WenmarOpen by Wenmar Pro

Service bulletin TSI-13-12-21

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 id10054103
Published by NHTSA2013-12-20
Manufacturer's numberTSI-13-12-21
Manufacturer's date2013-11-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE

NHTSA's summary

NAVISTAR: INSTALLATION PROCEDURES FOR EXHAUST MANIFOLD RING SEAL FOR STANDARD TORQUE TRUCKS DUE TO AN EXHAUST LEAK FROM EXHAUST MANIFOLD FEY RING JOINTS. MODEL MAXXFORCE. NO YEARS LISTED. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Exhaust and emissions

Vehicles listed
NAVISTAR NAVISTAR

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