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Cummins Onan P4500i vs Westinghouse iGen5000 - The Differences

Further down the page, you'll find some explanations regarding the key similarities and differences between the Westinghouse iGen5000 and the Cummins Onan P4500i.

But before checking out explanations regarding their power, portability, and features, here's a table that summarizes the main pros of each of these 2 generators:

Westinghouse iGen5000Cummins Onan P4500i
Westinghouse iGen5000Cummins Onan P4500i
  • Higher running & starting watts
  • Significantly less expensive
  • Lighter
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As the Cummins Onan P4500i and the Westinghouse iGen5000 do not share the same manufacturer, their overall build and technology in use can vary.

Power Comparison

The following charts are provided to show you at a glance how the main specs of the Westinghouse iGen5000 compare to the Cummins Onan P4500i.

  • Power: With a running wattage of 3,900 W, the Westinghouse iGen5000 will allow to power more appliances and tools than the 3,700 running watts of the Cummins Onan P4500i. Moreover, compared to the 4,500 starting watts of the Cummins Onan P4500i, the Westinghouse iGen5000 and its starting wattage of 5,000 W will give more power to start the appliances which require an additional boost to get their motor running.
  • Runtime: At a 25% load, these 2 portable generators offer the same runtime on a full tank. Each of them will be able to deliver power for up to 18 hours.
  • Fuel Efficiency: At the same load as mentioned above (i.e. 25%), both generators will approximately burn 0.19 gallon of gasoline per hour. Inverter generators like these 2 are of the most fuel efficient (and quiet) type.
  • THD: Both generators offer a low THD (<3% for the Westinghouse iGen5000 and <3% for the Cummins Onan P4500i) and are therefore perfectly suitable to safely power your sensitive electronic devices.
  • Noise: Both devices have a noise rating (lower limit) of 52 dBA. If noise is important to you, neither of them will be easier on your ears.

Portability Comparison

  • Bulkiness: As these two products share the same overall bulk, neither of them will really take up less storage space.
  • Weight: With a weight of 98 lbs, the Onan P4500i is slightly less heavy than the iGen5000 (which weighs 104.7 lbs).
  • Portability: Both products benefit from a set of wheels, which greatly enhances their maneuverability. Both offer a telecospic handle, which improves your grip when you wish to move them around.

Feature Comparison

  • Starting System: Both devices can be started either via a pull-start mechanism or an electric starter. Both have the additional ability to be handily remotely started.
  • Outlets: The Westinghouse iGen5000 and the Cummins Onan P4500i both offer 3 AC outlets. None of them feature GFCI outlets. Both of them also feature a DC output. In addition, it is worth noting that they both only produce 120V. For more detailed information regarding all their respective receptacles, refer to the Westinghouse iGen5000's and the Cummins Onan P4500i's product pages.
  • Data Center & Fuel Gauge: Each of these 2 portable generators is equipped with a data center allowing you to conveniently monitor some aspects of the power output. Besides that, for each product, the data center provides a digital fuel gauge allowing to see their fuel level at a glance.

TL;DR

Westinghouse iGen5000Cummins Onan P4500i
Westinghouse iGen5000Cummins Onan P4500i
  • Higher running & starting watts
  • Significantly less expensive
  • Lighter
Show all offers
Show all offers
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You can compare as many generators as you wish. However, for the best results, we recommend you to compare only 2 generators at a time.

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