# Service bulletin 59\-001

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: 10144967
- Published by NHTSA: 2018\-09\-24
- Manufacturer's number: 59\-001
- Manufacturer's date: 2018\-08\-08
- NHTSA component: STRUCTURE

## NHTSA's summary

Non\-Safety Campaign\- JOST International has concluded a possibility exists that one production 5th wheel built with a prototype component was installed on a Kenworth chassis

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10144967-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10144967-0001.pdf)

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

## Components

Body and frame

## Vehicles listed

- 2018 KENWORTH T680
- 2018 KENWORTH W900

## Other bulletins for the same vehicles and component

- [43\-066](/bulletins/10173583.md), 2020-04-07, Service bulletin: STRUCTURE. DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank part number M86\-6221\-003\*\*\(TANK\-DEF MEDIUM ASSY\) and M86\-6222\-003\*\*\(TANK\-DEF LARGE, ASSY\). Resolution is to resolve the vibration on the tank cover by adding bottom tank washers.

JSON: [/v1/bulletins/10144967](/v1/bulletins/10144967)

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