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Service bulletin SB23-J-001A

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 id10241827
Published by NHTSA2023-09-05
Manufacturer's numberSB23-J-001A
Manufacturer's date2023-08-31
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

The vacuum pump service part for affected vehicles listed in this bulletin has been superseded and is now the same vacuum pump that is the service part for the 6.6L gas engine. The updated pump requires the outlet vacuum hose be rerouted for proper fitment. Follow the service procedure below to install the updated replacement vacuum pump and reroute the outlet vacuum hose as set forth below.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
ISUZU N-SERIES2008 to 2022

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