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Manufacturer recall number

Peterbilt recall 26PACC

Peterbilt calls it 26PACC. NHTSA filed it as campaign 26V442000 on Jul 8, 2026: service brakes, air on the 2026–2027 Kenworth and Peterbilt, 8 vehicles potentially affected. One recall, two numbers — the dealer quotes the manufacturer’s, the federal record carries NHTSA’s.

What NHTSA has under this number

Source: 49 CFR Part 573 filings
NHTSA campaignVehiclesComponentFiledAffectedSeverity
26V4420002026–2027 Kenworth and PeterbiltService Brakes, AirJul 8, 20268high
Problem 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." Risk An incorrectly installed quick release valve that does not function properly can increase the risk of a crash. Fix 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.

The manufacturer’s own words as filed for 26V442000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. 26PACC is the number Peterbilt assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 26V442000 is the number NHTSA filed the same recall under when the manufacturer reported it, and it is the one every federal record, this site included, is keyed on.

The repair is free by federal law for vehicles up to fifteen years old. Whether one particular vehicle is included is settled by its VIN against the manufacturer’s build list, not by its model year.

Check one specific vehicle

Both lookups check a VIN against the manufacturer’s own list and say whether the repair is still outstanding on that vehicle.

Common questions

Source: NHTSA, 49 CFR Part 573

Is 26PACC the same recall as 26V442000?

Yes. 26PACC is Peterbilt’s own number for it; 26V442000 is NHTSA’s. One recall, two references.

Which vehicles does 26PACC cover?

2026–2027 Kenworth and Peterbilt, 8 vehicles by the manufacturer’s count. A recall covers a build range, so the VIN decides whether one particular vehicle is in it.

Does the 26PACC repair cost anything?

No. The manufacturer must remedy a safety defect at no charge for vehicles up to 15 years old from first sale.