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Cummins Onan P2500i Inverter Generator - A058U944

Cummins Onan P2500i Inverter Generator - A058U944

4.1 62+ online ratings
Regular price $727.00 USD
Regular price $747.00 USD Sale price $727.00 USD
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Cummins Onan P2500i Inverter Generator - A058U944


Looking for a rugged and reliable generator that is also quiet and portable? The Cummins Onan P2500i inverter gasoline generator offers 2500 peak watts of power in a lightweight, easy-to-carry package. The 1-gallon fuel tank provides 10 hours of run time at 25% load while producing low THD (total harmonic distortion) power that protects your phone, tablet, and other sensitive electronics. With a double-insulated housing, the generator operates as quietly as 52 decibels, which will keep your camping neighbors happy. The onboard LED display keeps you informed on the remaining run time, power output, fuel level, voltage, and lifetime run hours.

These products are not intended to be used as a main or Prime Power (primary source of power) in place of utility power where utility power service is present or where utility power service does not normally exist, regardless of whether a consumer application or commercial application is involved. This application could void the warranty.



  • Built-in carry handle
  • 2500 peak watts/2200 running watts
  • Reliable 3.4 HP 98cc OHV 4-Stroke engine
  • LED Display
  • (2) 5V USB ports, (1) 12V 8A outlet, (1) Duplex 120V 20A 5-20R outlet
  • Dust covers for outlets keep them clean
  • 3-Year Residential Warranty/ 1-Year Commercial Warranty 
  • Neighbor-friendly, quiet operation (as low as 52 dBA)
  • Lightweight: 48 lbs



  • Part Number: A058U944
  • Gasoline Peak Watts: 2500
  • Gasoline Running Watts: 2200
  • Peak Amps at 120V: 20.8 amps
  • Running Amps at 120V: 18.3 amps
  • AC Voltage: 120 Volts
  • DC Voltage: 5 Volts
  • AC Frequency: 60 Hz
  • Parallel Capable: Yes
  • Engine Horsepower (hp): 3.4 HP
  • Starting System: Recoil
  • Engine Displacement: 98cc
  • Engine Type: OHV 4 Stroke
  • Engine RPM Max: 5500
  • Operational Volume: As low as 52 dBA
  • Carburetor Kit Required to Operate at Altitude: Yes, above 2000ft
  • Economy Mode Switch: Yes
  • Fuel Tank Capacity (Gallons/Liters): 1 gal. (3.8 L)
  • Run Time at %25 Load (hrs.): 10 hrs
  • Run Time at %50 Load (hrs.): 8 hrs
  • Overload Protection (circuit breaker): Yes
  • Handle Style: Single
  • Assembled Length in. (mm): 19.75 in. (501.65 mm)
  • Assembled Width in. (mm): 10.5 in. (266.7 mm)
  • Assembled Height in. (mm): 18.25 in. (463.55 mm)
  • Carton Length in. (mm) 21.5 in. (546 mm)
  • Carton Width in. (mm) 12.75 in. (323.85 mm)
  • Carton Height in. (mm): 18.75 in. (490 mm)
  • Dry Unit Weight lb. (kg): 48 lb. (21 kg)
  • Shipping Weight Ib. (kg): 56 lb. (24 kg)






















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62+ online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing

Summary of Online Reviews


62+ online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing

What people like

The Cummins Onan P2500i Inverter Generator is a popular choice among users who appreciate its quiet operation and fuel efficiency. Its lightweight and compact design make it easy to transport and store, and the intuitive control panel adds to its user-friendliness. While some users report experiencing occasional issues with the generator's stability and noise levels, the overall positive reviews highlight its reliability and performance. The extended warranty and excellent customer support offered by Cummins are also highly valued.


  • Easy to Move and Operate (8+ Reviews): Many reviewers positively comment on the compact design that makes it easy to store and move around. They also like the ease of use, including a user friendly control panel and straightforward startup process.
  • Quiet Operation (5+ Reviews): Multiple reviews praise the generator's quiet operation, highlighting its ability to run without causing excessive noise, making it suitable for camping, RV use, or powering electronics in noise sensitive areas.
  • Fuel Efficient (5+ Reviews): Several users comment on the generator's fuel efficiency, saying that it can run for extended periods on a single tank of gas, reducing fuel consumption and the need for frequent refueling.
  • Stable Power Output (4+ Reviews): Some users mention the generator's ability to deliver consistent and stable power, ensuring reliable operation for powering sensitive equipment like electronics or appliances.


  • Occasional stability concerns
  • Minor noise issues reported (generally quiet)
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