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NHTSA recall,

Cummins L9 Diesel Engines

Cummins L9 diesel engines can leak fuel and stall, increasing fire and crash risks.

Summary by Recall Canary from the NHTSA notice

What happened

Cummins, Inc. is recalling certain L9 diesel engines because the remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall. A fuel leak in the presence of an ignition source increases the risk of a fire, and an engine stall increases the risk of a crash. The recall affects 39,052 engines nationwide.

The recall was reported to NHTSA on September 28, 2026. Dealers will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed on November 20, 2026. Engines remedied under Recalls 23E055, 24E038, or 25E004 will need to have the new redesigned parts installed.

More fuel system defect recalls

What to do

If yours is included:

  1. Dealers will replace the fuel hoses, free of charge.
  2. Owner notification letters are expected to be mailed November 20, 2026. You may contact Cummins customer service at 1-800-286-6467. Cummins number for this recall is C7311. Engines remedied under Recalls 23E055, 24E038, or 25E004 will need to have the new redesigned parts installed.
  3. Watch your mail. Owner notification letters are expected to be mailed November 20, 2026.

What you get Free repair

Full text from NHTSA

Dealers will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed November 20, 2026. Owners may contact Cummins customer service at 1-800-286-6467. Cummins number for this recall is C7311. Engines remedied under Recalls 23E055, 24E038, or 25E004 will need to have the new redesigned parts installed.

Is yours affected?

Check yours against the codes the NHTSA notice names below.

  1. Cummins L9, Fuel System, Diesel

From the NHTSA notice

Cummins, Inc. (Cummins) is recalling certain L9 diesel engines, part number D563027BX03.

Recall details

Reported to NHTSA
Sold in
Nationwide
Manufacturer
Cummins, Inc.
Component
Fuel system defect
Campaign
26E066000
Units affected
39,052
Repair cost
Free of charge
Owner letters expected
Manufacturer phone
1-800-286-6467

All recalls from Cummins, Inc.

Timeline

  1. Reported to NHTSA

  2. Listed on Recall Canary

  3. Summary updated

Other fuel system defect recalls

See all: Other fuel system defect recalls

Summary by Recall Canary, written with AI · summary updated Oct 3, 2026 · primary source: U.S. National Highway Traffic Safety Administration (opens in a new tab)