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PACCAR Incorporated — recall

Automotive · United States · 2026-07-08

PACCAR Incorporated Peterbilt 579 and Kenworth T680 tractors, trailer air QR valve improperly installed

Country	United States
Category	Automotive
Published	2026-07-08
Manufacturer	PACCAR Incorporated
Units affected	8
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." / 后果: An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.
Component	SERVICE BRAKES, AIR
Recall type	Vehicle
Remedy	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 number	26V442000
Official notice	View source ↗

What this means for sellers

Likely platform / channel actions	OEMs/dealers will run the remedy (repair, replace or refund); component suppliers in the chain may face traceback.
Self-check for comparable products	Check your comparable products' design, materials and QC records against the defect described here.
Rules & standards likely involved	FMVSS (NHTSA) · Full guide →

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