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Service bulletin E261

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 id10172035
Published by NHTSA2020-03-04
Manufacturer's numberE261
Manufacturer's date2020-02-14
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Non-Safety Campaign: Peterbilt has determined that certain vehicles equipped with a PACCAR MX-13 EPA2017 engine may have a faulty oil module filter cap. The plastic retaining tabs on the cap could break off and enter the engine oil. An improved oil thermostat is also available for this same population of vehicles and will be installed at this time. Resoluton is to replace the defective oil module filter cap and thermostat.

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
PACCAR MX-13
PACCAR MX-132017

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