Kenworth T270, Kenworth T280, Kenworth T370, Kenworth T380, Kenworth T440, Kenworth T470, model years 2021 to 2022. Filed by PACCAR Incorporated and reported to NHTSA on 3 August 2021. 688 vehicles potentially affected.
What the notice says PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Peterbilt 536, 537, 548 and Kenworth T270, T280, T370, T380, T440, T470, and T480 vehicles equipped with Cummins L9 diesel engines. A fuel leak may occur from the fuel hose between the fuel pump and the remote fuel filter head.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Paccar's own number for this recall: 21PBG AND 21KWF. That is the number on the owner letter and on the dealer paperwork. 21V601 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 21V601 cover?
- Kenworth T270, Kenworth T280, Kenworth T370, Kenworth T380, Kenworth T440, Kenworth T470, Kenworth T480, Peterbilt 536, model years 2021-2022.
- What is wrong with them?
- PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Peterbilt 536, 537, 548 and Kenworth T270, T280, T370, T380, T440, T470, and T480 vehicles equipped with Cummins L9 diesel engines. A fuel leak may occur from the fuel hose between the fuel pump and the remote fuel filter head.
- What can happen if it is not put right?
- A fuel leak in the presence of an ignition source increases the risk of a fire.
- Is there a fix yet?
- Yes, and it is free. Cummins will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed in October 2021. Owners may contact PACCAR's customer service at 1-425-828-5888 (Kenworth) and 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21PBG and 21KWF.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Paccar calls this recall 21PBG AND 21KWF, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “A fuel leak in the presence of an ignition source increases the risk of a fire.”
affected
in the notice
caught
| Campaign | 21V601 |
|---|---|
| Filed by | PACCAR Incorporated |
| System at fault | Fuel System, Diesel:Delivery:Hoses, Lines/Piping, And Fittings |
| Reported to NHTSA | 3 August 2021 |
| Model years | 2021-2022 |
| Vehicles named | KENWORTH T270, KENWORTH T280, KENWORTH T370, KENWORTH T380, KENWORTH T440, KENWORTH T470, KENWORTH T480, PETERBILT 536, PETERBILT 537, PETERBILT 548 |
What the notice says today
The consequence
A fuel leak in the presence of an ignition source increases the risk of a fire.
The remedy
Cummins will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed in October 2021. Owners may contact PACCAR's customer service at 1-425-828-5888 (Kenworth) and 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21PBG and 21KWF.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 197 notices in the record whose component field names fuel system, diesel. Across that group the median wait before owners were written to was 43 days.
The models named here, across their whole recall history
- Kenworth T270 recalls: 24 US campaigns
- Kenworth T280 recalls: 19 US campaigns
- Kenworth T370 recalls: 31 US campaigns
- Kenworth T380 recalls: 19 US campaigns
- Kenworth T440 recalls: 27 US campaigns
- Kenworth T470 recalls: 19 US campaigns
- Kenworth T480 recalls: 21 US campaigns
- Peterbilt 536 recalls: 21 US campaigns
- Peterbilt 537 recalls: 19 US campaigns
- Peterbilt 548 recalls: 22 US campaigns
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Paccar notices we hold
- 26V544: 2027 Peterbilt 567, 579, 589 and 2027 Kenworth T680, T880, and W990
- 26V485: 2027 Peterbilt and Kenworth
- 26V442: 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors
- 26V022: 2026 Kenworth L770 and 2024-2026 Peterbilt 520
- 25V795: 2026 Peterbilt 567 and 589 trucks
- 25V569: 2024-2026 Kenworth T680, T880, and W990 trucks
- 25V353: 2024 Peterbilt 367, 2026 Peterbilt 548, 589, and 2024-2026 Peterbilt 567 trucks
- 25V182: 2021-2026 Peterbilt 220, 2022-2026 Kenworth K370, and 2020-2026 K270 Medium-Duty Battery Electric
All 138 Paccar campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 21V601 on 23 August 2026, they were:
- Defect summary
159e3939 - Consequence
2c1e78b5 - Remedy
42558cfa
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 21V601 · how the whole register is watched
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