2019–2024 Ram 2500 / 3500 6.7L Cummins High Performance Extruded Tube Radiator

2019–2024 Ram 2500 / 3500 6.7L Cummins

Fits 68RFE & Aisin AS69RC | Standard Output & High Output

Sick of cracked plastic tanks and leaking aftermarket radiators? So are we. The 2019–2024 Ram 6.7L Cummins — especially High Output trucks — produce massive torque. And torque creates heat. Add heavy towing, tuning, hot climates, or long grades, and factory cooling margins disappear quickly. At Fluidyne, we’re putting an end to weak diesel radiators — permanently.

Over 30 Years of Proven Performance

For more than three decades, Fluidyne has led the industry in high-performance cooling systems. Our products have powered championship-winning NASCAR teams, extreme off-road builds, and high-horsepower street machines.

When it comes to cooling under pressure, nobody does it better.

Now we’re bringing that same elite-level technology directly to your 2019–2024 Ram 2500 or 3500 Cummins.

Built with NASCAR-Proven Extruded Tube Technology

Most aftermarket aluminum radiators use thin, folded and brazed tubes — creating a header joint that becomes the number one failure point under diesel vibration and heat cycling.

Fluidyne is different.

Our extruded tube core is formed from a single piece of aluminum — eliminating the weak header joint entirely. The result is unmatched structural rigidity, superior heat transfer, and long-term durability under real diesel load.

It’s the same core technology used in our official NASCAR oil coolers — now engineered for your Cummins.

Why This Radiator Is Different

• ✅ Extruded Aluminum Core
  Single-piece tube construction for maximum strength and heat rejection.
• ✅ Race-Proven Durability
  Trusted at 200+ MPH. Built for heavy towing and high-boost Cummins trucks.
• ✅ Maximum Heat Rejection
  The densest core and highest aluminum contact surface area in the industry.
• ✅ Proprietary Fin Design
  Optimized airflow and faster heat dissipation under sustained load.
• ✅ Thick Tanks
  Designed to handle diesel vibration, cylinder pressure, and real-world abuse.

Engineered Specifically For

• 2019–2024 Ram 2500 6.7L Cummins
• 2019–2024 Ram 3500 6.7L Cummins
• 68RFE Equipped Trucks
• Aisin AS69RC Equipped Trucks
• Standard Output Engines
• High Output Engines

No guesswork. No compatibility issues. Built to work with your truck’s cooling and transmission configuration.

Built for Real-World Diesel Use

• Heavy towing and fifth wheels
• Commercial hauling
• High ambient temperatures
• Tuned applications
• Long mountain grades
• High-boost performance builds

If your truck works hard, your cooling system should be overbuilt — not just adequate.

Upgrade the Entire Cooling System

Pair your Fluidyne radiator with our direct-fit bar-and-plate transmission coolers for complete thermal management — ideal for 68RFE and Aisin trucks pulling heavy loads.

Control coolant temperatures. Control transmission temperatures. Protect your investment.

Shipped Strong. Delivered Safe.

Each radiator ships in a custom heavy-duty box with high-density foam to prevent damage in transit. Shipping costs slightly more because we refuse to gamble with your investment.

When it arrives, it’s ready to install.

Why Choose Fluidyne

• 30+ Years of Racing Pedigree
• Official NASCAR-Licensed Oil Cooler Supplier
• Advanced Extruded Core Construction
• Built for Diesel Torque and Heat
• Backed by Generations of Performance Engineering

Don’t trust your 6.7L Cummins to a folded-sheet budget radiator.

Invest in the same cooling technology trusted at race speeds — built to last a lifetime in your Ram 2500 or 3500