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Service bulletin P36025

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 id10131572
Published by NHTSA2018-04-02
Manufacturer's numberP36025
Manufacturer's date2018-02-01
NHTSA componentTRAILER HITCHES; PARKING BRAKE:DRIVELINE:HYDRAULIC:ACTUATOR

NHTSA's summary

Operation Name: Hendrickson Trailer Commercial Vehical Systems Document Name: Product Update - SURELOK Update Summary: This document announces that, beginning in March 2018, Hendrickson will start providing, for both aftermarket and new production purposes, Hendrickson SURELOK air spring actuators that are dual-sourced from two separate suppliers. The two respective SURELOK actuators differ visually, but have the same fit and function.

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

Brakes, Trailer hitch, Parking brake

Vehicles listed
HENDRICKSON HENDRICKSON

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