# Service bulletin TCH\-022\-005

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: 10178149
- Published by NHTSA: 2020\-08\-07
- Manufacturer's number: TCH\-022\-005
- Manufacturer's date: 2020\-07\-20
- NHTSA component: SERVICE BRAKES, AIR; SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

Bendix Spicer Foundation Brake LLC \(BSFB\) has discovered that a small number of new\-gen lightweight steer axle drum brakes installed on PACCAR® \(Peterbilt® \& Kenworth®\) vehicles built between 2015 \- 2019 may have cracks in the spiders \(mounting plates\). Vehicles that fall within these parameters, or have been serviced with the part numbers listed below, must be inspected for the possibility of cracked spiders. Use the inspection procedure detailed below. Vehicles with air disc brake steer axles, or drum brake part numbers not shown below, are not a part of this bulletin.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178149-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178149-9999.pdf)

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

## Components

Brakes

## Vehicles listed

- BENDIX WHEEL ENDS

JSON: [/v1/bulletins/10178149](/v1/bulletins/10178149)

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