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Peterbilt 520 Recall 22V939: Suspension Bracket Can Detach, Risking Loss of Control

NHTSA campaign 22V939, reported December 16, 2022, 15,658 vehicles potentially affected.

What this recall means for you

Certain refuse trucks with Haulmaax/EX suspensions have suspension tracking rod brackets that may fail and detach from the forward drive axle. When this happens, the axle can become unstable, which reduces the driver's ability to control the vehicle and increases the risk of a crash.

If you own or operate an affected truck, have it inspected by an authorized Peterbilt dealer. The dealer will check the welds and, where needed, add an additional bracket between the tracking rod bracket and the axle housing. This repair is free of charge. Owner notification letters were expected to be mailed February 14, 2023. You can also contact Peterbilt customer service at 1-940-591-4220 and check your vehicle identification number (VIN) for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 22V939PACCAR Incorporated
Component
SUSPENSION:MULTIPLE AXLE
Problem
PACCAR Incorporated (PACCAR) is recalling certain 2015-2023 Peterbilt 320 and 520 refuse trucks equipped with Haulmaax/EX suspensions. The suspension tracking rod brackets may fail and detach from the forward drive axle, causing the axle to become unstable.
Risk
An unstable axle can decrease vehicle stability and control, increasing the risk of a crash.
Remedy
Dealers will inspect the welds and add an additional bracket between the tracking rod bracket and axle housing, as necessary, free of charge. Owner notification letters are expected to be mailed February 14, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 22PBL.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Affected vehicles

Peterbilt 320201520162017201820192020202120222023
Peterbilt 520201520162017201820192020202120222023