# Service campaign SC S4920 202604

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 campaign
- NHTSA id: 11032096
- Published by NHTSA: 2026\-05\-05
- Manufacturer's number: SC S4920 202604
- Manufacturer's date: 2026\-04\-02
- NHTSA component: SUSPENSION

## NHTSA's summary

SC \- Trunion Nut Pinch Bolt.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032096-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11032096-9999.pdf)

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

## Components

Suspension

## Vehicles listed

- 2024 to 2026 MACK LR
- 2024 to 2026 MACK TERRAPRO \(TE\)

## Other bulletins for the same vehicles and component

- [CBR\-2016 202412](/bulletins/11012156.md), 2025-01-02, Service bulletin: SUSPENSION. Frame lean can be caused by several seemingly isolated possibilities. The two most common are suspension and frame assembly issues.
- [S3857 202402](/bulletins/10251335.md), 2024-03-06, Service bulletin: STEERING; SUSPENSION. Service Campaign \- MMD Suspension Bracket Torque.
- [CBR\-2014 202402](/bulletins/10251328.md), 2024-03-05, Service bulletin: SUSPENSION. CBR \- Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust \- Chassis Built 2016w01 And Newer.
- [CBR\-2016 202401](/bulletins/10249551.md), 2024-02-02, Service bulletin: STRUCTURE; SUSPENSION. CBR: Frame Or Cab Lean
- [KC\-2292](/bulletins/10238830.md), 2023-07-06, Service bulletin: SUSPENSION. Vehicles Equipped With Chalmers Suspension \- Frame Bracket Hardware Loose or Interfering
- [KC\-2273\-Rev6](/bulletins/10237336.md), 2023-06-05, Service bulletin: WHEELS; SUSPENSION; POWER TRAIN. CBR: Pre\-Delivery Inspection \(PDI\) Torque Values. This is to help with the torque specs needed to complete a Pre\- Delivery Inspection \(PDI\).

JSON: [/v1/bulletins/11032096](/v1/bulletins/11032096)

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