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Service bulletin T1338A

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 id10085330
Published by NHTSA2016-12-01
Manufacturer's numberT1338A
Manufacturer's date2014-03-05
NHTSA componentENGINE

NHTSA's summary

THIS TEMPORARY REPAIR PRACTICE ADDRESSES EXHAUST MANIFOLD SLIP JOINT LEAKS BY INSTALLING A ONE PIECE MANIFOLD ON CERTAIN ENGINES.

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 ISB6.7

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