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Service bulletin C2051A

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 bulletin
NHTSA id10158757
Published by NHTSA2019-04-22
Manufacturer's numberC2051A
Manufacturer's date2019-03-29
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

This campaign is being issued to address a calibration update in certain X15 CM2350 X116B engines ONLY. This document enables authorized repair locations to calibrate the engine control module (ECM) to the latest revision. This is an update to a previously submitted communication.

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, Exhaust and emissions, EGR valve

Vehicles listed
CUMMINS X15

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