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Service bulletin E251

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 id10180728
Published by NHTSA2020-10-06
Manufacturer's numberE251
Manufacturer's date2020-09-09
NHTSA componentENGINE; EQUIPMENT

NHTSA's summary

Information only: The purpose of the bulletin is to inform dealers about the potential mismatch between the service interval of the installed OCV filter and the service interval published in the MX-11 and MX-13 operator's manuals. The operator's manuals only list the extended life filter service interval. A standard life interval filter may have been installed during manufacturing or during a service event.

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, Equipment and accessories

Vehicles listed
PACCAR MX-112018 to 2020
PACCAR MX-132018 to 2020

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