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Service bulletin L840, Rev. D

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 id10138459
Published by NHTSA2018-05-21
Manufacturer's numberL840, Rev. D
Manufacturer's date2018-03-01
NHTSA componentSUSPENSION

NHTSA's summary

Operation Name: Hendrickson Trailer Commercial Vehical Systems Document Name: Specifications - INTRAAX-SP AAZNT 23K/46K/69k, AAZL 23K/46K Summary: This document provides specifications for Hendrickson INTRAAX-SP trailer suspension models AAZNT 23K/46K/69k and AAZL 23K/46K.

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

Vehicles listed
HENDRICKSON HENDRICKSON

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