NHTSA recall · Reported July 8, 2026
PETERBILT 2026: SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. The trailer air connection quick release (QR) valve in the air brake sys…
Peterbilt recalled PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenwor….
PETERBILT 2026: SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE was recalled by Peterbilt in July 8, 2026. Reason: PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. Th…. Remedy: Paccar inspected and reinstalled the valves, as necessary, free of charge. All affected t…. Verify recall #26V442000 with the NHTSA before acting.
The recall
Peterbilt issued this NHTSA recall-PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. Th….
- None
- agency class
- July 8, 2026
- reported
Sourced from official NHTSA enforcement records. Verify recall #26V442000 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.
Recall Insight
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. Distribution scope (see Distribution below) directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory. Consumers holding this product should act on the agency's documented remedy above rather than relying on general guidance.
Within the same product category the archive holds 6 closely related recalls, 3 from NHTSA - 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 - 7,783 vehicles recalls on record
Product description
PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. The trailer air connection quick release (QR) valve in the air brake system may have been incorrectly installed, which can cause the trailer to become unstable after the driver applies the brakes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Reason for recall
PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. The trailer air connection quick release (QR) valve in the air brake system may have been incorrectly installed, which can cause the trailer to become unstable after the driver applies the brakes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Hazard
An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.
Remedy, what to do
Paccar inspected and reinstalled the valves, as necessary, free of charge. All affected tractors have been repaired and therefore no owner notification letters are necessary. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACC.
Recall Profile
| Attribute | Value |
|---|---|
| Agency | National Highway Traffic Safety Administration |
| Severity class | Not classified by agency |
| Status | Active |
| Recall number | 26V442000 |
| Date reported | July 8, 2026 |
| Date initiated | July 8, 2026 |
| Recalling firm | 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
Paccar inspected and reinstalled the valves, as necessary, free of charge. All affected tractors have been repaired and therefore…
- Check the recall number (26V442000) 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
- Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. 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.
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Nationwide recalls with similar severity or category timing
Vehicle and equipment notices outside this manufacturer and filing state, matched by archive severity grade and report timing.
Similar severity · nearest report date
Same archive severity grade, closest by report date among other firms and states.
Similar Vehicles · nearest report date
Same product category, closest by report date among other firms and states (deduped against the severity set).
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Methodology · Corrections · Archive as of August 2026