Safety Recall NHTSA · 21V720000 Reported September 16, 2021

Quick release valve missing/fmvss 121

Q: What is recall 21V720000?

NHTSA recall 21V720000 was issued by Paccar Incorporated on September 16, 2021. It addresses: Quick release valve missing/fmvss 121. The recall affects approximately 15 vehicles , with the defect involving the N/A component.

Q: Is my vehicle included in this recall?

The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls . NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.

Q: How long do I have to get a recall repair done?

There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.

Paccar Incorporated · N/A · 15 vehicles potentially affected

NHTSA ID

21V720000

Manufacturer Campaign

21PBK

Manufacturer

Paccar Incorporated

Component

N/A

Vehicles Affected

Recall Type

Vehicle

Report Received

September 16, 2021

Completion Rate

80.00

Defect Summary

Paccar incorporated (paccar) is recalling certain 2020-2021 peterbilt 520 vehicles. the quick release valve on the rear brake signal hose may be missing. as such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard number 121, "air brake systems."

Safety Consequence

A missing quick release valve cannot ensure correct rear brake release timing, increasing the risk of a crash or injury.

Corrective Action

Dealers will inspect the vehicles for a missing quick release valve, and install one if necessary, free of charge. owner notification letters were mailed on october 7, 2021. owners may contact paccar's customer service at 1-940-591-4220 (peterbilt). paccar's number for this recall is 21pbk.

What you should do

Look up your VIN at nhtsa.gov/recalls to confirm this recall applies to your vehicle.
Contact an authorized Paccar Incorporated dealer and reference recall ID 21V720000 or campaign 21PBK.
Schedule the free repair. By federal law, the manufacturer must remedy the defect at no cost.

View Official NHTSA Notice →

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FAQ: Recall 21V720000

Your rights, the repair process, and what each field on this page means.

What is recall 21V720000?

NHTSA recall 21V720000 was issued by Paccar Incorporated on September 16, 2021. It addresses: Quick release valve missing/fmvss 121. The recall affects approximately 15 vehicles, with the defect involving the N/A component.

How do I get this recall repaired?

Contact any authorized Paccar Incorporated dealer and reference NHTSA recall ID 21V720000 or the manufacturer campaign number 21PBK. Under federal law, the repair is completely free regardless of vehicle age or owner history.

Is my vehicle included in this recall?

The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.

How long do I have to get a recall repair done?

There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.

Where does the data on this page come from?

All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.