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Service bulletin TSB130052-081220

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 id10164725
Published by NHTSA2019-09-16
Manufacturer's numberTSB130052-081220
Manufacturer's date2019-08-12
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

NHTSA's summary

This Technical Service Bulletin announces a new heavy duty tapered bearing fan support in place of the standard duty fan support. Certain applications have seen an increased number of standard fan support bearing failures. The heavy duty fan support is better suited for applications with increased failures of standard fan supports. The new heavy duty tapered bearing fan support is a bolt on replacement for the standard support. This is an update to a previously submitted communication.

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

Equipment and accessories

Vehicles listed
CUMMINS ISB59
CUMMINS ISB6.7
CUMMINS ISBL9
CUMMINS ISC8.3

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