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Service bulletin TSB-120261

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 id10050559
Published by NHTSA2013-02-04
Manufacturer's numberTSB-120261
Manufacturer's date2012-11-27
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

NHTSA's summary

CUMMINS: DUE TO A LEAKAGE OF COOLANT FROM TORQUE CONVERTER COOLANT HOSE, AND SQUARE ADAPTER AND TEE FITTING ARE USED IN (CC) OPTIONS, WHICH CAUSES RUBBING OF AIR COMPRESSOR PLUMBING OPTION AGAINST COOLANT HOSES, TWO ADAPTERS WERE APPROVED, ONE SQUARE AND ONE HEXAGONAL (HEXAGONAL WILL NOT CUT HOSE). ALL HOSE LINES SHOULD BE INSPECTED FOR DAMAGES AND REPLACED, IF NEEDED. NO MODEL YEARS ARE LISTED. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Cooling system

Vehicles listed
CUMMINS CUMMINS

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