CAT Portable Generators

Storm Generator


When Caterpillar builds a machine, we build it to work and to last. Our new line of Cat® RP Series Portable Generators has been designed by the industry leader in both power and heavy equipment. These aren’t sit-in-your-garage generators. Cat portable generators are meant to be taken out, used and put through their paces. With a simple, smart design and that famous Cat ruggedness and durability, it may be the only generator you’ll ever own. Whether you choose the RP3600, RP5500, RP6500E or RP7500E, your Cat RP Series Portable Generator will bring all the power you need anywhere you live, work or play.

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Cat RP Series Portable Generators, just like Cat heavy machines and equipment, are built with a laser-like focus on real-world usability. That means they must not just meet, but exceed industry standards for performance and durability. Thousands of hours of testing – from vibration tests to emissions tests to electrical tests, under a variety of conditions – were required before these generators met Cat standards. Moreover, every aspect of RP Series generators was thought through with on-site performance in mind. The result is a unique, ergonomic design and premium safety features you simply won’t find in any other generator in its class. Our philosophy is simple: Your generator should be tough. Using it shouldn’t be.

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Every piece of equipment we make is built to be put through its paces. But what does that mean in practice? First and foremost, it means building products of unparalleled quality. But it also means backing those products with unmatched support, like a best-in-class three-year warranty* on all models, and a robust library of educational resources to help you get the most out of your RP Series generator. That’s what being a part of the Caterpillar family is all about.

*All new Cat Portable Generators for sale are covered for normal use for a warranty period of two (2) years from the date of original purchase or 1000 operating hours, whichever occurs first. Customers (original purchasers) also have the option to extend the warranty period by one (1) year for a total of three (3) years by registering their Cat generator online within thirty (30) days from the date of purchase.


Cat RP Series Portable Generators come in six different models, each designated by their wattage output. All 6 models meet or exceed US, California and Canada emissions standards.

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To learn more about Cat RP Series Portable Generators, please click on this link or download spec sheets on any of the 6 models by clicking on their individual links below.   


1800 watts running, 2250 watts starting
6 hour run time @ 50% load


3600 watts running, 4500 watts starting
13.5 hour run time @ 50% load


5500 watts running, 6875 watts starting
15 hour run time @ 50% load


6500 watts running, 8125 watts starting
12 hour run time @ 50% load


7500 watts running, 9375 watts starting
11 hour run time @ 50% load


12,000 watts running, 15,000 watts starting
11.7 hour run time @ 50% load

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To have someone contact you about purchasing a Cat RP Series Portable Generator, please fill out and submit the form below.