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Service bulletin FRT497

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 id45926
Published by NHTSA1996-04-25
Manufacturer's numberFRT497
Manufacturer's date1995-08-01
Replaces9503
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

NHTSA's summary

MEDIUM TRUCKS WITH CAB-MOUNTED EXHAUST STACK MAY EXPERIENCE THE EXHAUST STACK ATTACHMENTS BREAKING OUT OF THE B-PILLAR SKIN. IF THE B-PILLAR IS CRACKED, REMOVE AND REPLACE IT WITH A NEW B-PILLAR. MODIFY THE INSTALLATION TO A 4-POINT ATTACHMENT INSTEAD OF THE CURRENT 2 POINT VERSION. *SD

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, Exhaust manifold, pipes and muffler

Vehicles listed
FREIGHTLINER FREIGHTLINER

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