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
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. Most orders leave the warehouse in 3–5 business days.
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. Most orders leave the warehouse in 3–5 business days.
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.