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Service bulletin TIB-E-029

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 id10040244
Published by NHTSA2011-08-17
Manufacturer's numberTIB-E-029
Manufacturer's date2011-03-24
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

PACCAR: THERE MAY BE FALSE TORQUE READINGS AND A POTENTIAL FOR LOOSENING AND/OR LEAKS OF THE DOSER SUPPLY LINE SWIVEL NUT. THIS IS DUE TO IT NOT BEING LUBRICATE PRIOR TO ASSEMBLY. *RM

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
KENWORTH T6602010 to 2011
KENWORTH T7002010 to 2011
KENWORTH T8002010 to 2011
KENWORTH W9002010 to 2011

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