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Service bulletin FSB 491-030

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 id10083449
Published by NHTSA2016-10-24
Manufacturer's numberFSB 491-030
Manufacturer's date2016-06-22
NHTSA componentENGINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY

NHTSA's summary

OIL COOLER LINE, INSTALLATION

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, Cooling system, Radiator

Vehicles listed
MACK MACK

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