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NHTSA Campaign 21E060000

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

Issued by Cummins, Inc. · Reported Jun 29, 2021 · 494 vehicles affected

What's 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.

Consequence

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

Remedy

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 affected by this recall

Make Model Year Units
CUMMINS L9 494

Source: NHTSA Campaign 21E060000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.