We are the Nation’s Trusted Diesel Exhaust Fluid (DEF) Distributor.

Serving your city, your country, or across the nation.


Wholesale DEF Nationwide

We offer Diesel Exhaust Fluid (DEF) storage, dispensing, blending, and pumping equipment. Improve fleet fuel economy and reduce emissions with DEFDiesel, nationwide. See our products here.

DEF Equipment & Accessories

We offer everything you need for DEF dispensing and storage systems. We supply pumps, nozzles, meters, storage, and accessories for any size fleet or need. Learn more here.

Become a Distributor

Are your customers asking for Diesel Exhaust Fluid along with their fuel orders? Stop losing customers to your competition! Apply today to become a DEF distributor and let DEFDiesel do the deliveries for you. Learn more here.

Diesel Exhaust Fluid (DEF) is a non­hazardous solution made of 32.5% urea and 67.5% de­ionized water. It’s purpose is to break down dangerous NOx emissions into nitrogen and water which, alone, are harmless. DEF is necessary on 2010 and later model year trucks, diesel pickups and SUVs to meet Tier 2 Bin 5 emissions standards.

DEF never comes into direct contact with diesel fuel because it is not a fuel additive. Instead, it is stored in a separate tank and sprayed into the exhaust stream of diesel vehicles.

DEFDiesel products meet or exceed all of the International Organization for Standardization (ISO) requirements as well as the stricter emissions standards set forth by the Environmental Protection Agency (EPA) for diesel vehicles driving on U.S. highways.