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Service bulletin 4VZ-H6X8W-06

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 id10124055
Published by NHTSA2017-11-17
Manufacturer's number4VZ-H6X8W-06
Manufacturer's date2016-05-03
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; STRUCTURE:BODY

NHTSA's summary

This technical service bulletin is to supply instructions on increase clearance between exhaust tube and chassis crossmembers

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

Body and frame, Engine, Exhaust and emissions, Exhaust manifold, pipes and muffler

Vehicles listed
SPARTAN ALTERED CHASSIS CABS2011 to 2016

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