Cummins Intercooler

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Cummins Intercooler FAQS

Three fitment groups: 2003–2009 (5.9L/6.7L third-gen), 2010–2012 (6.7L with unique mounting), and 2013–2018 (6.7L with updated piping). Each group has separate part numbers.

Bar-and-plate cores are denser, cool charge air 15–20°F more effectively, and handle higher boost. Tube-fin cores offer lower pressure drop. SPELAB bar-and-plate units are 34% thicker than OEM.

No tuning is required. SPELAB intercoolers are direct bolt-on replacements that restore stock-like performance without any ECM changes or calibrations.

Lower production volume and unique mounting geometry for the 2010–2012 LML platform drive higher pricing. These models also require specific piping connections not shared with other years.

Upgrade when running a tune, upgraded turbo, or intake system that pushes boost beyond what the stock intercooler can manage. An intercooler upgrade pairs best with a tuner and exhaust system.