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Service bulletin SIL 658

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 id10130528
Published by NHTSA2018-04-02
Manufacturer's numberSIL 658
Manufacturer's date2017-12-07
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

This service informaiton letter (SIL) notified the customer to 1) inspect the hydraluic oil return line filer to ensure it is properly installed and 2) to inspect the unit serial number placard for the correct GVWR rating.

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

Fuel system

Vehicles listed
ALTEC ALTEC

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