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

Cummins is recalling about 230 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
24E038000
Manufacturer
Cummins, Inc.
Reported
21 May 2024
Vehicles
230
Built between
Not published
Models
1
Recall type
Equipment
Initiated by
Manufacturer
Owners notified
8 July 2024
Repaired
62%
Unrepaired
74

Does this affect my vehicle?

The manufacturer did not publish a build-date range for this recall, so the model and year list below is the only way to tell whether your vehicle is covered.

  • Cummins L9

Repair progress

74 of 230 vehicles in this recall had still not been repaired as of Q2 2026.

62% repaired — 143 of 230 reported

Owners not reachable
13

Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.

What the defect is

Cummins, Inc. (Cummins) is recalling certain Cummins L9 diesel engines with part number D563027BX03. The remote fuel filter hoses may become separated from the fitting, which can result in a fuel leak and a lack of fuel supply to the engine.

What could happen

A fuel leak in the presence of an ignition source increases the risk of a fire. Additionally, a lack of fuel can cause an engine stall, increasing the risk of a crash.

What gets fixed

Dealers will replace the fuel filter hoses, free of charge. Owner notification letters were mailed in July 8, 2024.

Parts involved

  • Hose, Fuel6316757 and 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. Recall reported to NHTSA21 May 2024
  2. Owners notified8 July 2024
  3. Latest repair reportQ2 2026 — 62% repaired

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 21 May 2024.

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 C7032.

Official source

Manufacturer's recall number
C7032
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.

Additional notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

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