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Service bulletin C2498

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 id10203194
Published by NHTSA2021-11-08
Manufacturer's numberC2498
Manufacturer's date2021-09-28
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Campaign is being issued to replace the engine dataplate(s) on certain L9 CM2350 L116B engines, specifically select PACCAR PX9 units. The dataplates on eligible engines were printed with valve lash settings that are difficult to read due to overlapping text.

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 L9

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