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Service bulletin TSB180058-060420

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 id10143387
Published by NHTSA2018-08-06
Manufacturer's numberTSB180058-060420
Manufacturer's date2018-06-04
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of belt noise on certain engines installed in Tiffin Recreational Vehicles. Insufficient belt wrap around the air compressor pulley may result in belt noise/squeal or belt damage on the secondary belt plane which wraps around the air compressor and the high mount Freon Compressor.

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, Drive belts

Vehicles listed
CUMMINS ISV5.0

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