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Service bulletin SB9801C001

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 id6092437
Published by NHTSA2000-12-07
Manufacturer's numberSB9801C001
Manufacturer's date1998-07-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

THE ISUZU ENGINEERING DEPARTMENT AND AIPDN HAVE DISCOVERED THAT COMMERCIAL VEHICLES (CV) EQUIPPED WITH 4BD2-TC ENGINES HAVE INCORRECT PISTON RING APPLICATIONS INCORPORATED INTO SOME 4BD2-TC LINER SETS.

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
ISUZU CV

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