The 2019+ Cummins: Known Issues, Proven Fixes. The 2019 and newer Cummins engines have become infamous among diesel owners-widely considered the dark ages of the platform due to significant reliability issues. From camshaft failures to weakened engine blocks, these trucks haven't lived up to the legacy Cummins is known for.

That's why at Choate Engineering Performance, we don't just repair-we completely overhaul and restore the durability you expect. After extensive R&D, we determined the best solution is to retrofit the entire engine back to the reliable 2018 platform.

We replace the problematic lightweight 2019+ block (which is 75 lbs lighter due to material being removed from critical areas) with the solid cast iron block used in 2018 models-a major step in restoring strength and longevity.

Instead of using the roller lifters and matching camshaft found in 2019+ models, we install the more proven flat tappet lifters and 2018 camshaft. This, along with other trusted 2018 parts, ensures your build holds up like the Cummins name should.
What We Do Differently:

• 2018 Cast Iron Block – No more thin, lightweight block from 2019+
• Flat Tappet Lifters – Replacing roller lifters that commonly fail
• 2018 Camshaft – Better reliability and wear resistance
• Critical Material Restored – No weakened components from weight cuts
• 2019+ Parts Only Used for Fitment – Everything else retrofitted for strength
• Proven R&D – Backed by hours of testing and discussion (watch full breakdown in the podcast below)
• Choate Engineering Performance restores the power and trust you've always counted on-the right way.