# Service bulletin TSB190032\-022220

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.

- Type: Service bulletin
- NHTSA id: 10154973
- Published by NHTSA: 2019\-03\-25
- Manufacturer's number: TSB190032\-022220
- Manufacturer's date: 2019\-02\-22
- NHTSA component: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of bolts that are used to fasten the enclosure onto the generator set are either fractured or missing. The bolts sometimes appear to be intact and then break upon removal. The bolts are suspected to be failing due to hydrogen embrittlement.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10154973-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10154973-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Alternator

## Vehicles listed

- CUMMINS CUMMINS

JSON: [/v1/bulletins/10154973](/v1/bulletins/10154973)

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