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 accepted radiators that can’t take the heat. Fluidyne changes that with extruded-core radiators engineered to outperform and outlast everything else on the market.

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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 designs.

Why Fluidyne Radiators Are Different

  • Extruded Aluminum Core — single-piece construction for unmatched rigidity, heat transfer, and longevity.
  • Race-Proven Durability — trusted in NASCAR and built for real diesel duty.
  • Maximum Heat Rejection — industry-leading core density and aluminum contact area.
  • Proprietary Fin Design — optimized airflow and faster heat dissipation under load.
  • Thick, Reinforced Tanks — designed to withstand towing, sled pulls, and boosted applications.

Compatible 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 transit damage. We invest in premium packaging so your radiator arrives ready to install.

Warranty & Support

Made with racing pedigree and backed by Fluidyne's engineering support. Contact Fluidyne for warranty details and fitment guides.

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

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

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Don’t trust your diesel to a folded-sheet budget radiator. Invest in the same 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.