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Service bulletin L578, Rev. F

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 id10142544
Published by NHTSA2018-07-02
Manufacturer's numberL578, Rev. F
Manufacturer's date2018-04-01
NHTSA componentSUSPENSION:MULTIPLE AXLE; TRAILER HITCHES; SUSPENSION

NHTSA's summary

Operation Name: Hendrickson Trailer Commercial Vehical Systems Document Name: Technical Procedure - Preventive Maintenance Guide, Flood Service Requirements Summary: This document provides the above-referenced guidelines for Hendrickson trailer suspensions, axles and components.

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

Suspension, Trailer hitch

Vehicles listed
HENDRICKSON HENDRICKSON

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