Diesel done right.

H2 Supply Co. is a Texas-built diesel performance shop. We sell the same parts we run on our own trucks — deletes, tuners, fuel systems, intakes, exhaust, and complete care packages — for Cummins, Duramax, Powerstroke, Nissan Cummins, and EcoDiesel platforms.

Aggressive but reliable.

We don't sell vaporware. Every kit on this site is something we've installed, dyno'd, and stood behind. If a part doesn't make your truck faster, cleaner-running, or easier to live with — it doesn't make the catalog.

Why we're different

• Real trucks, real testing. Every care package is validated on our own builds before it ships to customers.
• Texas-based support. Call (512) 779-0607 and get a human who actually wrenches.
• Fast shipping. Most orders ship same or next business day from Texas.
• Dealer pricing available. Shop owners and installers — apply for dealer access.

Contact

Questions before you buy? Reach out or call (512) 779-0607.