Do you want to have a CDL? About Us

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do you have the DRIVE to take it on and be one of the corner stone of your country?

Will help you pass the CDL TEST: Air Brakes, Combination Vehicles, Doubles and Triples, Tanker Vehicles, HAZMAT (Hazardous Materials), School Bus and Transporting Passengers CDL Endorsement Exams. And now members have a choice to take tests in English or can habla Espanol! There is a Class A CDL practice test package and a HAZMAT endorsement test available in Spanish online at or available for CDL download as an (.pdf ) Adobe Reader file.

Your Lubricant needs for all machinery

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Fueling Workforces, Since 1929

Oils & Lubricants for Industrial, Automotive, Diesel and Aviation, Quality Lubricants & Fluids since 1929

Keller Heartt has been a full-service oil and lubricant provider in the Midwest, for over 80 years. As a privately owned family company, we have grown into one of the leading distributors of bulk oil solutions in the country. With distribution centers in both Chicago and Milwaukee, we now ship everywhere in the continental United States.

Thanks to our long-standing history, we’ve grown our distributor partnerships over time, securing some of the lowest wholesale prices online for leading brands like Shell, WD-40, American Lubrication, Houghton, Oil Eater and more.

Keller Heartt is also home to TRUEGARD lubricants, one of the industry’s most affordable lubricant brands. Our full line-up features bulk sizes of everything from brake cleaner and hydraulic oil to motor oil and propylene glycol, all only a call away.

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