# Service bulletin C1905

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: 10117352
- Published by NHTSA: 2017\-09\-14
- Manufacturer's number: C1905
- Manufacturer's date: 2017\-06\-09
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This Before\-In\-Service Campaign is being issued to address rear crankshaft seals on certain X12 and X15 Engines built in April 2017. Engines on the eligible list have an increased opportunity for a rear crankshaft seal leak. To prevent customer down time, this campaign authorizes certified repair locations to replace the rear crankshaft seal on eligible engines that are not yet in service.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10117352-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10117352-0001.pdf)

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

## Components

Engine

## Vehicles listed

- CUMMINS CUMMINS

JSON: [/v1/bulletins/10117352](/v1/bulletins/10117352)

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