WenmarOpen by Wenmar Pro

Service bulletin WI-267

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 id10057805
Published by NHTSA2015-06-30
Manufacturer's numberWI-267
Manufacturer's date2014-05-23
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

NHTSA's summary

TIFFIN MOTORHOMES: INSTRUCTIONS ON HOW TO INSTALL AND SECURE ALL THE EXHAUST PIPES ON ALL ZEPHYR VEHICLES. *TA

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
TIFFIN ALLEGRO2015
TIFFIN ZEPHYR1999 to 2003
TIFFIN ZEPHYR2005 to 2011
TIFFIN ZEPHYR2013 to 2014

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