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Service bulletin SP-307, Rev. B

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 id10138478
Published by NHTSA2018-05-21
Manufacturer's numberSP-307, Rev. B
Manufacturer's date2018-03-01
NHTSA componentSUSPENSION

NHTSA's summary

Operation Name: Hendrickson Truck Commercial Vehical Systems Document Name: Parts List - AIRTEK NXT for Freightliner Cascadia Vehicles Summary: This document provides a parts list for Hendrickson AIRTEK NXT integrated front suspension and axle systems equipped on applicable Freightliner Cascadia vehicles.

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.