Cummins Fuel System, Diesel: Hoses, Lines/Piping, and Fittings

Cummins is recalling about 39,052 vehicles over a problem with the fuel system, diesel. A fuel leak in the presence of an ignition source increases the risk of a fire.

Campaign
26E066000
Manufacturer
Cummins, Inc.
Reported
28 September 2026
Vehicles
39,052
Built between
Dec 2020 – Apr 2026
Models
1
Recall type
Equipment
Initiated by
Manufacturer
Owners notified
Not yet
Repaired
Not reported
Unrepaired
Not reported

Does this affect my vehicle?

This recall covers vehicles built between December 2020 and April 2026. If yours was built outside that window, it is not part of this recall.

  • Cummins L9Built December 2020 to April 2026

What the defect is

Cummins, Inc. (Cummins) is recalling certain L9 diesel engines, part number D563027BX03. The remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall.

What could happen

A fuel leak in the presence of an ignition source increases the risk of a fire. An engine stall increases the risk of a crash.

What gets fixed

Dealers will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed November 20, 2026.

Parts involved

  • Hose, Fuel6316754, 6316757, 6316899Fuel carrying hose with quick connect fittings

Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.

Timeline

  1. Vehicles builtDecember 2020 to April 2026
  2. Recall reported to NHTSA28 September 2026

No owner-notification date has been published yet. Manufacturers normally write to registered owners within 60 days of reporting a recall.

Your rights

A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.

That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 28 September 2026.

To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.

Manufacturer contact

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.

Official source

Manufacturer's recall number
C7311
Recalling manufacturer
Cummins, Inc.
Recall initiated by
MFR

Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.

Check your own vehicle

This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.

A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.

Same component

Same brand