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This is a historical safety record. The campaign may no longer be active.

NHTSA : 21E060000

Campaign Details

Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

Defect Description

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.

Consequence / Hazard

Exposure to high levels of ammonia can increase the risk of injury.

Proposed Solution

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.

🚗 Affected Vehicles1

All the models below were recalled for this exact same problem.