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Service campaign C7131

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11023889
Published by NHTSA2025-10-04
Manufacturer's numberC7131
Manufacturer's date2025-09-03
Campaign id or software versionC7131
NHTSA componentENGINE

NHTSA's summary

This Warranty Field Campaign is being issued to address a potential concern for engine performance relative to the Wastegate Control System functionality on certain X15N engines. This field action authorizes certified repair locations to replace the Wastegate Control Valve and Block and update the Engine Control Module calibration on eligible engines.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
CUMMINS X15N

Listing a model year does not mean every vehicle of it is concerned: the document says which.