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

2019–2024 Ram 2500/3500 6.7L Cummins | Extruded Tube Aluminum Radiator

The Fifth-Gen Cummins Standard Output Is Still a Serious Truck. Give It a Serious Radiator.

The 2019-and-up Ram 2500 and 3500 with the Standard Output 6.7L Cummins produce substantial torque and put real thermal demands on the cooling system — especially under heavy towing, in hot climates, or with a tune on it. The factory plastic-tank radiator was never designed with meaningful headroom for the kind of sustained high-load use these trucks routinely see. If you’ve already cycled through a factory unit and one or two aftermarket replacements, you know the pattern: a leaking brazed core-to-header joint that fails on a predictable schedule.

This extruded aluminum radiator is engineered specifically for the 2019–2024 Ram 2500 and 3500 with the Standard Output 6.7L Cummins and 68RFE transmission. It drops directly into the factory mounting location with no cutting, no drilling, and no fabrication required.

Note: This unit is designed for Standard Output engines with the 68RFE transmission only. It is not compatible with the High Output 6.7L Cummins or Aisin AS69RC-equipped trucks.

Done replacing radiators? So are we.

Most aftermarket aluminum radiators — including well-known brands — TIG weld only the end tanks and rely on brazed joints where the core meets the header. That junction is exactly where they crack and leak under diesel heat cycling and vibration.

Fluidyne eliminates that failure point entirely with a fully extruded aluminum core — a single-piece design with no brazed tube-to-header joints anywhere in the core. Every tank, fitting, and seam is finished with premium TIG welds throughout. The result is a radiator that is genuinely heavy duty, built to last, and engineered to be the last one you ever put in this truck.

Extruded core. Optimized for the fifth-gen platform’s cooling demands.

The extruded core delivers more effective heat rejection than conventional brazed-tube designs of the same or even higher row count, because every tube is formed from solid aluminum rather than folded and joined sheet. The fin pitch is optimized for the Ram’s factory shroud and fan setup.

Fitment: 2019–2024 Ram 2500 / Ram 3500 | 6.7L Cummins — Standard Output Only | 68RFE Only | Crossflow | 26.75″ core