# Service bulletin TSB180139\-111120

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: 10169288
- Published by NHTSA: 2019\-12\-16
- Manufacturer's number: TSB180139\-111120
- Manufacturer's date: 2019\-11\-11
- NHTSA component: FUEL SYSTEM, DIESEL

## NHTSA's summary

This Techical Service Bulletin describes the verification and resolution of external aftertreatment diesel exhaust fluid leaks at aftertreatment diesel exhaust fluid pump filter housing vent. A hard interference between the diesel exhaust fluid dosing unit filter, freeze membrane, and filter housing can cause the freeze membrane to tear and allow aftertreatment diesel exhaust fluid to leak into the filter housing and leak out the filter housing vent. This is an update to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10169288-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10169288-9999.pdf)

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

## Components

Fuel system

## Vehicles listed

- CUMMINS B6.7
- CUMMINS L9
- CUMMINS QSK
- CUMMINS QSK50 DUAL FUEL ENGINE
- CUMMINS X12
- CUMMINS X15

JSON: [/v1/bulletins/10169288](/v1/bulletins/10169288)

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