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Service bulletin E273

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 id11008567
Published by NHTSA2024-10-05
Manufacturer's numberE273
Manufacturer's date2024-09-20
Campaign id or software versionE273
NHTSA componentFUEL/PROPULSION SYSTEM

NHTSA's summary

Fix As Fail Part number 2200138 DPF Pressure Sensor has been added to the parts table for the following PACCAR MX engines: •EMY2021 MX13-1 •EMY2022 MX13 •EMY2020 MX13-2 •EMY2021B MX13-1 Part number 2236409 NOx Sensor before catalyst been added to the parts table for PACCAR MX13-1 EMY2020 Per Environment and Climate Change Canada (ECCC) regulations and guidance (Canadian Environmental Protection Act, 1999 (CEPA)), a letter has been provided to owners of Canadian registered chassis that provides a list of emissions components that have been reported (to ECCC) as having a defect.

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

Fuel system

Vehicles listed
PACCAR MX-132020 to 2021

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