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Service bulletin P56030

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 id10197397
Published by NHTSA2021-06-14
Manufacturer's numberP56030
Manufacturer's date2015-11-23
NHTSA componentWHEELS; EQUIPMENT; TIRES

NHTSA's summary

Hendrickson Trailer Commercial Vehicle Systems recently converted all new TIREMAAX kits to thermoplastic tire hoses. In addition to converting the hose material, Henderickson also added hose lenghts to better address the wide variety of wheel combinations in the market. The below chart summarizes the thermoplastic tire hose part numbers by wheel combination, length, and identification label color.

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

Equipment and accessories, Tires, Wheels

Vehicles listed
HENDRICKSON HENDRICKSON

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