Catalog › Flash update tree

MaxxForce flash update tree — which calibration replaced which

529 calibration lineages covering 5,450 calibration IDs. The current calibration sits at the top of each group with every calibration Navistar superseded listed under it. 611 of these have a stock file in this catalog and link straight to it.

Type any calibration ID — old or current — to find its lineage. Press / to jump to the box, Esc to clear. Try PMG2SKRC.

How to read this

A solid link is a calibration this catalog holds a stock file for. A dashed box is a calibration ID that appears in Navistar's rules but which we have no file for yet.

These are NavKal's own ECMCFC supersession rules — the same rules the dealer tool uses to decide an ECM is running an out-of-date calibration and offer the newer one. A calibration being superseded does not mean it is bad or that it was recalled; it means Navistar issued a later revision for that engine configuration. If you are matching a file to a truck, the calibration actually in the ECM is what matters, and the identifier reads that out of a file directly.

One caution on direction: a lineage shows what replaced what, not what is interchangeable. A newer calibration can expect different hardware or a different aftertreatment configuration than the one it superseded.