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Service bulletin SB-E-044

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 id10042624
Published by NHTSA2011-12-30
Manufacturer's numberSB-E-044
Manufacturer's date2011-09-23
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

PETERBILT: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INFORMATION PROVIDED FOR PRODUCT IMPROVE BY REPLACING CYLINDER HEAD VALVE SPRING ON CERTAIN TRUCKS. *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

Vehicles listed
CUMMINS CUMMINS
PETERBILT PETERBILT

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