Peterbilt 548 recall 26V567000 - Proportioning Relay Valve
NHTSA · September 1, 2026
- NHTSA recall campaign 26V567000 (Peterbilt), reported .
- Potentially affected vehicles: 58.
- Component: Proportioning Relay Valve.
- Details as of ; the linked official notice is authoritative for lot codes, VINs, and remedies.
- Agency
- NHTSA
- Posted
- Recalling firm
- PACCAR Incorporated
- Source ID
- 26V567000
How this recall compares
- NHTSA's recalls file lists 189 recall campaigns from PACCAR Incorporated since 2010, 5 of them reported in 2026 so far.
- At 58 vehicles, it is larger than 23% of the 718 NHTSA campaigns from 2026 so far with a count of potentially affected vehicles.
Defect
PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt 548 trucks. The front brake valve and hoses may be the incorrect size, which can delay the rear service brake application and release, as well as the trailer gladhand application times. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Consequence
Delayed brake response time can increase the risk of a crash.
Corrective action
Dealers will replace the front brake valves and hoses, free of charge. Owner notification letters are expected to be mailed October 31, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 26PACF.
Affected vehicles
| Make | Model | Year |
|---|---|---|
| Peterbilt | 548 | 2027 |
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