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Service bulletin 24PBK

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11012374
Published by NHTSA2025-01-07
Manufacturer's number24PBK
Manufacturer's date2024-12-13
Campaign id or software version24PBK
NHTSA componentSTEERING

NHTSA's summary

Interim Safety Recall Specific 2024 Peterbilt model 367, 389, 548, and 2024-2025 Peterbilt 520 and 567 chassis equipped with a PACCAR 20k Steer Axle have been identified as having steer arm and/or tie rod arm fasteners that may be improperly torqued and can be at risk of failing. If both fasteners in either steering arm or tie rod arm fail, there may be a loss of steering control, which could increase the risk of a crash. At this time, parts are not available to complete the necessary repairs. This bulletin will be updated when parts become available.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Steering

Vehicles listed
PETERBILT 3672024
PETERBILT 3892024
PETERBILT 5202025
PETERBILT 5482024
PETERBILT 5672025

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20260142026-01-19. Steering
26V0220002026-01-19. STEERING
20247322024-12-03. Steering
24V9080002024-12-03. STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM; STEERING:LINKAGES:TIE ROD ASSEMBLY
20243352024-06-12. Steering
24V4330002024-06-12. STEERING:LINKAGES:TIE ROD ASSEMBLY; STEERING:LINKAGES:DRAG:LINK:CONNECTION
20241972024-03-27. Steering
24V2330002024-03-27. STEERING:GEAR BOX:SHAFT SECTOR
20240362024-01-25. Steering
24V0440002024-01-25. STEERING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
24KWC/24PBC2026-08-20. Service bulletin. Updated Sheppard Steering Gear Classification Tool link in Inspection Procedure
26PACA2026-06-03. Service bulletin. Updated cross shaft and bearing installation steps have been added to the repair procedures.
46-0282026-06-03. Service campaign. Certain Peterbilt Model 520 BEV chassis with an Accelera Power Control and Accessory System (PCAS) were manufactured without a check valve in the power steering system.
24KWF/PBF2026-04-07. Service bulletin. Sheppard Recall Update March 2026 - The Parts section has been updated with revised steps for opening a TCS365 Order Support – Order Inquiry case.
15-0342026-03-05. Service campaign. Battery Electric Vehicle (BEV) de-energizing and re-energizing procedures have been added to the bulletin for Peterbilt Model 520 BEV.
15-0342026-01-06. Service bulletin. Certain Kenworth L770 and Peterbilt Model 520 chassis may encounter a slight increase in effort in the right-hand steering shaft when turning the wheel.
24PBK2025-02-05. Service bulletin. Safety Recall Specific 2024 Peterbilt Model 367, 389, 548, and 2024-2025 520 and 567 chassis equipped with a PACCAR 20k Steer Axle have been identified as having steering arm and/or tie rod arm fasteners that may be improperly torqued and can be at risk of failing. If both fasteners in either steering arm or tie rod arm fail, there may be a loss of steering control, which could increase the risk of a crash. Affected chassis will have all steering arm and tie rod arm bolts removed, replaced with new bolts, and torqued properly.
24PBJ2025-01-07. Service bulletin. INTERIM Safety Recall Certain Meritor 10-16K and 18-23K Front Steer Drive Axles may have insuffi cient wheel bearing grease. Insuffi cientlubricati on in the wheel bearing may cause the wheel hub to overheat and become damaged, which may increasethe risk of fi re. The driver may hear noise, excessive steering play, and/or smoke from front wheel. INTERIM Safety Recall start date: 12/12/2024
24KWGD/24PBGD2024-09-10. Service bulletin. This bulletin contains secondary inspection procedures and part replacement procedures for tie-rods identified as SUSPECT under 24PBGB ONLY. Certain chassis that have completed 24PBGB inspection with “GOOD” results but have not filed warranty claims to close out the campaign in SIR will need to file a claim and close out 24PBGD. Secondary inspection and replacement procedures are now available through this bulletin for parts found to be SUSPECT in the 24PBGB Safety Recall. Customers will be advised NOT TO DRIVE TRUCKS until this remedy is completed.
24PBGD2024-08-03. Service bulletin. This bulletin contains secondary inspection procedures and part replacement procedures for tie-rods identified as SUSPECT under 24PBGB ONLY. Certain chassis that have completed 24PBGB inspection with “GOOD” results but have not filed warranty claims to close out the campaign in SIR will need to file a claim and close out 24PBGD. Secondary inspection and replacement procedures are now available through this bulletin for parts found to be SUSPECT in the 24PBGB Safety Recall. Customers will be advised NOT TO DRIVE TRUCKS until this remedy is completed.