Peterbilt, Kenworth recall 26V442000 - Quick Release Valve

NHTSA · July 8, 2026

• NHTSA recall campaign 26V442000 (Peterbilt, Kenworth), reported July 8, 2026.
• Potentially affected vehicles: 8.
• Component: Quick Release Valve.
• Details as of October 24, 2026; the linked official notice is authoritative for lot codes, VINs, and remedies.

Agency

NHTSA

Posted

July 8, 2026

Recalling firm

PACCAR Incorporated

Source ID

26V442000

NHTSA campaign →

How this recall compares

• NHTSA's recalls file lists 190 recall campaigns from PACCAR Incorporated since 2010, 6 of them reported in 2026 so far.
• At 8 vehicles, it is larger than 6% of the 738 NHTSA campaigns from 2026 so far with a count of potentially affected vehicles.

Defect

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."

Consequence

An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.

Corrective action

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.

Affected vehicles

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