# Service bulletin CRS 512

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: 10190021
- Published by NHTSA: 2021\-04\-07
- Manufacturer's number: CRS 512
- Manufacturer's date: 2021\-03\-16
- NHTSA component: EQUIPMENT; ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

Cummins has launched a customer satisfaction campaign for certain Cummins B6.7 diesel engines produced between August 26, 2020 and October 5, 2020, that may have been installed. Some of the affected vehicles may contain engine valve springs that could experience premature failure. As a result, the engine may have a loss of power and will result in a need for repairs. Contact your authorized Cummins Distributor for an appointment to correct the condition as described in the attached communication. The vehicle owner is responsible for making arrangements to have the work completed. Altec is not able to complete this repair. All work must be completed by an authorized Cummins Distributor.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10190021-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10190021-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- 2020 to 2021 ALTEC AERIAL DEVICE

JSON: [/v1/bulletins/10190021](/v1/bulletins/10190021)

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