WenmarOpen by Wenmar Pro

Service bulletin 21504

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 id10201754
Published by NHTSA2021-10-01
Manufacturer's number21504
Manufacturer's date2021-09-08
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING

NHTSA's summary

This VER will involve reviewing diagnostic codes, inspection of the EGR valve / EGR System, and may include EGR valve replacement. Only models with 2012 model year MaxxForce 13 engines and are registered in California or have California apportioned registration.

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
INTERNATIONAL LONESTAR2013
INTERNATIONAL PAYSTAR2013
INTERNATIONAL PROSTAR2013 to 2014
INTERNATIONAL TRANSTAR2013 to 2014
INTERNATIONAL WORKSTAR2013

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