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NHTSA recall · Reported May 26, 2021

KENWORTH,PETERBILT 2018-2021: FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL

PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer ma…

Recall #
21V391000
Compiled from official public sources by the editorial team.
Verify with NHTSA →
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Kenworth,Peterbilt recalled PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367,… - a critical-severity action.

KENWORTH,PETERBILT 2018-2021: FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL was recalled by Kenworth,Peterbilt in May 26, 2021. Reason: PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth …. Remedy: Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, …. Verify recall #21V391000 with the NHTSA before acting.

The recall

Kenworth,Peterbilt issued this critical-severity NHTSA recall-PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth ….

Critical
severity level
May 26, 2021
reported

Sourced from official NHTSA enforcement records. Verify recall #21V391000 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.

Recall Insight

This NHTSA action (record #21V391000) was formally reported on May 26, 2021. It is classified under Critical severity, with a current status of Active. Kenworth,Peterbilt is listed as the recalling firm. The number of affected units is not disclosed in the agency filing, which is common for drug and food recalls where lot-level tracking supersedes unit counts.

The documented reason for this recall is: PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer may not seat correctly in the pilot bore h… The specific hazard cited in the filing is: A fuel leak in the presence of an ignition source increases the risk of a fire.. Distribution data in the federal record shows the product reached: United States. Distribution scope directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory. The remedy documented by the agency is: Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Pe… - consumers holding this product should act on that instruction rather than relying on general guidance.

Within the same product category the archive holds 6 closely related recalls - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.

Vehicles recalls over time

Where this recall sits in its category - 7,642 vehicles recalls on record

0200400600 20052008201120142017202020232026 82
Severity2487872426High severity (most serious)Moderate severityLow severity
Where this recall sits in the database

Of 101,704 recalls in the database, 24,878 are high severity, 72,426 moderate, and 4,400 low. This recall is classified high severity.

Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.

Severity

Critical

Affected scope

Unknown

Related Recalls

6

0 from same agency

Product description

PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.

Reason for recall

PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.

Hazard

A fuel leak in the presence of an ignition source increases the risk of a fire.

Remedy, what to do

Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWC and 21PBD.

Recall Profile

Structured summary of the NHTSA recall record
Attribute Value
Agency National Highway Traffic Safety Administration
Severity class Critical
Status Active
Recall number 21V391000
Date reported May 26, 2021
Date initiated May 26, 2021
Recalling firm Kenworth,Peterbilt
Affected scope Not disclosed
Distribution United States
Official source NHTSA notice →

Profile values are sourced directly from the official NHTSA enforcement record. Source: National Highway Traffic Safety Administration.

What to do with this recall

Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owners may contact PACC…

  • Check the recall number (21V391000) and product description against the item you own. Search the archive
  • Confirm the current status and remedy on the official NHTSA notice before acting. NHTSA notice
  • This is a Class I (high-risk) recall, stop using the product immediately and follow the disposal or return instructions. What to do next

This page summarizes the official NHTSA record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.

Frequently Asked Questions

What product was recalled?
PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.. Recalled by Kenworth,Peterbilt.
Why was this product recalled?
PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
What should consumers do?
Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWC and 21PBD.
Which agency issued this recall?
This recall was issued by the NHTSA on May 26, 2021. Severity: Critical. Recall number: 21V391000.
Where was the recalled product distributed?
Distribution: United States.
How do I check if my product is affected by a recall?
Check the product description and recall number (21V391000) against your product. Visit the official NHTSA website for the most current information. You can also use our Recall Checker tool to search by product name or brand.
How do I report an injury from a recalled product?
Report injuries to the issuing agency: CPSC at SaferProducts.gov, NHTSA at nhtsa.gov/report-a-safety-problem, or FDA via MedWatch. Document the product (photos, model/serial numbers, purchase receipts) and seek medical attention. Injury reports help agencies track hazard patterns and may strengthen enforcement actions.

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Every figure on PlainRecalls is rendered directly from official FDA, CPSC and NHTSA recall records, no number is typed in by an editor. This recall: NHTSA, reported May 26, 2021. Severity classes follow each agency's own taxonomy (FDA Class I/II/III; CPSC and NHTSA by hazard type), and related-recall context is computed across the full archive. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.