Contact us today877.688.6812

Contact us today877.688.6812

After Hours Construction / Truck Service: (800) 952-7767

After Hours Power Service: (877) 891-4181

After Hours Power Rental: (800) 736-8121

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Cat® Generator Sales, Rental, and Service in Elmhurst, IL

615 West Lake St. Elmhurst, IL 60126

Phone: (630) 530-2200
Fax: (630) 530-0998
24/7 Emergency Services: (877) 891-4181 
Email Address:

Shop Service: M-F: 6:30am-5:00pm
Parts: M-F: 8:00am-5:00pm
Parts Express: (800) 239-0400

Generator Sales, Rental and Service for the Chicago Area 

Where would your business be without reliable power systems equipment? When you’re searching for a trusted local source for power generation solutions, Patten Cat offers Cat® diesel generators for sale, emergency generator service, automatic transfer switch service and uninterruptible power supply (UPS) service in Elmhurst, IL and the surrounding areas. Whether you require marine generator service for your commercial fleet or generator load bank testing and switchgear inspection and maintenance, we offer a full range of solutions to power your generation demands. 

When you need a temporary generator or power system solution, and purchasing equipment isn’t in the cards, the rental market often makes the most sense. Patten Power Rental in Elmhurst, IL is your go-to source for industrial and diesel generator rentals, air conditioning rentals, ground heater rentals, air compressor rentals and more. Whether you need temperature control rentals for an outdoor event or emergency generator rentals for responding to an unexpected power outage, you’ll find everything you require within our inventory. 

Patten Power Systems not only sells Cat and Olympian generators, we also provide everything from basic maintenance to critical component repairs. Our highly skilled technicians are capable of servicing all generator manufacturers, applications and configurations. From preventive maintenance for UPS to diesel engine pump services, we’re a single source for all of your needs. 

As your local authorized Cat dealership, we provide industry-leading service, value and selection in gas and diesel generators for sale or rent.

For more information on power system products, paralleling switchgear services and generator load bank testing, give us a call at 630-530-2200 or visit Patten Power Systems at 615 W. Lake Street, Elmhurst, IL 60126.

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Altorfer, Inc. Logo

Altorfer, Inc. is proud to announce the acquisition of Patten Cat effective May 9, 2018. We look forward to supporting all your equipment and product support needs by providing the quality products and excellent service that you have come to expect from the Caterpillar family. Please be aware that the Patten Cat website will close soon and all traffic will be pointed to Thank you for giving us the opportunity to partner together with you for continued success.