors in a well-ventilated area and away from windows, doors, and air intakes. Never operate it inside a garage, shed, tent, or any enclosed or semi-enclosed space.
Yes. The P4500i requires an additional high altitude carburetor kit above 2,000ft.
The P4500i runs on gasoline only. Consider the P4500IDF model if propane operation is desired.
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