PACCAR Kenworth T440 (2021) Fuel Leak Fire Risk Recall
PACCAR recalls 2021 Kenworth T440 trucks with Cummins L9 diesel engines due to potential fuel leaks near ignition sources that could cause fire. Owners must contact PACCAR for free fuel hose replacement.
Use caution until it’s fixed
A fuel leak in the presence of an ignition source increases the risk of a fire.
Contact the company
What happened, in plain English
PACCAR is recalling 2021 Kenworth T440 trucks with Cummins L9 diesel engines because a fuel leak could cause fire if near an ignition source. This affects owners who need to get free fuel hose replacements before the next mail delivery. Read more at govinfonow.com/recall/80531-paccar-kenworth-t440-2021-fuel-leak-fire-risk-recall.
Source Summary by GovInfoNow · govinfonow.com/recall/80531-paccar-kenworth-t440-2021-fuel-leak-fire-risk-recall · Updated October 4, 2026 · Official notice: NHTSA #21V601000
Cite this page
“PACCAR Kenworth T440 (2021) Fuel Leak Fire Risk Recall.” GovInfoNow, updated October 4, 2026. https://govinfonow.com/recall/80531-paccar-kenworth-t440-2021-fuel-leak-fire-risk-recall. Based on NHTSA recall #21V601000 (https://www.nhtsa.gov/recalls?nhtsaId=21V601000).
Why it’s dangerous
A fuel leak can occur from the fuel hose between the fuel pump and remote fuel filter head. If this leak is near an ignition source like a spark or hot engine part, it could ignite and cause a fire.
Who’s affected
Owners of 2021 Kenworth T440 trucks with Cummins L9 diesel engines are affected. Drivers using these trucks without the fix may face fire risk if fuel leaks near ignition sources.
How to tell if you have this one
Check if your 2021 Kenworth T440 has a Cummins L9 diesel engine. The recall covers vehicles sold between 2021 and 2022 with specific model numbers.
- Brand
PACCAR- Category
Vehicle
What to do — step by step
Stop Using Until Fixed
Do not drive the vehicle until the fuel hose replacement is completed to prevent fire risk.
Contact PACCAR
Call PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt) to schedule the free fuel hose replacement.
October 2021
What NHTSA says to do
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.
How this recall unfolded
Recall timeline
- NHTSA received the defect report
- Owner letters expected (expected, per the notice)
Dates from the agency record only; steps without a date are left out.
Contact PACCAR
We’ve drafted a message you can send PACCAR to request your refund or repair — edit it as you like.
Subject: Recall 21V601000 — PACCAR Kenworth T440 (2021) Fuel Leak Fire Risk Recall Hello, I own a PACCAR Kenworth T440 (2021) Fuel Leak Fire Risk Recall that is covered by recall 21V601000 from PACCAR. The official recall notice states: 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. I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this? Thank you.
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Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: NHTSA Recall #21V601000 (March 8, 2021)
- Plain-language summary written by qwen3:4b on October 4, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.