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Service bulletin TSB-101050

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 id10034578
Published by NHTSA2010-12-07
Manufacturer's numberTSB-101050
Manufacturer's date2010-08-24
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

CUMMINS: EGR COOLER INLET TUBE LEAKS. THE EXHAUST GAS RECIRCULATION (EGR) COOLER COOLANT INLET TUBES HAVE BEEN FOUND TO LEAK, DUE TO MISALIGNMENT OF THE TUBE TO THE EGR COOLER CONNECTION. THE ASSEMBLY PROCEDURE AND TORQUE SEQUENCE ARE CRITICAL WHEN ASSEMBLING THE EGR COOLER COOLANT INLET TUBE AND THE TRANSFER TUBE TO THE EGR COOLER AND THE ENGINE. NO MODELS OR MODEL YEARS 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, Exhaust and emissions, EGR valve

Vehicles listed
CUMMINS CUMMINS
CUMMINS ENGINE
CUMMINS ISB
CUMMINS ISB 6 CYLINDER2004

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