Cummins Onan P4500i Inverter Portable Generator A074Z436

Take dependable power wherever the road leads with the Onan P4500i Portable Inverter Generator. Engineered to combine efficiency, durability, and clean inverter performance, the P4500i is built for RVers, campers, tailgaters, and homeowners who want reliable power without lugging around a 200-pound generator. At just 98 lbs with built-in wheels and a telescoping handle, it's genuinely portable, while still delivering serious output when you need it.

Easy to Move, Easy to Start

The wheel kit and telescoping handle make rolling the P4500i across a campsite or job site simple, and starting it is just as easy thanks to push-button start, remote start with included fob (up to 109 yards away), and a pull-cord backup. Whether it's pouring rain or you've already settled in for the evening, you can fire it up from inside your rig without stepping outside.

RV-Ready Power You Can Actually Use

The P4500i comes with a 30A TT-30R outlet ready to plug straight into your RV or camper, along with a duplex 120V 20A outlet for tools and accessories and two 5V USB ports for safely charging phones and tablets. With clean inverter output (Total Harmonic Distortion under 3%) and an Automatic Voltage Regulator, you get stable, electronics-safe power for sensitive gear.

Need more juice? The P4500i is parallel capable with another P4500 inverter generator, letting you combine units to reach 50 amps of power for larger demands.

Long Runs, Quiet Operation

A fuel-efficient 3.4-gallon tank delivers up to 18 hours of run time at 25% load (15 hours at 50%), so you can power overnight without constantly refueling. The double-insulated case keeps things quiet, with operational volume as low as 52 dBA, perfect for campgrounds where being a good neighbor matters.

Built to Last with Smart Protection

Underneath, a dependable 7.3 HP 224cc OHV 4-stroke engine drives the system, backed by automatic low oil shutdown and overload protection (circuit breaker) to safeguard against the kinds of failures that take generators out of service early. The clear LED display gives you precise, real-time readings on fuel level, power output, remaining run time, voltage, and lifetime run hours, so you always know where you stand.

Key Features

• 4,500 peak watts / 3,700 running watts of inverter power
• Clean power with <3% THD and Automatic Voltage Regulator
• Push-button + remote start (109-yard range) with pull-cord backup
• 3.4-gallon tank — up to 18 hours run time at 25% load
• RV-ready with 30A TT-30R outlet, duplex 120V 20A, and two 5V USB ports
• Parallel capable — pair with another P4500 for 50A of power
• Quiet operation — as low as 52 dBA
• Telescoping handle & wheels for easy transport
• LED display shows fuel, output, run time, voltage, and lifetime hours
• Automatic low oil shutdown & overload protection
• EPA & CARB emissions compliant; CSA compliant for Canada
• Backed by a 3-year residential warranty

Important Notes

• A carburetor kit is required to operate at elevations above 2,000 ft.
• This product cannot be sold to anyone in CA, ME, VT, NY, or MA.

Specifications

Power Output

• Peak Watts: 4,500 W (gasoline)
• Running Watts: 3,700 W (gasoline)
• Peak Amps @ 120V: 37.5 A
• Running Amps @ 120V: 30.8 A
• AC Voltage / Frequency: 120V / 60 Hz
• DC Voltage: 5V (USB)
• THD: <3%
• AVR: Yes
• Parallel Capable: Yes

Engine

• Horsepower: 7.3 HP
• Displacement: 224cc
• Type: OHV 4-stroke
• Max RPM: 3,600
• Fuel: Unleaded gasoline (10% ethanol or less)
• Fuel Tank: 3.4 gallons
• Run Time: 18 hrs @ 25% load / 15 hrs @ 50% load
• Recommended Oil: SAE 10W30
• Oil Capacity: 20.3 oz
• Low Oil Shutdown: Automatic

Starting & Outlets

• Starting: Electric, Remote, Recoil
• Remote Start Fob: Included (109-yard range)
• AC Outlets: (1) 120V 30A (TT-30R), (1) Duplex 120V 20A (5-20R)
• DC Outlets: (2) 5V USB ports
• Overload Protection: Yes

Noise & Physical

• Operational Volume: As low as 52 dBA
• Dimensions: 24.5" L x 18.25" W x 20.5" H
• Weight: 98 lbs
• Wheel Size: 5.5" dia. x 1.5" thick (kit included)
• Handle: Telescoping

Compliance & Warranty

• Emissions: EPA, CARB
• Canada CSA Compliant: Yes
• Residential Warranty: 3 years