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Cummins Generators
Cummins Generators: Home Standby, RV, and Portable Power
Cummins has built its reputation on durability and long service life, and that reputation carries through the full lineup we stock, from portable inverter units to whole-home standby systems. As one of the most recognized generator brands in the USA, a Cummins generator is a name buyers trust when they want a unit built to last well beyond a single storm season. The Home Standby series is manufactured domestically, one of the few standby generator lines still built in the USA, which matters to customers who prioritize American manufacturing alongside performance.
Home Standby Generators for Whole-Home Backup
The Quiet Connect series, including the RS13A, RS17A, and RS20AC, represents Cummins' flagship line for permanent home backup. These Cummins generators install alongside an automatic transfer switch and kick in within seconds of a power outage, running on natural gas or propane without any manual intervention. For buyers who want power restored automatically rather than manually starting a portable unit during a storm, this is the category built specifically for that scenario. Larger diesel options, like the C20D6, extend that same standby reliability to buyers who need a fuel-flexible, heavy-duty setup.
Portable and RV Generators for Travel and Backup
The Onan QG and QD series covers RV owners specifically, with propane, gasoline, and diesel options ranging from 2,500 to 12,500 watts depending on what a given rig requires. These units are CARB-compliant, which matters for anyone traveling to or through California. On the portable side, the Onan P-series, including the P4500iDF and P9500DF, offers dual-fuel inverter generators built for home backup or job site use, giving buyers cleaner power output than a standard non-inverter generator Cummins customers might otherwise consider.
Frequently Asked Questions
What's the difference between the Onan RV generators and the home standby models?
The Onan QG and QD series is built specifically for RV applications, with compact sizing and CARB compliance for travel across state lines, while the RS series Quiet Connect generators are designed for permanent home installation with an automatic transfer switch. Trying to use an RV generator for whole-home backup, or a standby unit for RV travel, generally isn't practical given the differences in mounting, fuel setup, and portability. Matching the right series to your actual use case is the more important decision than comparing wattage alone.
Do I need a transfer switch with a Cummins home standby generator?
Yes, a home standby generator like the RS17A or RS20AC requires a transfer switch to safely connect to your home's electrical panel and switch power sources automatically during an outage. Cummins offers matching automatic transfer switches, including 100-amp and 200-amp aluminum enclosure options, sized to pair with specific generator models. Installing a standby generator without a properly rated transfer switch isn't a safe or code-compliant setup, so this is generally treated as a required component rather than an optional accessory.
Are Cummins generators actually made in the USA?
Many of Cummins' most popular residential and commercial units are manufactured domestically, with major facilities in Fridley, Minnesota and Elkhart, Indiana handling generator and power system production, alongside engine manufacturing in Jamestown, New York and Whitakers, North Carolina. Cummins is headquartered in Columbus, Indiana, though the company also operates manufacturing plants internationally for certain engine and generator models. For buyers specifically prioritizing domestic manufacturing, the home standby line is generally the strongest match.
Will a Cummins generator be ready in time if I order right before a storm?
Overnight shipping isn't realistic for generators of this size, since most manufacturers don't offer expedited freight and rush shipping costs can run several times the price of the unit itself. Ordering as soon as a storm system starts forming in the Atlantic gives the generator time to arrive, and for standby units, additional time to schedule installation before the storm hits. Waiting until landfall is imminent is one of the most common mistakes we see from buyers during hurricane season, particularly with standby units that need professional installation.
