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Service bulletin 4

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 id6090010
Published by NHTSA2000-03-01
Manufacturer's number4
Manufacturer's date1998-11-03
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

SUBJECT REGARDING RE-ROUTED AIR SUPPLY LINE ON UNITS WITH CUMMINS 6B ENGINE EQUIPMENT WITH BENDIX 2150 AIR COMPRESOR. *TT

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
THOMAS MVP EF
THOMAS MVP ER

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