# Service bulletin TSB200096\-042120

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: 10175209
- Published by NHTSA: 2020\-05\-18
- Manufacturer's number: TSB200096\-042120
- Manufacturer's date: 2020\-04\-12
- NHTSA component: EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of aftertreatment air assisted dosing units and aftertreatment nozzles are being replaced as a result of internal buildup of DEF crystals, but with proper troubleshooting and maintenance, some of these components can be recovered.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10175209-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10175209-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- CUMMINS ISB6.7
- CUMMINS ISL9
- CUMMINS ISM
- CUMMINS ISX15

JSON: [/v1/bulletins/10175209](/v1/bulletins/10175209)

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