The Last Diesel Radiator You’ll Ever Need

Fluidyne Extruded Aluminum Diesel Radiators

Sick of cracked, leaking aftermarket radiators? So are we. For decades, diesel truck owners have settled for radiators that simply can’t take the heat. At Fluidyne, we’re putting an end to that — permanently.

We bring 30+ years of high-performance cooling experience from NASCAR and motorsports to diesel radiators engineered to outperform and outlast traditional designs.

Shop Radiators Technical Details

Built with the same extruded-core technology used in our official NASCAR oil coolers — single-piece core construction removes the header joint, eliminating the #1 failure point in conventional radiators.

Built with NASCAR-Proven Technology

Our extruded tube core is a single-piece design — not a patchwork of thin, brazed tubes. This solid-core construction eliminates the header joint, the common failure point in conventional radiators.

Why Fluidyne Radiators Are Different

  • Extruded Aluminum Core — Single-piece construction for unmatched rigidity, heat transfer, and durability.
  • Race-Proven Durability — Trusted in NASCAR and engineered for diesel duty.
  • Maximum Heat Rejection — Extremely dense core and high aluminum contact area for superior cooling.
  • Proprietary Fin Design — Optimized for airflow, faster heat dissipation, and lower temps under load.
  • Thick, Reinforced Tanks — Built to handle towing, sled pulls, and high-boost performance.

Compatible Diesel Platforms

  • Ford Powerstroke: 6.0L, 6.4L, 6.7L
  • Dodge Ram Cummins: 5.9L, 6.7L
  • Chevy/GMC Duramax: LB7, LLY, LBZ, LMM, LML

Upgrade the Whole System

Pair your Fluidyne radiator with our direct-fit bar-and-plate transmission coolers for complete thermal management — ideal for towing, racing, or heavy-duty daily work.

Shipped Strong. Delivered Safe.

Each radiator ships in a custom heavy-duty box with high-density foam to prevent damage in transit. We invest in premium packaging so your radiator arrives ready to install.

Support & Warranty

Fluidyne products are backed by engineering support and warranty terms — contact Fluidyne for specific warranty and fitment details.

Why Choose Fluidyne?

  • 30+ years of racing pedigree and cooling expertise
  • Official NASCAR-licensed oil cooler supplier
  • Engineered with advanced materials and precision manufacturing
  • Designed for real-world diesel abuse — built to last

Shop & Fitment

Select the correct model and year for your truck. Visit Fluidyne's product pages for part numbers, vehicle-specific fitment, and installation instructions.

View All Radiators Contact Support

Don’t trust your diesel to a folded-sheet budget radiator. Invest in extruded-core technology trusted at 200+ MPH — built to last a lifetime in your diesel truck.

Fluidyne — engineering-driven cooling solutions for performance and heavy-duty applications.