Cummins Onan Generators
- CM32ZR
- No Inverter
- Gas
- Fixed Mount
- Cummins Onan
- 4000 Running Watts
- 120 Volt Output
- Electric Start
When your old RV Onan quits—maybe right in the middle of your trip—this direct replacement brings back quiet, reliable power for your RV AC, fridge, and more, so you can keep exploring with all the comforts of home, no hookups required.
Highlights
- Direct Replacement: Installs where your old Onan sat—no odd adapters needed.
- Instant Power On Demand: Reliable one-touch starting keeps your RV AC, fridge, and essentials running.
- Extra-Quiet Operation: Soundproofing and enclosed muffler mean quieter days and nights.
- USDA Spark Arrestor Muffler: Safe for national forests and campgrounds—no mods needed for compliance.
- Built for the Long Haul: Get reliable, long-lasting power—perfect for replacing your well-traveled original Onan.
- Worry-Free Protection: Built-in shutoffs for low oil, overload, and engine issues let you relax wherever you park.
Features to know about
Seamless Replacement or Upgrade for Your RV
If your old generator finally gave out, this Onan QG 4000 fits in the same spot as your original. You'll still need to hook up the fuel line, electrical, and exhaust, but the major work is already done for you. Enjoy the comforts you count on—morning coffee, fully charged devices, and lights on at any hour. Plus, it has enough power to run one 13,500 BTU air conditioner, so you can beat the summer heat and stay comfortable wherever you park.
Reliable Power, Every Time
After a long drive or when the weather turns wet and rainy, nobody wants to wrestle with a bulky generator. With one-touch start, automatic choke, and remote switching capability, powering up is always simple, rain or shine. All you have to do is press the power button and relax. And the built-in shutoffs handle low oil, overloads, and engine quirks automatically, so you can settle in for the night with your fridge cold, your CPAP on, and no worries about unexpected shutdowns.
Peace and Quiet, Anywhere
This generator uses sound-dampening technology and a special muffler to help keep things peaceful. You won't have to raise your voice for campfire stories, cut conversations short, or lose sleep to engine noise. It also meets National Park Service noise guidelines, so you can experience brilliant fall foliage in the Great Smoky Mountains or visit the steaming geysers at Yellowstone without worry.
Simple Upkeep for the Real World
From routine oil changes to swapping out the air filter, service is straightforward. No need to be a mechanic—just basic tools and a few minutes are all it takes to keep things running strong for years to come. And with built-in self-diagnostic capability, troubleshooting issues is faster and easier so you can spend less time on maintenance.
Specs:
Dimensions & Weight:
- Overall dimensions: 30" long x 19-3/4" wide x 14-3/8" tall
- Overall weight: 172 lbs
Engine & Performance:
- Model: Cummins Onan OHV E095H gasoline engine
- Design: 4-cycle, OHV, single horizontal cylinder
- Displacement: 18.5 in³ (304 cm³)
- Compression ratio: 8.5:1
- Maximum power: 9.5 bhp (9.6 kW)
- Cooling: cross flow air - pressure type
- Oil capacity: 1.6 qt (1.5 L) with filter
Electrical & Fuel :
- Watts: 4,000
- Frequency: 60 Hz
- Voltage: 120 V
- Amperage: 33.3 amps
- Circuit breakers: (1) 30-amp breaker
- Operating temperature: -20° F to 120° F
- Fuel: gasoline
Mechanical:
- Electric fuel pump with positive fuel shutoff (3 psi)
- Replaceable dry element air cleaner
- Side-draft carburetor
- Remote 12V, 3-wire negative ground starter
- Electronic magneto ignition
- Automatic choke
- 125 in (3.2 m) generator set output leads
Noise:
- Sound level: 68 dBA, meets National Park Service requirements of max 60 dBA @ 50 ft
- Sound dampening housing with enclosed muffler
Safety:
- USDA Forest Service approved spark arrestor muffler
- Low oil pressure, over/under speed, and overcurrent protection
Mounting & Construction:
- Universal mounting tray with 4-point vibration isolation
- Aluminum alloy crankcase with iron cylinder liners
- Aluminum OHV cylinder head, removable
Warranty:
Notes:
- It is required for maintenance that you run your generator for 2 hours a month with a load on it.
- Designed for gasoline use only. LPG and diesel models are available - see CM25ZR, CM54RR, CM62ZR, CM72ZR, CM92ZR,CM64RR, CM44RR, CM74RR, or CM94RR.
- For specialized applications required to meet Tier III Evaporative Emissions of the California Air Resources Board. Effective January 1, 2011, gasoline generator sets on trailers, diesel chassis or any other non-motorized mobile apparatus must have an EVAP generator set, approved tank, EVAP canister, hoses and fittings all meeting the CARB Tier 3 and EPA phase 3 standards and specifications. This law applies in all 50 states.
- This product cannot be shipped to or used in California.
A055E867 Cummins Onan RV Generator - QG 4000 - Gasoline - 4KYFA-6747
Installation Details 
Alternate Instructions
WARNING: Natural Gas/Liquid Propane Gas engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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