High pressure fuel rail assembly may leak fuel
Defect Summary
Cummins, inc. (cummins) is recalling certain l9 part number d0k3003bx03 and isx12 part number d563025bx03 diesel engines. the sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Safety Consequence
A fuel leak in the presence of an ignition source increases the risk of a fire.
Corrective Action
Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. owner letters were mailed july 30, 2021. Owners may contact cummins customer service at 1-800-286-6467.
Similar Recalls
Other recalls from Cummins, Inc. or involving Fuel System, Diesel.
FAQ: Recall 21E032000
Your rights, the repair process, and what each field on this page means.
What is recall 21E032000?
NHTSA recall 21E032000 was issued by Cummins, Inc. on April 20, 2021. It addresses: High pressure fuel rail assembly may leak fuel. The recall affects approximately 45,334 vehicles, with the defect involving the Fuel System, Diesel component.
How do I get this recall repaired?
Contact any authorized Cummins, Inc. dealer and reference NHTSA recall ID 21E032000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.