2020 Peterbilt 520 Recall: Incorrect bolts may have been used to secure the steering assist cylinder…
NHTSA campaign 20V429000 · Steering · filed Jul 24, 2020 · verified Jul 30, 2026
The defect
PACCAR Incorporated (PACCAR) is recalling certain 2020 Peterbilt 520 vehicles. Incorrect bolts may have been used to secure the steering assist cylinder bracket, possibly allowing the bolts to loosen.
The risk
Loose bolts may cause the bracket to flex or break, potentially damaging adjacent components or locking up the steering, increasing the risk of crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
PACCAR will notify owners, and dealers will install hardware with thread adhesive and replace any components damaged by the improperly secured steer assist bracket, free of charge. The recall began August 17, 2020. Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR's number for this recall is 20PBD.
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.safercar.gov.
Affected vehicles
Related recalls
More Peterbilt 520 recalls
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- 2024–2025 Kenworth C500B and 22 other models — Please see the recall report for a complete list of models
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Other campaigns involving Peterbilt vehicles
Source: NHTSA recall database, campaign 20V429000 (manufacturer number 20PBD). Data last verified Jul 30, 2026.