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Service bulletin FDM-TSIB-035

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10206174
Published by NHTSA2022-01-07
Manufacturer's numberFDM-TSIB-035
Manufacturer's date2021-12-07
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING; POWER TRAIN

NHTSA's summary

This bulletin informs customers that Cummins has released an ECM calibration improvement to pre-2021 X12 engines used in front discharge mixer applications. The improved ECM calibration addresses DPF plugging concerns.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Fuel system, Transmission and driveline, Engine control module

Vehicles listed
CUMMINS POWER GENERATION GENERATOR SET2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.