DEF Distributors​

ROC is a reliable and competitively priced diesel exhaust fluid (DEF) distributor for your diesel fleet. DEF is a non-toxic, high purity solution of urea and water that helps to reduce NOx emissions in Selective Catalytic Reduction (SCR) systems. Offering various sizes such as 2.5 gallon jugs, 55 gallon drums, and 330 gallon totes as well as customized delivery schedules makes ROC the preferred provider for this essential product!

Secure your supply with the leading Diesel Exhaust Fluid distributor today

ROC stands apart as one of the most trusted DEF distributors in the West. We combine proven safety, reliable delivery, and competitive pricing to keep your fleet compliant and on the move. From flexible delivery schedules to tailored bulk DEF solutions, we back you with the same integrity, honesty, and performance that drive every part of our business. Reach out to us for inquiries, and we’ll map out a plan that works for your operation.

As a respected “near me” bulk diesel exhaust fluid distributor, we also supply much more than DEF. Browse our catalogue of gasoline, diesel, and branded fuel products to keep every corner of your business covered. When you need a supply partner you can count on, ROC is ready to deliver — every mile, every time.

FAQs

What is Diesel Exhaust Fluid (DEF), and why is it needed?

DEF is a non-toxic, high-purity urea solution that breaks down harmful NOx emissions in diesel engines into harmless nitrogen and water. It’s vital for meeting EPA emissions standards and keeping modern diesel engines compliant. Working with a reliable diesel exhaust fluid distributor helps fleets keep DEF tanks topped up and operations running clean and legal, mile after mile.

What DEF packaging options are available?

As a trusted DEF fluid distributor, ROC offers DEF in 2.5-gallon jugs, 55-gallon drums, and 330-gallon totes, with flexible bulk DEF delivery for larger fleets. Our team works with you to find the best packaging mix to match your usage and storage space. This makes us a practical local DEF distributor for operations looking for efficiency and value.

Is ROC DEF certified to ISO 22241 standards?

Absolutely. Our DEF meets ISO 22241 specifications, guaranteeing purity and quality. As your reputable “near me” DEF distributor in the Western US, we source DEF that protects your SCR systems and keeps your engines compliant. Using DEF that meets this standard prevents damage and avoids costly downtime, which is why so many fleets trust ROC for consistent quality.

How should I store DEF properly?

Store DEF in sealed, dedicated containers away from direct sunlight, extreme heat, or freezing temperatures. A cool, dry space extends shelf life and keeps it within spec. ROC can help with advice on safe storage and bulk handling. Reach out to our support team to make sure your bulk DEF fluids stay fresh and contamination-free.

Can I order DEF in bulk for my entire fleet?

Definitely. As a leading bulk DEF supplier, ROC has the logistics and supply chain to handle large-scale deliveries safely and efficiently. Whether you run a regional fleet or manage multiple sites, our customized schedules keep your operation topped up and compliant.

Do you offer DEF delivery to remote sites?

Yes. Many operators searching for a diesel exhaust fluid distributor “near me” in the region need support beyond city limits. We cover major hubs and remote worksites with dependable DEF delivery. We help you plan ahead and avoid supply gaps.

Why should I choose ROC as my DEF distributor?

ROC brings the credibility and consistency you expect from an experienced diesel exhaust fluid distributor. You’ll get bulk supply options, flexible delivery, and personal service backed by our core values of honesty, integrity, and reliability. With ROC, you’ll always know your fleet has what it needs to stay compliant and on the move.