# Service bulletin WB\_557

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: 10193314
- Published by NHTSA: 2021\-05\-13
- Manufacturer's number: WB\_557
- Manufacturer's date: 2021\-04\-16
- NHTSA component: POWER TRAIN; STRUCTURE

## NHTSA's summary

Elkhart Brass and Akron Manufacturing ball\-type intake and discharge valves have been submitted for warranty claims due to leaks within the seal of the valve. Neither manufacturer classifies a valve seal leak to be a malfunction of the product and therefore do not consider a seal leak to be a warrantable claim.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10193314-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10193314-9999.pdf)

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

## Components

Body and frame, Transmission and driveline

## Vehicles listed

- 2020 PIERCE ARROW XT
- 2020 PIERCE DASH
- 2020 PIERCE ENFORCER
- 2020 PIERCE IMPEL
- 2020 PIERCE QUANTUM
- 2020 PIERCE VELOCITY

JSON: [/v1/bulletins/10193314](/v1/bulletins/10193314)

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