Cummins Onan P11000iTF Portable Inverter Generator — 49-State Model (Not for Sale in California)
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At a glance
- Running Watts (Gas)
- 9,000 W
- Peak Watts (Gas)
- 11,000 W
- Running Watts (LP)
- 8,100 W
- Peak Watts (LP)
- 10,000 W
- Running Watts (NG)
- 7,200 W
- Peak Watts (NG)
- 8,800 W
- Fuel
- Tri-Fuel (Gasoline / Propane / Natural Gas)
- Voltage
- 120/240V
- Harmonic Distortion
- < 3% THD
- Dimensions
- 30.3 x 25 x 27 in
- Weight
- 219 lb (dry)
- Start
- Electric / remote
- Transfer-Switch Ready
- Yes (ATS sold separately)
- Emissions
- EPA compliant
Product specs
- Dimensions
- 30.3 x 25.0 x 27.0 in
- Weight
- 219 lbs
- Key specs
- Starting watts: 11000 (gas) / 10000 (LP) / 8800 (NG) Running watts: 9000 (gas) / 8100 (LP) / 7200 (NG) Fuel: Tri-fuel (gasoline / propane / natural gas) Run time: 16.5 hrs @ 25% (gas) Engine: 457cc
Why this generator
- Tri-fuel: gasoline, propane, or natural gas
- 120/240V with transfer-switch outlet for whole-home backup
- Built-in carbon monoxide (CO) sensor
- Electric and remote start
- Clean power (<3% THD) for sensitive electronics
Everything you need to know
The Cummins Onan P11000iTF is a 11,000-watt portable inverter generator built for real-world power on the move — camping and RVs, tailgating, the jobsite, and emergency home backup for the essentials when the grid drops.
Clean Inverter Power for Sensitive Electronics
Inverter technology produces clean, stable sine-wave power (low total harmonic distortion) that's safe for laptops, phones, TVs, and other sensitive electronics — power a conventional open-frame generator can't guarantee. It also runs quieter and lighter than conventional units of similar output.
Tri-Fuel Flexibility — Including Natural Gas
The P11000iTF runs on gasoline, propane, or natural gas. Connect it to a home natural-gas line and it can run continuously without refueling — a rare capability in a portable and a real advantage for extended home backup. Propane stores for years for emergency readiness, and gasoline is there when you're off-grid.
Ready When You Need It
With 11,000 starting watts, the P11000iTF comfortably powers what matters in an outage — refrigerator or freezer, lights, fans, phone and laptop chargers, a window AC or sump pump — and on a job it keeps tools running where there's no outlet. Genuine Cummins Onan build quality means it starts when you ask it to, year after year.
Please note: this is the 49-state model and is not certified for sale in California.
Genuine Cummins Onan, Shipped Free
This is a genuine Cummins Onan portable, backed by the Cummins factory warranty. Total Generator Pros ships it free within the contiguous United States, with real generator experts a phone call away before or after the sale.
- 11,000 starting watts
- Inverter technology — clean, electronics-safe power
- Tri-fuel: gasoline, propane, or natural gas
- 49-state model (not for sale in California)
- Genuine Cummins Onan — factory warranty
- Free shipping (contiguous US)
- Part Number: A078C500
Frequently asked questions
Does the price include installation?+
No — the online price covers the unit shipped free to the lower 48. Professional installation is available in NC & SC on a quote basis; outside that area we'll help you find a qualified local installer.
How fast does it ship?+
Free curbside / liftgate shipping to the contiguous 48 states. Typically ships in less than 2 weeks.
What warranty is included?+
5-year limited factory warranty, registered and supported directly through Cummins.
Is financing available?+
Yes — 0% APR financing is available on qualifying orders. Ask us for details before checkout.
Free curbside shipping
Liftgate delivery to the lower 48. Typically ships in less than 2 weeks.
Install help, no upsell
We size, spec, and connect you with a vetted local installer — or talk your contractor through it for free.
Real Cummins warranty
Full 5-year limited warranty — registered and supported through Cummins directly.