NHTSA campaign 26V442000 · Manufacturer campaign 26PACC
Kenworth and Peterbilt Recall 26V-442: Incorrectly Installed Quick Release Valve/FMVSS 121
NHTSA recall 26V442000 (Manufacturer campaign 26PACC) was reported by PACCAR Incorporated on July 8, 2026, with 8 vehicles potentially affected (per NHTSA). NHTSA's record lists the Peterbilt 579 and Kenworth T680 for model years 2026–2027.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 26V442000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 26V442000 (also written 26V-442 or 26V442)
- Filed by
- PACCAR Incorporated
- Manufacturer campaign number
- 26PACC
- Report received
- Potentially affected
- 8 vehicles (per NHTSA)
- Component
- Service Brakes, Air — Supply — Quick Release Valve
- Safety standard
- FMVSS 121
Completion not yet reported (dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 26V442000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Kenworth
Kenworth T680
- 2027 · Vehicles built February 4, 2026 – February 10, 2026 (per NHTSA)
Peterbilt
Peterbilt 579
NHTSA's recall notice
As NHTSA's recall record states it for campaign 26V442000.
Defect 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."
Safety consequence
An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.
Manufacturer 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.
Sources
Official NHTSA notice for recall 26V442000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.