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Service bulletin C0827

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 id10026044
Published by NHTSA2008-09-26
Manufacturer's numberC0827
Manufacturer's date2008-07-08
NHTSA componentENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

CUMMINS: L GAS PLUS VALVE GUIDE, VALVE STEM SEAL, AND AIR COMPRESSOR COOLANT LINES. INSPECT AND REPLACE THE EXHAUST VALVE GUIDES, INSTALL NEW EXHAUST VALVE STEM SEALS, INSPECT AND REPAIR AND INSTALL NEW AIR COMPRESSOR COOLANT LINES. *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 AIR COMPRESSOR
CUMMINS CUMMINS
CUMMINS ENGINE

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