Cummins recall: Engine and engine cooling
What is wrong
Cummins, Inc. (Cummins) is recalling certain L9 Diesel Engines, with part number D563027BX03. The engine calibration software's management of the injection of Diesel Exhaust Fluid can allow excessive ammonia into the tailpipe exhaust.
What could happen
Exposure to high levels of ammonia can increase the risk of injury.
The fix
Dealers will recalibrate the engine, free of charge. Owner notification letters were mailed August 20, 2021. Owners may contact Cummins customer service at 1-800-286-6467.
Vehicles covered
- Cummins L9
Facts
- NHTSA recall number
- 21E060000
- Type
- Equipment
- Filed by
- Cummins, Inc.
- Reported to NHTSA
- Jun 29, 2021
- Owners notified
- Aug 20, 2021
- Vehicles or items affected
- 494
- Started by
- The manufacturer
- Built
- –
- Part
- Engine and engine cooling › Exhaust system › Manifold/header/muffler/tail pipe
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.
Other recalls for the same vehicles
- Cummins recall: Fuel system, diesel Sep 28, 2026
- Cummins recall: Fuel system, diesel Jan 17, 2025
- Cummins recall: Fuel system, diesel May 21, 2024
- Cummins recall: Fuel system, diesel Jul 18, 2023
- Cummins recall: Engine and engine cooling Jul 28, 2022
- Cummins recall: Fuel system, diesel Jul 13, 2021
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.