# Service bulletin KC\-2021

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: 10180411
- Published by NHTSA: 2020\-09\-30
- Manufacturer's number: KC\-2021
- Manufacturer's date: 2020\-09\-25
- NHTSA component: WHEELS:HUBCAP/COVER

## NHTSA's summary

Mack Chassis \- Stemco Hubcap Plug Will Not Stay In

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180411-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180411-9999.pdf)

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

## Components

Wheels

## Vehicles listed

- 2016 MACK GRANITE \(GR\)
- 2017 to 2021 MACK GRANITE \(GR\)
- MACK GU

## Recalls for the same vehicles and component

- [2021343](/recalls/tc/2021343.md), 2021-06-02: Wheels
- [21V416000](/recalls/nhtsa/21V416000.md), 2021-06-02: WHEELS; WHEELS:HUB

## Other bulletins for the same vehicles and component

- [CBR 2595 072026](/bulletins/11035505.md), 2026-08-03, Service bulletin: WHEELS; SEATS. CBR \- The purpose of this CBR is to provide information on 2010 and newer Mack Granite chassis experiencing a low frequency vibration.
- [M\-773\-005a](/bulletins/10235493.md), 2023-05-03, Service bulletin: WHEELS. TSB: Hub Cap, Leaking
- [M\-773\-005](/bulletins/10233522.md), 2023-04-04, Service bulletin: WHEELS. New TSB\- Hub cap leaking
- [KC\-633](/bulletins/10213628.md), 2022-06-07, Service bulletin: WHEELS. Mack Chassis \- Front Hub With Unit\-Bearings \( Unitized Wheel Bearings \), Inspection Information And Guidelines \- Commonly Model Year 2008 And Newer
- [S7630](/bulletins/10211022.md), 2022-05-05, Service bulletin: WHEELS; POWER TRAIN:AXLE HUBS. Proprietary Steerable Axle Hubcap Replacement

JSON: [/v1/bulletins/10180411](/v1/bulletins/10180411)

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