# Service bulletin TSB170066\-032020

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: 10133073
- Published by NHTSA: 2018\-04\-16
- Manufacturer's number: TSB170066\-032020
- Manufacturer's date: 2018\-03\-20
- NHTSA component: FUEL SYSTEM, GASOLINE

## NHTSA's summary

This Technical Servcie Bulletin announces the new diamond\-like coated steel fuel pump plungers. Fuel pump head ceramic plungers have been replaced with steel diamond\-like coated plungers which are more robust and resistant to fractures and breakage. This is a revision to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10133073-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10133073-0001.pdf)

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

## Components

Fuel system

## Vehicles listed

- CUMMINS ISC
- CUMMINS ISL
- CUMMINS ISL9

JSON: [/v1/bulletins/10133073](/v1/bulletins/10133073)

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