# Service bulletin P56049

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: 10154149
- Published by NHTSA: 2019\-03\-04
- Manufacturer's number: P56049
- Manufacturer's date: 2018\-12\-01
- NHTSA component: ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

Operation Name: Hendrickson Trailer Commercial Vehicle Systems Document Name: Product Update \- Air Piloted Valve \(3\-way\) Summary: This document announces a change in suppliers for the VS\-23588 air piloted valve \(3\-way\), and the introduction of a new replacement part number VS\-38689, for use with various Hendrickson air control kits.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10154149-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10154149-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- HENDRICKSON HENDRICKSON

JSON: [/v1/bulletins/10154149](/v1/bulletins/10154149)

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